Great Planes GPMA1019 User Manual

SPECIFICATIONS

Wingspan:

Wing Area: 832 in

70 in
[1780mm]

2

[53.7 dm2]

Weight:

Wing

Loading:

8.5 – 9.25 lb
[3850–4190 g]

24– 26 oz/ft
[73–79 g/dm2]

2

WARRANTY

Great Planes® Model Manufacturing Co. guarantees this kit to

be free from defects in both material and workmanship at the
date of purchase. This warranty does not cover any component
parts damaged by use or modification. In no case shall Great
Planes’ liability exceed the original cost of the purchased kit.
Further, Great Planes reserves the right to change or modify this
warranty without notice.

In that Great Planes has no control over the final assembly or
material used for final assembly, no liability shall be assumed nor
accepted for any damage resulting from the use by the user of
the final user-assembled product. By the act of using the
user-assembled product, the user accepts all resulting liability.

If the buyer is not prepared to accept the liability associated
with the use of this product, the buyer is advised to return

INSTRUCTION

MANUAL

Radio: 4-channel minimum with

4-5 servos and standard
size receiver

Engine: .61–.75 [10–12.5 cc] two stroke

.81–.91 [13.5–15 cc] four stroke

™

Motor: RimFire

outrunner brushless motor

this kit immediately in new and unused condition to the
place of purchase.

To make a warranty claim send the defective part or item to
Hobby Services at the address below:

Hobby Services

3002 N. Apollo Dr. Suite 1

Champaign IL 61822 USA

Include a letter stating your name, return shipping address, as
much contact information as possible (daytime telephone
number, fax number, e-mail address), a detailed description of
the problem and a photocopy of the purchase receipt. Upon
receipt of the package the problem will be evaluated as quickly
as possible.

80 (50-55-500)

READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT

INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.

Champaign, Illinois

[phone], Ext 5

[e-mail]

Entire Contents © Copyright 2009 GPMA1019 Mnl

TABLE OF CONTENTS

INTRODUCTION

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

AMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . .3

DECISIONS YOU MUST MAKE . . . . . . . . . . . . . . . . . . . .3

Radio Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Power System Recommendations. . . . . . . . . . . . . . . .4

Propeller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Batteries and Charger . . . . . . . . . . . . . . . . . . . . . . . . .4

ADDITIONAL ITEMS REQUIRED. . . . . . . . . . . . . . . . . . .4

Adhesives and Building Supplies. . . . . . . . . . . . . . . . .4

Optional Supplies and Tools . . . . . . . . . . . . . . . . . . . .5

IMPORTANT BUILDING NOTES . . . . . . . . . . . . . . . . . . .5

ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . .5

KIT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

KIT CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

PREPARATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

BUILD THE WING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Install the Aileron Servos and Pushrods . . . . . . . . . . .7

BUILD THE FUSELAGE. . . . . . . . . . . . . . . . . . . . . . . . . .9

Assemble the Tail Section . . . . . . . . . . . . . . . . . . . . . .9

Install the Elevator and Rudder Servos . . . . . . . . . . .11

Assemble and Install the Main Landing Gear . . . . . .12

INSTALL THE POWER SYSTEM . . . . . . . . . . . . . . . . . .13

Glow Engine, Throttle Servo

and Fuel Tank Installation. . . . . . . . . . . . . . . . .13

Brushless Motor Installation. . . . . . . . . . . . . . . . . . . .16

FINISH THE MODEL . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Install the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . .17

Install the Cowl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Install the Canopy Hatch. Pilot and Spinner . . . . . . .18

Apply the Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

GET THE MODEL READY TO FLY. . . . . . . . . . . . . . . . .19

Install and Operate the Motor Battery . . . . . . . . . . . .19

Check the Control Directions. . . . . . . . . . . . . . . . . . .19

Set the Control Throws . . . . . . . . . . . . . . . . . . . . . . .19

Balance the Model (C.G.) . . . . . . . . . . . . . . . . . . . . .20

Balance the Model Laterally . . . . . . . . . . . . . . . . . . .20

PREFLIGHT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Identify Your Model . . . . . . . . . . . . . . . . . . . . . . . . . .20

Charge the Batteries . . . . . . . . . . . . . . . . . . . . . . . . .20

Balance Propellers. . . . . . . . . . . . . . . . . . . . . . . . . . .21

Ground Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Range Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

ENGINE SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . .21

LITHIUM BATTERY HANDLING AND USAGE . . . . . . .21

Install and Connect the Motor Battery . . . . . . . . . . . .22

AMA SAFETY CODE . . . . . . . . . . . . . . . . . . . . . . . . . . .22

CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Fuel Mixture Adjustments . . . . . . . . . . . . . . . . . . . . .23

Takeoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Flight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Landing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Congratulations on the purchase of the Great Planes
Revolver .6 1 ARF! After the great success of the .46 Revolver
and your many requests for a larger version, we are proud
to bring you the Revolver .61. This plane was designed for
the average sport pilot who wants an airplane that looks
good, fl ies fast, and is capable of performing a wide range
of aerobatic maneuvers. Loops, rolls, positive and negative
snap rolls, hammerheads, and lo mcevaks are all within the
capabilities of this airplane. We have incorporated many
features found only on larger airplanes. The plug-in wings,
composite landing gear, and a removable canopy for easy
access to the inside of the fu selage are all features you will
come to appreciate.

For the latest technical updates or manual corrections to
the Revolver ARF visit the Great Planes web site at www.
greatplanes.com. Open the “Airplanes” link, then select the
Revolver .61 ARF. If there is new technical information or
changes to this mod el a “tech noti ce” b ox will appear in t he
upper left corner of the page.

AMA

We urge you to join the AMA (Academy of Model Aeronautics)
and a local R /C club. The AMA is the governing body of
model aviation and membership is required to fl y at AMA
clubs. Though joining the AMA provides many benefi ts, one
of the primary reasons to join is liability protection. Coverage
is not limited to fl ying at contests or on the club fi eld. It even
applies to fl ying at public demonstrations and air shows.
Failure to comply with the Safety Code ( excerpts printed in
the back of the manual) may endanger insurance coverage.
Additionally, training programs and instructors are available
at AMA club sites to help you get started the right way . There
are over 2,500 AMA chartered clubs across the country.
Contact the AMA at the address or to ll-free phone number
below.

Academy of Model Aeronautics

5151 East Memorial Drive
Muncie, IN 47302

Tele: [phone]
Fax [phone]

Or via the Internet at: http://www.modelaircraft.org

IMPORTANT!!! Two of the most important things you can
do to preserve the radio controlled aircraft hobby are to
avoid fl ying near full-sc ale aircraft and avoid fl ying near or
over groups of people.

2

PROTECT YOUR MODEL, YOURSELF

& OTHERS… FOLLOW THESE

IMPORTANT SAFETY PRECAUTIONS

1. Your Revolver ARF should not be considered a toy, but
rather a sophisticated, working model that functions very
much like a full-size airplane. Because of its per formance
capabilities, the Revolver, if not assembled and operated
correctly, could possibly cause injury to yourself or spectators
and damage to property.

2. You must assemble the model according to the
instructions. Do not alter or modify th e model, as doing
so may result in an unsafe or unfl yable model. In a few
cases the instructio ns may dif fer slight ly from th e photos.
In those instances the written instructions should be
considered as correct.

3. You must take time to build straight, true and strong.

4. You must use an R/C radi o system that is in fi rst-class
condition, and a correctly sized engine and components
(fuel tank, wheels, etc.) throughout the building process.

We, as the kit manufacturer, pro vide you with a top quality,
thoroughly tested kit and instructions, but ultimately the
quality and fl yability of your fi nished model depends
on how you build it; therefore, we cannot in any way
guarantee the performance of your completed model,
and no representations are expressed or implied as to the
performance or safety of your completed model.

Remember: Take your time and follow the instructions to
end up with a well-built model that is straight and true.

DECISIONS YOU MUST MAKE

This is a partial list of items required to finish the
Revolver .61 ARF that may require planning or decision
making before starting to build. Order numbers are
provided in parentheses.

Radio Equipment

5. You must correc tly install all R /C and other co mponents
so that the model operates correctly o n the ground and in
the air.

6. You must check the operatio n of the mo del before every
fl ight to insure that all equipment is operating and that the
model has remained structurally sound. Be sure to check
clevises or other connector s often and re place them if they
show any signs of wear or fatigue.

7. If you are not an experienced pilot or have not fl own
this type of mod el before, we recommend that you get the
assistance of an experienced pilot in your R/C club for
your fi rst fl ights. If you’re not a member of a club, your local
hobby shop has information about clubs in your area whose
membership includes experienced pilots.

8. While this kit has been fl ight tested to exceed normal use,
if the plane will be used for extremely high stress fl ying, such
as racing, or if an engine larger than one in the recommended
range is used, the modeler is responsible for taking steps to
reinforce the high stress points and/or substituting hardware
more suitable for the increased stress.

9. WARNING: The cowl and wheel pants included in this kit
are made of fi berglass, the fi bers of which may cause eye,
skin and respiratory tr act irritation. Never blow into a part
to remove fi berglass dust, as the dust will blow back into
your eyes. Always wear saf ety goggles, a particle mask and
rubber gloves when grinding, drilling and sanding fi berglass
parts. Vacuum the parts and th e work area th oroughly after
working with fi berglass parts.

The Revolver .61 ARF requires a minimum 4-c hannel radio
system with fi ve 50 oz.-in. [3.6 kg-cm] minimum standard
servos. If you are installing a glow engine, an additional
standard servo is required for the throttle.

In addition, two 6" [152mm] servo extensions are require d
for the aileron servos. If you are using a radio system that
does not suppor t mixing functio ns, a Y-harness will also be
required to connect the aileron servos to the receiver.

If you plan to install a brushless motor, you will need a 6"
[1 52mm] servo extension for the ESC. If you plan to install a
glow engine, you will need a 12" [305mm] servo extension
for the receiver battery pack.

A charge jack receptacle is optional, but is useful for
recharging the receiver pack without removing the
canopy hatch and is shown in the assembly of the p lane.
Recommended par t num bers for the r adio co mponent s are
provided below:

Futaba

❏

(FUTM0075)

Hobbico

❏

(HCAM2701)

Hobbico Pro HD Y-Harness Futaba J (HCAM2751)

❏

Hobbico Pro HD Extension 12" [305mm] Futaba J

❏

(HCAM2711)

Ernst Charge Receptacle Futaba J FM (ERNM3001)

❏

®

S9001 Servo Aircraft Coreless BB

®

Pro™ HD Extension 6" [152mm] Futaba J

3

Power System Recommendations

The recommended eng ine/motor size for the Revolver ARF
is a .61– . 7 5 [ 1 0 – 1 2.5 cc] two stroke, .81 – .91 [1 3.5 – 1 5 cc]
four stroke, or a RimFire
6S 3200 mAh LiPo, and 15 x 7E prop. Engine and motor
order numbers are provided below:

®

O.S.

❏

❏

❏

❏

❏

❏

❏

.61 FX ABL (OSMG0561)

SuperTigre

®

G – 75 (SUPG0205)

O.S. 81FS (OSMG0981)
O.S. 91FS (OSMG0890)
Bisson O.S. 61SF/50FX Pitts Muffl er (BISG4061)
Great Planes RimFire .80 (50-55-500) Outrunner

Brushless Motor (GPMG4740)

Great Planes Brushless Large Motor Mount

(GPMG1260)

™

80 (50-55-500), with SS60 ESC,

A suitable charger is also required. The Great Planes
PolyCharge4
to charge four LiPo packs simultaneously. The Great Planes
Triton2™ charger will only charge one pack at a time, but
is capable of charging NiCd, NiMH, LiPo, and lead acid
batteries. Order numbers for both are provided below:

Great Planes PolyCharge4 DC Only 4 Output LiPo

❏

Charger (GPMM3015)

OR

Great Planes ElectriFly Triton2 DC Comp Peak

❏

Charger (GPMM3153)

™

is designed for LiPo packs only, but is able

ADDITIONAL ITEMS REQUIRED

This is the list of hardware and accessories required to
fi nish the Revolver .61 ARF. Order numbers are provid ed
in parentheses:

If using the recommended brushless motor, a 60A brushless
ESC is required:

Great Planes Silver Series 60A Brushless ESC High

❏

Volt (GPMM1850)

Propeller

If you are installing a glow engine, choose a prop based
on the engine manufacturer’s recommend ation. If you are
installing the recommended RimFire brushless motor, we
suggest an APC 15x7E Electric Propeller (APCQ1830).

Batteries and Charger

For a brushless motor installation, two 3200mAh 11.1V
Lithium Polymer battery packs connected in series are
recommended. Order numbers for the battery packs and
series connector are provided below:

Great Planes LiPo 3200mAh 11.1V 20C Discharge w/

❏

Balance (GPMP0623)

Great Planes Series Deans

❏

(GPMM3143)

A cell balancer is required for the LiPo battery pac k listed
above:

Great Planes ElectriFly

❏

1-5 (GPMM3160)

®

U 2 to 1 Adapter

™

Equinox™ LiPo Cell Balancer

Adhesives and Building Supplies

This is the list of Adhesives and Building Supp lies that are
required to fi nish the Revolver ARF:

1/2 oz. [15g] Thin Pro CA (GPMR6001)

❏

1/2 oz. [15g] Medium Pro CA+ (GPMR6007)

❏

Pro 30-Minute Epoxy (GPMR6047)

❏

Masking Tape (TOPR8018)

❏

Threadlocker Thread Locking Cement (GPMR6060)

❏

Denatured Alcohol (for epoxy clean up)

❏

R/C Foam Rubber (1/4" [6mm], HCAQ1000; or 1/2"

❏

[13mm], HCAQ1050)

3' [900mm] Standard Silicone Fuel Tubing

❏

(GPMQ4131)

Drill bits: 1/16" [1.6mm], 5/64" [2mm], 3/32" [2.4mm],

❏

9/64" [3.6mm]

Great Planes Tap & Drill Set 8-32 (GPMR8102, Glow

❏

Engine Installation Only)

Tap Handle (GPMR8120)

❏

Small Metal File

❏

#1 Hobby Knife (HCAR0105)

❏

#11 Blades (5-pack, HCAR0211)

❏

Medium T-pins (100, HCAR5150)

❏

Top Flite® MonoKote

❏

Top Flite Hot Sock

❏

220-grit Sandpaper

❏

1/2" [13mm] Double-sided Foam Mounting Tape

❏

(GPMQ4440, Brushless Installation Only)

Microballoons (TOPR1090)

❏

Panel Line Pen (TOPQ2510)

❏

®

Sealing Iron (TOPR2100)

™

Iron Cover (TOPR2175)

4

Optional Supplies and Tools

Here is a list of optional tools that will help you build the
Revolver ARF:

1/2 oz. [15g] Thick Pro CA- (GPMR6013)

❏

2 oz. [57g] Spray CA Activator (GPMR6035)

❏

4 oz. [113g] Aerosol CA Activator (GPMR6034)

❏

CA Applicator Tips (HCAR3780)

❏

CA Debonder (GPMR6039)

❏

Pro 6-Minute Epoxy (GPMR6045)

❏

Epoxy Brushes (6, GPMR8060)

❏

Mixing Sticks (GPMR8055)

❏

Mixing Cups (GPMR8056)

❏

Pliers with Wire Cutter (HCAR0630)

❏

Hobbico Duster

❏

Switch & Charge Jack Mounting Set (GPMM1000)

❏

Rotary Tool such as Dremel

❏

Rotary Tool Reinforced Cut-Off Wheel (GPMR8020)

❏

Servo Horn Drill (HCAR0698)

❏

Hobby Heat

❏

Dead Center

❏

(GPMR8130)

Precision Magnetic Prop Balancer (TOPQ5700)

❏

AccuThrow

❏

CG Machine

❏

Hobbico Flexible 18" Ruler Stainless Steel

❏

(HCAR0460)

Top Flite MonoKote Trim Seal Iron (TOPR2200)

❏

Top Flite MonoKote Heat Gun (TOPR2000)

❏

Hobbico Pin Vise 1/16 Collet w/6 Bits (HCAR0696)

❏

Hobbico 8-Piece Ball Tip Hex L Wrench SAE

❏

(HCAR0520)

Hobbico 7-Piece Ball Tip Hex L Wrench Metric

❏

(HCAR0521)

Great Planes Clevis Installation Tool (GPMR8030)

❏

™

Compressed Air (HCAR5500)

™

Micro Torch (HCAR0750)

™

Engine Mount Hole Locator

™

Defl ection Gauge (GPMR2405)

™

(GPMR2400)

IMPORTANT BUILDING NOTES

30-minute epoxy is specifi ed it is highly recommended that
you use only 30- minute (or 45 - minute) ep oxy, because you
will need the working time and/or the additional strength.

• Photos and sketches are placed before the step they
refer to. Frequently you can study photos in following steps
to get another view of the same parts.

• The stabilizer and wing incidences and engine thrust
angles have been factory-built into this model. However,
some technically-minded modelers may wish to check these
measurements anyway. T o view this information visit the web
site at www.greatplanes.com and click on “Technical Data.”
Due to manufacturing tolerances w hich will have little or no
effect on the way your model will fl y, please expect slight
deviations between your model and the published values.

ORDERING REPLACEMENT PARTS

Replacement part s for the Revolver .61 ARF are available
using the order numbers in the Replacement Parts List
that follows. The fastest, most economical ser vice can be
provided by your hobby dealer or mail-order company.

To locate a hobby dealer, visit the Great Planes web site
at www.greatplanes.com. Choose “Where to Buy” at the
bottom of the menu on the lef t side of the pag e. Follow the
instructions provided on the page to locate a U.S., Canadian
or International dealer.

Parts may also be ordered directly from H ob by Ser vi ces by
calling [phone], or via facsimile at [phone],
but full retail prices and shipping and handling c harges will
apply. Illinois and Nevada residents will also be charged
sales tax. If ordering via fax, include a Visa
number and expiration date for payment.

Mail parts orders and payments by personal check to:

Hobby Services

3002 N. Apollo Drive, Suite 1
Champaign, IL 61822

Be certain to sp ecify the order number exactly as li sted in
the Replacement Parts List. Payment by credit card or
personal check only; no C.O.D.

®

or MasterCard®

• When you see the term test fi t in the instructions, it means
that you should fi rst position the part on the assembly
without using any glue, then slightly modify or custom fi t
the part as necessary for the best fi t.

• Whenever the term glue is written you should rely upon
your experience to decide what type of glue to use. When
a specifi c type of adhesive works best for that step, the
instructions will make a recommendation.

• Whenever just epoxy is specifi ed you may use either
30-minute (or 4 5-minute) epoxy or 6-minute epoxy. When

If additional assistance is required for any reason, contact
Product Support by telephone at [phone], or by
e-mail at [e-mail].

5

REPLACEMENT PARTS LIST

Order No. Description

KIT INSPECTION

GPMA3275
GPMA3276
GPMA3277
GPMA3278
GPMA3279
GPMA3280
GPMA3281
GPMA3282
GPMA3283
GPMA3284

NOTE

Fuselage (No Canopy or Hatch)
Wing Set
Tail Set
Cowl
Landing Gear
Wheel Pants
Canopy
Spinner
Decal
Wing Tube

Full-size plans are not available.
You can download a copy of this
manual at www.greatplanes.com.

Before starting to build inspect the parts to make sure
they are of acceptable qualit y. If any parts are missing or
are not of acceptable quality, or if you need assistance
with assembly, contact Product Support. W hen reporting
defective or missing parts, use t he part names exactly as
they are written in the Kit Contents list.

Great Planes Product Support

3002 N. Apollo Drive, Suite 1
Champaign, IL 61822

Telephone: [phone], ext. 5
Fax: [phone]

E-mail: [e-mail]

KIT CONTENTS

3

2

12

10

11

1. Fuselage

2. Cowl

3. Canopy Hatch

4. Left Wing Panel w/Aileron

5. Right Wing Panel w/Aileron

6. Horizontal Stabilizer

1

13

14

7 7

99

5

7. Elevator Halves (L&R)

8. Composite Wing Tube

9. Wheel Pants (L&R)

10. Landing Gear (L&R)

11. Main Wheels (2)

12. Spinner

17

16

15

6

8

4

13. Engine Mount

14. Fuel Tank

15. Rudder

16. Tail Wheel

17. Pilot Figure

6

PREPAR ATIONS

1. If y ou have not done so already , remove the major parts

❏

of the kit from the box and inspec t for damage. If any parts
are damaged or missing, contact Product Support at the
address or telephone number listed in the “ Kit Inspection”
on the previous page.

2. Carefully remove the tape and separate all the control

❏

surfaces. Use a covering iron with a covering sock on high
heat to tighten the covering if necessary. Apply pressure
over sheeted areas to thoroughly bond the covering to
the wood.

2. Drill a 1/16" [1.6mm] hole in the hatch covers

❏ ❏

through the mounting blocks approximately 3/8" [9.5mm]
deep. Thread a #2 x 3/8" [9.5mm] fl at head wood screw into
each hole and back it out. Apply a drop of thin CA glue to
each hole to harden the wood. When the CA glue has dried,
thread a #2 x 3/ 8" [9.5mm] fl at head screw into each of the
four holes.

3. Cut three arms from a four-armed servo arm for

❏ ❏

each aileron servo. Enlarge the outer hole of each remaining
arm with a 5/64" [2mm] drill bit.

BUILD THE WING

Install the Aileron Servos & Pushrods

Before completing this section, confi rm that the servos that
you will be using will properly fi t between the servo mounting
block locations on the aileron servo hatch covers. Make
adjustments as neces s ary for your brand servos. The b l ock
locations shown in this section will fi t a standard size Futaba
brand servo.

1. Use epoxy to glue the 11/16" x 11/16" x 5/16"

❏ ❏

[17.5mm x 17.5mm x 7.9mm] hardwood servo mounting
blocks to the insides of the hatch covers. Be sure that
the blocks are aligned over the rectangles with t he grain
direction perpen d i c ular to t he covers as shown. Allow the
epoxy to cure.

4. Attach a 6" [152mm] servo extension to the aileron

❏ ❏

servo and secure the conne ctor using tape or heat shrink
tubing (not included). Center the servos with your radio
system and install the servo arms to the servos perpendicular
to the servo cases as shown. Be sure to reinst all the ser vo
arm screws into the servos.

5. Position the servos against the underside of the

❏ ❏

aileron servo hatch covers between the mounting blocks.
Drill 1/16" [1.6mm] holes through the mount ing tabs on the
servo cases into the blocks. Thread a servo mounting screw
(included with the servo) into each hole and back it out.
Apply a drop of thin CA to each hole to harden the wood.
When the CA has dried, install the servos onto the hatch
covers using the hardware supplied with the servos.

7

6. Inside the servo bay string is taped. Tie the str ing

❏ ❏

to the servo lead. Taped to the root rib you will fi nd the other
end of the string. Pull the string and the ser vo lead through
the wing.

7. Position the aileron servo hatch covers in place

❏ ❏

and drill a 1/16" [1.6mm] hole through the m ounting holes
and into the hatch mounting blocks. Thread a #2 x 3 /8"
[9.5mm] screw into each hole and back it out. Apply a drop
of thin CA to each hole to harden the wood. Install the hatch
covers to the wings using four #2 x 3/ 8" [ 9.5mm ] and four
#2 fl at washers.

Refer to this photograph for steps 9-11

CORRECT INCORRECT

Hinge Line Hinge Line

9. Position the control horns over the plywood plate

❏

in the aileron (if you cannot see it, hold the aileron at a
shallow angle in good lighting or use a small pin to puncture
the covering) using the position of the servo arms as a
guide. Align the holes in the co ntro l hor n s d ire c t ly over the
aileron hinge line and mark the location of the control horn
mounting holes.

10. Drill 1/16" [1.6mm ] holes at the marks you made

❏ ❏

through the plywood plates. Do not drill all the way through
the ailerons! Thread a #2 x 3 /8" [9.5 mm] screw through

each hole and back it out. Apply a couple drops of thin CA
glue to each hole to harden the wood. When the glue has
dried, install the control horns onto the ailerons using two #2
x 3/8" [9.5mm] screws.

8. Thread a nylon clevis 20 complete turns onto each 6"

❏

[152mm] pushrod. Slide a sili cone c levis retainer onto each
clevis and connect the c levis to the outer hole of a nylon
control horn.

90 Degree
Pushrod
Connector

Servo Horn Pushrod Wire

11 . Use tape to hold the aileron in the neutral position.

❏ ❏

Make a mark on the pushrod where they cross the outer
holes in the servo arms. Make a 90 degree bend at the
mark on the pushrod and cut of f the excess pushrod 1/4"

8

[6.4mm] beyond the bend. At tach the pushrod to t he servo
arm using a nylon FasLink. Thread the clevise up or d own
on the pushrod as necess ary to center the aileron wit h the
servo arm centered. When satisfi ed, slide the silicone clevis
retainer to the end of the clevise to secure it.

12. Repeat steps 1-11 for the opposite wing.

❏

BUILD THE FUSELAGE

Assemble the Tail Section

1. Slide the wing tube into the fuselage centering the

❏

tube in the fuselage.

2. Install the wing panels onto the wing tube and secure

❏

them to the fuselage using two nylon wing bolts.

4. Center the stab left and right in the fuselage,

❏

using the uncovered balsa as a guide. Measure the
distance from the stab tips to the wing tips and make the
measurements equal.

5. View the model from behind and confi rm that the

❏

stab is parallel with the wing panels. If not, lightly sand the
stab slot to adjust the position of the stab. Use 30-minute
epoxy to glue the stab into the fu selage. Use denatured
alcohol to clean up any excess ep oxy. Allow the epoxy to
cure undisturbed.

3. Slide the horizontal stabilizer into the stab slot at the

❏

aft end of the fuselage.

6. Locate three hinges. Insert a pin through the center

❏ ❏

of each hinge and then insert the hing e into the hinge slot s
in the trailing edge of the stabilizer.

9

7. Slide the hinges into the slots in the elevator, sliding

❏ ❏

the elevator tightly to the stabilizer. Apply six drops of thin
CA to each of the hinges. Allow the glue to harden. Do not
use CA accelerator on the hinges. This will cause the hinge
to get brittle and possibly crack.

10. Roughen the portion of the tail wheel wire assembly

❏

that fi ts into the rudder with 220-grit sand paper and clean it
off with alcohol. Glue t he tail whe el wire into the ho le in the
LE of the rudder with medium or thick CA glue. Be sure not
to get glue onto the nylon tab where it rotates on t he wire
(oil applied on the tail whee l wire around the tab will help
prevent glue from sticking to it).

8. Thread a nylon clevis 20 complete turns onto each

❏ ❏

36" [914mm] pushrod. Slide a silicone clevis retainer onto
each clevis and connect t he clevis to the sec ond hole from
the end of the control horn. Slid e the pushrod wire into the
hole closest to the stabilizer on the right side of the fuselage.
Slide the wire into the fuselage until the control horn rests on
the plywood plate in the elevator. Drill 1/16" [1.6mm] holes
at the marks. Do not drill all the way through the elevator
halves! Thread a # 2 x 3/8" [ 9.5mm] sc rew into each hole
and back it out. Apply a couple drops of thin CA glue to each
hole and let it harden. Attach the elevator control horn to the
elevator using four #2 x 3/8" [9.5mm] screws.

9. Repeat step 5 – 8 for the remaining elevator half,

❏

installing the remaining pushrod into the hole on the left side
of the fuselage.

11. Place pins through the center of three hinges. Inser t

❏

the hinges into the slots in the rudder. Test fi t the rudder
to the fuselage with the tail wheel assembly. Make any
adjustments neces sary so the nylon tab on the tail wheel
wire fi ts all the way into the slot in the fuse.

12. Once you are satisfi ed every thing fi ts, apply a lig ht

❏

amount of epoxy to each side of th e nylon tab. Install the

10

rudder to the fi n. Position the rudder and then apply six
drops of thin CA to each of the hinges. Set the plane aside
until the glue hardens.

13. Secure the tail wheel to the tail wheel assembly

❏

with a 3/32" [2.4mm] wheel collar and a 4-40 set screw. Be
sure that the tail wheel rotates freely on the a xle. Oil the
axle if necessary.

1. Install the elevator servo into the ser vo tray with the

❏

hardware that came with the servo. Locate the servo where
shown. Align the last hole in the servo arm with the pushrod
wire for the left elevator. Center the lef t elevator half. Make
a mark on the wire where it aligns with the outer hole in
the servo arm. Make a 90 degree bend at the mark on the
pushrod and cut off the excess pushrod 1/4" [6.4mm] beyond
the bend.

14. Thread a nylon clevis 20 complete turns onto the

❏

remaining 36" [914mm] pushrod. Slide a silicone clevis
retainer onto the clevis and connect the clevis to the second
hole from the end of the control horn. Slide the pushrod wire
into the lower hole on the left side of the fuselage. Slide
the wire into the fuselage until the control hor n rests on the
plywood plate in the rud der. Drill 1/16" [1.6mm] holes at the
marks. Do not drill all the way through the rudder ! Thread
a #2 x 3 /8" [ 9.5mm] screw into each hole and bac k it out.
Apply a couple drops of thin CA glue to each hole and let it
harden. Attach the ru dder control horn to the r udder using
two #2 x 3/8" [9.5mm] screws.

Install the Elevator & Rudder Servos

2. Position the right elevator in the neutral position and

❏

then cut off the excess pushrod wire 1" [25.4mm] behind the
elevator servo arm. Join the two elevator pushrods together
using two 5/32" [4mm] wheel collars, two 6-32 x 1/4" [6.4mm]
SHCS and thread locking co mpound. View the model from
behind and confi rm that the elevator halves are parallel. If
not, make any adjustments as necessar y to the clevises or
wheel collars until they are. When satisfi ed, slide the silicone
clevis retainer to the end of the clevises. Drill a 5/ 6 4" [2m m ]
hole in the outer hole in the servo arm and then se cure the
elevator pushrod wire to the servo with a nylon Faslink.

11

3. Install the rudder ser vo as shown using the har dware

❏

included with the servo. With the rudder in the neutral
position and the rudder servo arm perpendicular to the
pushrod, mark where the pushrod crosses th e outer hole of
the servo arm. As you did with the elevator pushrod, make a
90 degree bend at the mark and cut off the excess pushrod
1/4" [6.4mm] beyond the bend. Drill a 5 /64" [2mm ] hole in
the servo arm and then secure the pushrod to the servo arm
with a nylon FasLink. Make any adjustments necessar y to
the nylon clevis so that the rudd er is proper ly centered and
slide the silicone clevis retainer to the end of the clevis.

Assemble and Install

the Main Landing Gear

2. Cut the axles to a length of 1-1/2" [ 3 8mm ] . Sec ure

❏ ❏

the axles to the landing gear le gs using the 5 /16"-24 nylon
lock nuts.

3. Slide a 3/16" [4.8mm] wheel collar onto each axle

❏ ❏

followed by a 3-1 /4" [83mm] wheel and then another 3/16"
[4.8mm] wheel collar. Mark the locatio n of the threaded
holes in the wheel collars onto the axles. Use a fi le or
rotary tool such as a Dremel to grind fl at spots at the
marks on the axles.

1. A ttach the landing gear legs to the fuselage using four

❏

8-32 x 3/4" [19.1mm] SHCS, four #8 fl at washers, four #8
lock washers, and thread locking compound. When installed
properly the landing gear sweeps back.

4. Reinstall the wheel collars and wheels onto the

❏ ❏

axles. Thread a 6- 32 set screw into each wheel collar an d
tighten the set screws against the fl at spots on the axles. Be
sure that the wheel rotates freely on the ax le. Oil the axles
if necessary.

12

5. Attach the wheel pants to the landing gear legs

❏ ❏

using four 4-40 x 1/ 2" [12.7mm] machine screws, four #4
fl at washers, four #4 lock washers, and thread locking
compound. Adjust the wh eel and wheel collar s as needed,
to center the wheel in the wheel pant.

1. Using four 8-32 x 1" [25.4mm] SHCS, four #8

❏

fl at washers, four #8 lock washers, and thread locking
compound, attach the engine mount side-mounted to the
fi rewall so that the engine head will be on the right side.
Leave the screws slightly loose. T est fi t your engine between
the mount halves. Slide the mount halves against the sides
of the engine and fi nish tightening the mount screws.

INSTALL THE POWER SYSTEM

Glow Engine, Throttle Servo

and Fuel Tank Installation

The Revolv er .61 ARF is designed to be fl own with a .61 –75
two-stroke glow engine, .81–.91 four-stroke glow engine, or
a RimFire .80 (50-55-500) Outrunner Brushless motor. If
you plan to install a brushless motor, skip ahead to page 16
“Brushless Motor Installation”.

2. Position the front of the engine drive washer 5-11/16"

❏

[145mm] from the front of the engine mount ing box. Mark
the location of the engine mount ho les onto the mount rail s
using a Dead Center Hole Locator (GPMR8130). Remove
the engine from the mount and drill a 9/64" [3.6mm] or #29
hole through each of the marks you made in the landing
gear rails. Use an 8-32 tap to create threads in the four
mounting holes. Attach the engine to th e mount using four
8-32 x 3/4" [19.1mm] SHCS, four # 8 fl at washers, and four
#8 lock washers.

3. If you installed a two-stroke engine, attach a Pitts-

❏

style in-c owl muffl er. The stock muffl er could also be used,
but excessive cutting of the cowl would be neces sary. We
suggest using a Pitts-style muffl er.

13

4. Make a mark on the fi rewall that is aligned with the

❏

throttle arm and the throttle servo. On the mark drill a 3/16"
[4.8mm] hole. Locate the 12" [305mm ] plastic tube. Cut it
to a length of 7-3/4" [197mm] and roughen the end of the
tube with 180 grit sandpaper. Slide the tube into the hole
so the roughened end of the tube makes contact with the
fi rewall. Adjust the tube so it is aligned with the throttle
servo. Apply glue to the roughened end of the tube gluing
the tube to the fi rewall.

7. As semble the fuel sto pper as shown. The fuel system

❏

shown here is a three line system having a vent line, carb
line, and fi ll line. The rubber stopper has two open holes for
the aluminum tubing and one additio nal hole that you will
need to puncture above the sealed off fuel tube hole. The fi ll
and carb lines should extend out 1/2 " [12.7mm] beyond the
stopper and the vent line should be bent upwards and lef t
uncut. With the tubes installed in the stopper, fi t the stopper
plates loosely in place with the 3x25mm phillips screw to
hold the assembly together.

T

o

M

Fuel Tubing

u

b

r

a

C

o

T

l

l

i

F

r

o

t

e

r

e

n

i

L

u

f

f

l

e

r

5. Install Velcro through the forward slots as shown.

❏

6. Mount your throttle servo to the throttle servo tray

❏

with the hardware that came with the ser vo. Install a short
servo horn and then install a brass s crew lock c onnec tor in
the outer hole of the arm. Secure it to the arm wit h a nylon
retainer. Install a 4-40 x 1/4" [6.4mm] socket head cap screw
into the connector.

8. Fit the stopper assembly into the ta nk with the vent

❏

line pointing toward the top of the tank, but not touching.
The fuel tubing and clunks (fuel pic kup) on the c arb and fi ll
lines should almost reach the back of the tank but not touch.
The clunks must be able to move freely inside the tank when
assembled. Adjust the length of the fuel tubing accordingly.
When satisfi ed, tighten the 3x25mm screw in the stopper to
secure it in place (do not over-tighten). Mark the side of the
tank that must face up when installed in the plane. We also
suggest marking the tubes in the stopper.

9. Attach fuel tubing onto each line coming from the tank.

❏

Insert the tank into the fuselage with t he corre c t sid e fac ing
up. The fuel tubing should be routed through the hole in the
center of the fi rewall. Secure the t ank with the Velcro you
installed earlier.

14

10. Locate the plywood fuel tank support. Glue it in place

❏

behind the fuel tank as shown.

11 . Cut the fuel tubing coming from the tank to the proper

❏

length and connect the pressure and carb lines to the engine.
The fi ll line should be plugged with the inc luded aluminum
fuel line plug and able to hang free from the bottom of the
plane. Be sure to replace the fuel line plug after fi lling or
draining the fuel tank.

13. Install another brass screw lock connector, nylon

❏

retainer and 4-40 x 1/4" [6.4mm] set screw to the outer hole
of the throttle arm.

13. From inside of the fuselage, slide the opposite end
of the wire into the plastic tube you installed. As the wire
exits the fi rewall, slide the wire through the screw lock
connector. Temporarily tighten the set screw to the wire.
You will make the fi nal adjustments to this when you
fi nalize the radio installation.

12. Cut the threads off the end of the 2-56 x 12" [305mm]

❏

pushrod wire. Install one end of the wire into the screw
lock connector on the throttle servo. Apply thread locking
compound to the set screw and then t ighten the set screw
against the wire.

14. Position the throttle servo behind the fuel tank

❏

as shown. Drill a 1/16" [1.6mm] hole through each of the
mounting holes into the ply wood fl oor. Thread a #2 x 3 /8"
[9.5mm] screw through each h ole and back it out. Apply a
couple drops of thin CA glue to each hole to harden the
wood. When the glue has dried, install the servo tray.

15

Brushless Motor Installation

If you have installed a glow engine , skip this section as it only
contains information relevant to installing a brushless motor.

Be sure to read and understand the instructions that
come with the ESC and motor before attempting to
operate the system.

1. Attach the out-runner motor to the brushless motor mount

❏

using 3 x 8mm machine screws (included with the motor) and
thread locking compound. If you haven’t done so yet, install
the prop adapter to the motor case with the hardware included
with the motor and thread locking compound.

Complete the installation of the ESC to the receiver and
batteries and the motor to the ESC following the instructions
that came with them. Check for proper motor rotation without
the prop mounted.

5. Place one half of a self adhesive Velcro strip (not

❏

included) on t he fl oor of the battery tray. This will keep the
battery from sliding around. Install the Velcro straps through
the slots in the batter y tray. This will secure the batteries to
the battery tray.

2. Attach the motor mount to the fi rewall using four 8-32

❏

x 1/2" [13mm] SHCS, four #8 fl at washers, four #8 lock
washers, and thread locking compound.

3. Loosen the screws that hold the aluminum motor

❏

mount halves together and slide them in together so that
the front of the prop adapter is 5 -11/16" [144.5mm] from the
fi rewall. (Depending on the motor mount used you may fi nd
it necessary to shorten the length of the mount by cutting off
a short length of the aluminum mount arm). When adjusting
the mount, do not inadvertently create any up or down
motor thrust angle. Be sure that the center slots in the fro nt
and back motor mount halves are aligned together. Use
threadlocking com pound on the screws that join the motor
mount halves.

6. Place Velcro on your battery pack and then place your

❏

batteries onto the battery tray and secure them in place with
the Velcro straps.

4. Mount the ESC to the bottom of the fi rewall box as

❏

directed in the instructions with your particular brand of ESC.

7. Using a sharp hobby knife, cut the covering from the

❏

seven cooling slots on the underside of the fuselage.

16

FINISH THE MODEL

Install the Receiver

1. Make a strap from the included hook and loop material

❏

to fi t your receiver. Cut a piece of foam rubber (not included)
to fi t your receiver and then strap the receiver in front of the
servos as shown. We have installed a 2.4GHz receiver and
secured our antenna leads with scrap plastic tube. If you will
be installing a conventional 72MHz receiver we have pre­installed a plastic tube for your antenna. It is located behind
the servo tray on the right side of the fuselage.

3. Pre-cut openings are provided on both sides of the

❏

fuselage for mounting an on/ of f switc h. The hole s pacing i s
made for a Futaba mini switch harness. If you are using a
different switch, you may need to modify the pre-cut opening,
or mount it in a different locatio n. An optional charge jack
receptacle can be mounted below the switch.

2. Connect the servos to the receiver following the

❏

instructions with your radio system. If you are installing an
electric power system, depending on the ESC being used,
you may need a servo extension to reach the receiver.

4. We have provided two dif ferent locations for mounting

❏

the receiver battery. With the O.S .91 four stroke engine
installed, our plane balanced with the battery inst alled on
the fi rewall box. We have also provided a mounting location
next to the receiver. Install the battery where it best balances
the airplane. If you mount the battery on the fi rewall box,
install the battery on a p iece of foam and hold it in place
with rubber bands. You will need a 12" [30 5mm] extension
on the battery lead to reach the receiver. If you mount it next
to the receiver, secure the receiver with the Velcro included
with the airplane.

17

Install the Cowl

1. Before fi tting the cowl, make any cutouts necessary for

❏

your power system. If you are installing a glow engine, a cut
out must be made for the engine head, exhaust outlets, and
needle valve access. A rotary too l such as a Dremel wor ks
very well for cutting holes in fi berglass.

2. Apply a piece of masking tape to each side of

❏

the fuselage in the location shown. From the center of
the cowl mounting block draw a line back towards the
fuselage 1" [25.4mm].

Install the Canopy Hatch,

Pilot and Spinner

3. Fit the cowl to the fuselage and align it with the color s

❏

on the fuselage. Temporarily install the spinner bac k plate
onto the motor shaft and m ake any adjustment s to th e cowl
position so that the back plate is centered with the fro nt of
the cowl. When satisfi ed, tape the cowl into position. Using
the lines you made as a reference, measure 1" [25.4mm]
forward from the end of the line and m ake a mark on the
cowl. Drill 1/1 6" [1.6mm] holes at the marks you made on the
cowl through the cowl mounting blocks. Dr ill one hole at a
time; insert a #2 x 1/2" [1 2.7 mm] screw in the hole you drilled
and then proceed with the remaining three holes. Adjust the
cowl as needed before drilling each new hole.

1. A pilot is included that can be installed from the back of

❏

the canopy. Y ou can apply a bead of glue to the bottom edge
of the pilot to secure it in place or you can ac hieve a more
secure installation by gluing a plywood plate (not included)
to the bottom of the pilot and then glue the pilot to the inside
of the canopy. Choose your mounting method and install the
pilot in the canopy.

2. Secure the canopy to the fuselage with two 4-40 x 3/4"

❏

[19.1mm] machine screws, t wo #4 fl at washers, and two # 4
lock washers.

3. Install the spinner back plate onto the motor shaft. Use

❏

the included bushing (if needed) to fi t the engine crankshaft.
Install the propeller and threaded spinner nut t hat matches
your shaft thread size.

4. Install the spinner cone onto the back plate with the 4

❏

x 35mm SHCS.

Apply the Decals

4. Remove the cowl and thread a #2 x 1/2" [12.7 mm] self-

❏

tapping screw into each hole in the c owl mounting blocks
and back it out. Apply a couple drops of thin CA to each hole
in the blocks. When the glue hard ens, install the cowl onto
the fuselage using four #2 x 3 /8 " [9.5mm] screws, four # 2
fl at washers, and four #2 lock washers.

Refer to the box photos for placement of the decals.

1. Use scissors or a sharp hobby knife to cut the de cals

❏

from the sheet.

2. Be certain the model is clean and free from oily

❏

fi ngerprints and dust. Prepare a dishpan or small bucket with

18

a mixture of liquid dish soap and warm water—about one
teaspoon of soap per gallon of water. Submerse the decal
in the soap and water and peel off the paper backing. Note:
Even though the decals have a “sticky-back” and are not the
water transfer type, submersing them in soap & water allows
accurate positioning and reduces air bubbles underneath.

3. Position decal on the model where desired. Ho lding

❏

the decal down, use a paper towel to wipe most of the
water away.

4. Use a piece of soft balsa or something similar to

❏

squeegee remaining water from under the decal. Apply th e
rest of the decals the same way.

GET THE MODEL READY TO FLY

Install and Operate the Motor Battery

IMPORTANT: If using multiple battery packs that are
connected with an adapter, never charge the batteries
together through the adapter. Always charge each battery
pack separately. Charge the batteries, then read the
following precautions on how to connec t multiple packs for
fl ying the model:

3. Make certain that the control surfaces and the carburetor

❏

respond in the correc t direction as shown in the diagram.
If any of the controls respond in the wrong direction, use
the servo reversing in the transmitter to reverse the ser vos
connected to those controls. Be certain the control surfaces
have remained centered. Adjust if necessary.

Set the Control Throws

Use a Great Planes AccuThrow (or a ruler) to accurately
measure and set the control throw of each co ntrol surface
as indicated in the char t that follows. If your radio does not
have dual rates, we recommend setting the throws at the
low rate setting.

BATTERY PRECAUTIONS

There are two ways to connect multiple battery packs: In
Series and in Parallel.

1. Connecting batteries in “Series” means to connect the
(+)’s to the (–)’s and the (– ) ’s to the (+)’s. This combines the
voltages of the batteries, but the capacity remains the same.

2. Connecting batteries in “Parallel” means to connect
the (+)’s to the (+)’ s and the (-)’s to the (-)’s. This combines
the capacities of the batteries, but the voltage remains
the same.

NEVER connect battery packs with different voltages in
parallel! Only combine them in series. Otherwise, the
batteries with lower voltage will try to “equalize” with the
batteries that have a higher voltage. Current will fl ow from
the higher voltage battery into the lower one, essentially
“charging” the lower voltage battery pack. This situation will
likely cause heat and possibly a fi re.

NEVER connect battery packs with different capacities in
series or in parallel.

Check the Control Directions

These are the recommended control surface throws:

HIGH RATE LOW RATE

Up

ELEVATOR

RUDDER

AILERONS

NOTE: The throws are measured at the widest part of the
elevators, rudder and ailerons.

3/4"

[19mm]

10 deg

Right

2-1/2"

[64mm]

22 deg

Up

1/2"

[13mm]

12 deg

Down

3/4"

[19mm]

10 deg

Left

2-1/2"

[64mm]

22 deg

Down

1/2"

[13mm]

12 deg

Up

5/16"

[8mm]

5 deg

Right

1-1/2"

[38mm]

13 deg

Up

1/4"

[6mm]

6 deg

Down

5/16"

[8mm]

5 deg

Left

1-1/2"

[38mm]

13 deg

Down

1/4"

[6mm]

6 deg

1. Turn on the transmitter and receiver and center the

❏

trims. If necessar y, remove the servo arms from the ser vos
and reposition them so they are centered. Reinstall the
screws that hold on the servo arms.

2. With the transmitter and receiver still on, check

❏

all the control surfaces to see if they are centered. If
necessary, adjust the clevises on the pushrods to center
the control sur faces.

IMPORTANT: The Revolver ARF has been extensively
fl own and tested to arrive at the throws at which it fl ies
best. Flying your model at these throws will provide you
with the greatest chance for successful fi rst fl ights. If, after
you have become accustomed to the way the Revolver
fl ies, you would like to change the throws to suit your taste,
that is fi ne. However, too mu ch control throw could make
the model diffi cult to control, so remember, “more is not
always better.”

19

Balance the Model (C.G.)

More than any other factor, the C.G. (balance point) can
have the greatest effect on how a model fl ies, and may
determine whether or not your fi rst fl ight will be successful.
If you value this model and wish to enjoy it for many fl ights,
DO NOT OVERLOOK THIS IMPORTANT PROCEDURE.
A model that is not properly balanced will be unstable and
possibly unfl yable.

At this stage the model should b e in ready-to-fl y condition
with all of the systems in place including the engine or
brushless motor, landing gear, and the radio system (and
battery pack if applicable).

1. Use a felt-tip pen or 1/8" [3mm]-wide tape to accurately

❏

mark the C.G. on the top of the wing on both sides of the
fuselage. The C.G. is located 5-1/2" [139.7mm] back from

the leading edge of the wing at the fuselage.

This is where your model should balance for the fi rst fl ights.
Later, you may wish to experiment by shifting the C.G. up to
1/2" [12.7mm] forward or 1/2" [12.7mm] back to change the
fl ying characteristics. Moving the C.G. forward may improve
the smoothness and stability, but the model may then
require more speed for takeoff and make it more diffi cult
to slow for landing. Moving the C.G. aft makes the model
more maneuverable, but could also cause it to beco me too
diffi cult to control. In any case, start at the re comme nde d
balance point and do n ot at any time balance the mode l
outside the specifi ed range.

2. With the wing attached to the fuselage, all parts of the

❏

model installed (ready to fl y) and an empty fuel tank, place
the model upside - down on a Great Planes CG Machine, or
lift it upside-down at the balance point you marked.

3. If the tail drops, the model is “tail heavy” and the battery

❏

pack and/or receiver must be shifted forward or weight must
be added to the nose to balance. If the nose drops, the
model is “nose heavy” and the batter y pack and/or receiver
must be shifted af t or weight must be added to the tail to
balance. If possible, relocate the batter y pack and receiver
to minimize or eliminate any additional ballast required. If
additional weight is required, nose weight may be easily
added by using a “spinner weight ” (GPMQ4645 for the 1
oz. [28g] weight, or GPMQ46 46 for the 2 oz. [57g] weight).
If spinner weight is not practical or is not enough, use Great
Planes (GPMQ4485 ) “stick-on” lead. A good place to add

stick-on nose weight is to the fi rewall (don’t attach weight
to the cowl– it is not intended to suppor t weight). Begin by
placing incrementally increasing amounts of weight on the
bottom of the fuse over the fi rewall until the model balances.
Once you have determined the amount of weight required,
it can be permanently attac hed. If required, tail weig ht may
be added by cutting o pen th e bottom of the fuse and gluing
it permanently inside.

Note: Do not rely upon the adhesive on the back of the lead
weight to permanently hold it in place. Over time, fuel and
exhaust residue may soften the adhesive and cause the
weight to fall off. Use #2 she et metal screws, RTV sili cone
or epoxy to permanently hold the weight in place.

4. IMPORTANT: If you found it necessary to add any

❏

weight, recheck the C.G. after the weight has been installed.

Balance the Model Laterally

1. With the wing level, have an assistant help you lift the

❏

model by the engine propeller shaf t and the bottom of the
fuse under the TE of the fi n. Do this several times.

2. If one wing always drops when you lift the model,

❏

it means that side is heavy. Balance the airplane by
adding weight to the other wing tip. An airplane that

has been laterally balanced will track better in loops
and other maneuver s.

PREFLIGHT

Identify Your Model

No matter if you fl y at an AMA sanctioned R /C club site
or if you fl y somewhere on your own, you should always
have your name, address, telephone number and AMA
numbe r on or inside your mode l. It is re quire d at all AMA
R/ C club fl ying sites and AMA sancti oned fl ying events.
Fill out the identifi cation tag on page 24 and place it on or
inside your model.

Charge the Batteries

Follow the battery charging instructions that came with you r
radio control system to charge the batteries. You should
always charge your transmitter and receiver batteries the
night before you go fl ying, and at other times as recommended
by the radio manufacturer.

CAUTION: Unless the instructions that came with your
radio system state differently, the initial charge on new
transmitter and receiver batteries should be do ne for 15
hours using the slow-charger that came with the radio
system. This will “condition” the batteries so that the
next charge may be done using the fast- charger of your
choice. If the initial charge is done with a fast-charger the
batteries may not reach their full capacity and you may be
fl ying with batteries that are only partially charged.

20

Balance Propellers

Carefully balance your propeller and spare propellers
before you fl y. An unbalanced prop can be the single
most signifi cant cause of vibration that can damage your
model. Not only will engine mounting screws and bolts
loosen, possibly with disa strous effect, but vibration may
also damage your radio receiver and battery. Vibration can
also cause your fuel to foam, which will, in turn, cause your
engine to run hot or quit.

We use a Top Flite Precision Magnetic Prop Balancer
(TOPQ5700) in the workshop and keep a Great Planes
Fingertip Prop Balancer (GPMQ5000) in our fl ight box.

Ground Check

If the engine is new, follow the engine manufacturer’s
instructions to break-in the engine. After break-in,

confi rm that the engine idles reliably, transitions smoothly
and rapidly to full power and maintains full power—
indefi nitely. After you run the engine on the model, inspect
the model closely to make sure all screws remained tight,
the hinges are secure, the prop is secure and all pus hro ds
and connectors are sec ure.

Range Check

● Do not run the engine in an area of loose gravel or
sand; the propeller may throw such material in your
face or eyes.

● Keep your face and body as well as all spectators away
from the plane of rotation of the propeller as you star t
and run the engine.

● Keep these items away from the prop: loose clothing,
shirt sleeves, ties, scarves, long hair or loose objects
such as pencils or screwdrivers that may fall out of shirt
or jacket pockets into the prop.

● Use a “chicken stick” or electric starter to start the
engine. Do not use your fi ngers to fl ip the propeller.
Make certain t he glow plug clip o r conne ctor is secure
so that it will not pop off or otherwise get into the
running propeller.

● Make all engine adjustments from behind the rotating
propeller.

● The engine gets hot! Do not touch it during or right after
operation. Make sure fuel lines are in good condition so
fuel will not leak onto a hot engine, causing a fi re.

● To stop a glow engine, cut off the fuel supply by closing
off the fuel line or following the engine manufacturer ’s
recommendations. Do not use hands, fi ngers or any
other body part to try to stop the engine. To stop a
gasoline powered engine an on/off switch should be
connected to the engine coil. Do not throw anything into
the propeller of a running engine.

Ground check the operational range of your radio before the
fi rst fl ight of the day. With the transmitter antenna collapsed
and the receiver and transmitter on, you should be ab le to
walk at least 100 feet [30m] away from the model and still
have control. Have an assistant stand by your model and,
while you work the controls, tell you what the control surfaces
are doing. Repeat this test with the engine running at
various speeds with an assistant holding th e model, using
hand signals to show you what is happening. If the control
surfaces do not respond correctly, do not fl y! Find and
correct the problem fi r st. Look for loose ser vo connections
or broken wires, corroded wires on old ser vo connectors,
poor solder joints in your batter y pac k or a d efective cell, or
a damaged receiver crystal from a previous crash.

ENGINE SAFETY PRECAUTIONS

Failure to follow these safety precautions may result in
severe injury to yourself and others.

● Keep all engine fuel in a safe place, away from high
heat, sparks or fl ames, as fuel is very fl ammable. Do
not smoke near the engine or fuel; and rememb er that
engine exhaust gives off a great deal of deadly carb on
monoxide. Therefore do not run the engine in a closed
room or garage.

● Get help from an experienced pilot when learning to
operate engines.

● Use safety glasses when starting or running engines.

LITHIUM BATTERY

HANDLING & USAGE

WARNING!! Read the entire instruction sheet included with
the battery. Failure to follow all instructions could cause
permanent damage to the battery and its surroundings, and
cause bodily harm!

● ONLY use a LiPo approved charger. NEVER use a
NiCd/NiMH peak charger!

● NEVER charge in excess of 4.20V per cell.

● ONLY charge through the “charge” lead. NEVER

charge through the “discharge” lead.

● NEVER charge at currents greater than 1C.

● ALWAYS set charger’s output volts to match battery

volts.

● ALWAYS charge in a fi reproof location.

● NEVER trickle charge.

● NEVER allow battery temperature to exceed 150° F

(65° C).

● NEVER disassemble or modify pack wiring in any way
or puncture cells.

● NEVER discharge below 2.5V per cell.

● NEVER place on combustible materials or leave

unattended during charge or discharge.

● ALWAYS KEEP OUT OF REACH OF CHILDREN.

21

Install and Connect the Motor Battery

Before you can power the radio system and set up the
controls, the motor batteries will need to be charged.

IMPORTANT : If using multiple battery packs that are
connected with an adapter, never charge the batteries
together through the adapter. Always charge each battery
pack separately. Charge the batteries, then read the
following precautions on how to connec t multiple packs for
fl ying the model:

BATTERY PRECAUTIONS: There are t wo ways to connect
multiple battery packs: In Series and in Parallel.

1. Connecting batteries in “Series” means to connect the +’s
to the –’s and the –’s to the +’s. This combines the battery’s
Voltages, but the capacity remains the same.

These are two 3200mAh batteries (one 11.1V and the other 7.4V).

When joined in SERIES, the result will be a 18.5V, 3200 mAh battery.

11.1V (3-Cell)
3200mAh

7.4V (2-Cell)
3200mAh

This is a SERIES battery adapter

OKAY

(GPMM3143) that connects

two batteries in series.

It’s okay to connect batteries with different voltages in

series to achieve the new, desired voltage.

2. Connecting batteries in “Parallel” means to conne ct the
+’s to the +’ s and the -’s to the -’ s. This combines the battery’s
capacities, but the Voltage remains the same.

These two 1500mAh batteries (both 11.1V) are being joined

in PARALLEL. The result will be one 11.1V, 3000mAh battery.

11.1V (3-Cell)
1500mAh

OKAY

11.1V (3-Cell)
1500mAh

This is a PARALLEL battery adapter

(GPMM3142) that connects

two batteries in parallel.

NEVER connect battery packs with different Voltages in
Parallel–only combine in Series. Otherwise, the batteries
will try to “equalize” with the larger one trying to “charge” the
smaller one, thus causing heat and likely a fi re.

11.1V (3-Cell)

Different
voltages

3200mAh

7.4V (2-Cell)
3200mAh

NO!!!

PARALLEL adapter

Also NEVER connect battery packs with different capacities
in Series or in Parallel.

11.1V (3-Cell)
3200mAh

Different

capacities

11.1V (3-Cell)
1250mAh

NO!!!

AMA SAFETY CODE (EXCERPTS)

Read and abide by the following excerpts from the Academy
of Model Aeronautics Safety Code. For the complete Safety
Code refer to Model Aviation magazine, the AMA web site or
the Code that came with your AMA license.

GENERAL

1) I will not fl y my model aircraft in sanctioned events,
air shows, or model fl ying demonstrations until it has
been proven to be airworthy by having been previously,
successfully fl ight tested.

2) I will not fl y my model aircraft higher than approximately
400 feet within 3 miles of an airport without notifying the
airport op erator. I will give right-of-way and avoid fl ying in
the proximity of full-scale aircraft. Where necessary, an
observer shall be utilized to supervise fl ying to avoid having
models fl y in the proximity of full-scale aircraft.

3) Where established, I will a b i de by the safety rules for the
fl ying site I use, and I will not willfully and deliberately fl y my
models in a careless, reckless and/or dangerous manner.

5) I will not fl y my model unless it is identifi ed with my name
and address or AMA number, on or in the model. Note: This
does not apply to models while being fl own indoors.

7) I will not operate models with pyrotechnics (a ny device
that explodes, burns, or propels a projectile of any kind).

RADIO CONTROL

1) I will hav e completed a successful radio equipment ground
check before the fi rst fl ight of a new or repaired model.

2) I will not fl y my model aircraft in the presence of spectators
until I become a qualifi ed fl ier, unless assisted by an
experienced helper.

3) At all fl ying sites a straight or curved line(s) must be
established in front of which all fl ying takes place with th e
other side for spectators. Only personnel involved with fl ying
the aircraft are allowed at or in the front of the fl ight line.
Intentional fl ying behind the fl ight line is prohibited.

4) I will operate my model using only radio control frequencies
currently allowed by the Federal Communications
Commission.

22

5) I will not knowingly op erate my model within three

miles of any pre-existing fl ying site except in accordance
with the frequency sharing agreement listed [in the

complete AMA Safety Code].

9) Under no circumstances may a pilot or other person
touch a powered model in fl ight; nor should any part of the

model other t han the landing gear, intentionally touch
the ground, except while landing.

CHECK LIST

During the last few moments of preparation your mind may
be elsewhere anticipating the excitement of the fi rst fl ight.
Because of this, you may be more likely to overlook cer tain
checks and procedures that should be performed bef ore the
model is fl own. To help avoid this, a check list is provided to
make sure these important areas are not overlooked. Ma ny
are covered in the instruction manual, so where appropriate,
refer to the manual for complete instructions. Be sure to
check the items off as they are completed.

1. Check the C.G. according to the measurements

❏

provided in the manual.

2. Be certain the battery and receiver are securely

❏

mounted in the fuse. Simply stuffi ng them into place
with foam rubber is not suffi cient.

3. Extend your receiver antenna.

❏

4. Balance your model laterally as explained in

❏

the instructions.

5. Use thread locking compound to secure critical

❏

fasteners such as the set screws that hold the wheel
axles to the struts, screws that hold the carburetor arm
(if applicable), screw-lock pushrod connectors, etc.

6. Add a drop of oil to the axles so the wheels will

❏

turn freely.

7. Make sure all hinges are securely glued in place.

❏

8. Reinforce holes for wood screws with thin CA where

❏

appropriate (servo mounting screws, cowl mounting
screws, etc.).

9. Confi rm that all controls operate in the correct direction

❏

and the throws are set up according to the manual.

10. Make sure there are silicone retainers on all the

❏

clevises and that all servo arms are se cured to the
servos with the screws included with your radio.

11. Secure connections between servo wires and

❏

Y-connectors or servo extensions, and the connection
between your battery pack and the on/off switch with
vinyl tape, heat shrink tubing or special clips suitable
for that purpose.

12. Make sure any servo extension cords you may have

❏

used do not interfere with other systems (servo arms,
pushrods, etc.).

13. Secure th e pressure tap ( if used ) to the muffl er with

❏

high temp RTV silicone, threadlocking compound or
J.B. Weld.

14. Make sure the fuel lines are connected and are

❏

not kinked.

15. Balance your propeller (and spare propellers).

❏

16. Tighten the propeller nut and spinner.

❏

17. Place your name, address, AMA number and

❏

telephone number on or inside your model.

18. Cycl e your receiver battery pack ( if necessar y) and

❏

make sure it is fully charged.

19. If you wish to photograph your model, do so before

❏

your fi rst fl ight.

20. Range check your radio when you get to the

❏

flying field.

FLYING

The Revolver .61 ARF is a great-fl ying model that fl ies
smoothly and predictably. The Revolver does not, however,
possess the self-recover y characteristics of a prim ary R /C
trainer and should be fl own only by experienced R/C pilots.

Fuel Mixture Adjustments

A fully cowled engine may run at a higher temperature than
an un-cowled engine. For this reason, the fuel mixture should
be richened so the engine runs at about 200 rpm below
peak speed. By running the engine slightly rich, you will help
prevent dead-stick landings caused by overheating.

CAUTION (THIS APPLIES TO ALL R/C AIRPLANES):
If, while fl ying, you notic e an alarming or unusual sound
such as a low-pitched “buzz,” this may indicate control
surface fl utter. Flutter occurs when a control surface (such
as an aileron or elevator) or a fl ying surface (suc h as a
wing or stab) rapidly vibrates up and down (thus c ausing
the noise). In extreme cases, if not detected immediately,
fl utter can actually cause the control surface to detach
or the fl ying sur face to fail, thus causing loss of control
followed by an impending crash. The best thing to do
when fl utter is detected is to slow the model immediately
by reducing power, then land as soon as safely possible.
Identify which surface fl uttered (so the problem may
be resolved) by checking all the servo grommets for
deterioration or signs of vibration. Make certain all pushrod
linkages are secure and free of play. If it fl uttered onc e,
under similar circumstances it will prob ably fl utter again
unless the problem is fi xed. Some things which can cause
fl utter are; Excessive hinge gap; Not mounting control
horns solidly; Poor fi t of clevis pin in horn; Side -play of
wire pushrods caused by large bends; Excessive free play
in servo gears ; Insecure servo mounti ng; and one of t he
most prevalent causes of fl utter; Flying an over-powered
model at excessive speeds.

23

Takeoff

Before you get ready to takeoff, see how the model handles
on the ground by doing a few practice runs at low speeds
on the runway. Hold “up” elevator to keep the tail wheel o n
the ground. If necessary, adjust the tail wheel so the model
will roll straight down the runway. If you need to calm your
nerves before the maiden fl ight, shut the engine down and
bring the model back into the pits. Top off the fuel, then
check all fasteners and control linkages for peace of mind.

Remember to takeoff into the wind. When you’re ready,
point the model straight down the runway, hold a bit of
up elevator to keep the tail on the ground to maintain tail
wheel steering, then gradually advance the t hrottle. As the
model gains speed de c rease up elevator allowing the tail to
come off the ground. O ne of the most important things to
remember with a tail dragger is to always be ready to apply
right rudder to counteract engine torque. Gain as much
speed as your runway and fl ying site will practically allow
before gently applying up elevator, lifting the model into the
air. At this moment it is likely that you will need to apply more
right rudder to counteract eng ine torque. Be smooth on th e
elevator stick, allowing the model to establish a gentle climb
to a safe altitude before turning into the traffi c pattern.

Flight

For reassurance and to keep an eye on other traffi c, it is a
good idea to have an assistant on the fl ight line with you. Tell
him to remind you to throttle back once th e plane gets to a
comfortable altitude. While full throttle is usually desirable for
takeoff, most models fl y more smoothly at reduced speeds.

Take it easy with the Revolver for the fi rst few fl ights,
gradually getting acquainted with it as you gain confi dence.
Adjust the trims to maintain straight and level fl ight. If you
have powered the airplane with a .61 [10cc] engine, you will
fi nd the plane fast, but not so fast to get yourself in trouble. If
you have powered it with a .75 [12.5cc] engine, the airplane
becomes very fast so be sure to g et fully acquainted with
how it performs before attempting com plex maneuvers that
could get you into trouble. After fl ying around for a while and
while still at a safe altitude with plenty of fuel, practice slow
fl ight and execute practice landing approaches by reducing
the throttle to see how the model handles at slower speeds.
Add power to see how the model climbs as well. Continue to
fl y around, executing various maneuvers and making mental
notes (or having your assistant write them down) of what trim
or C.G. changes may be required to fi ne tune the model so
it fl ies the way you like. Mind your fuel lev el, but use this fi rst
fl ight to become familiar with your model before landing.

Landing

The Revolver is a very clean airframe. Bec ause of thi s, you
will fi nd that it takes longer to slow the plane for landing
than some other airplanes you have fl own. Be prepared for

this and don’t be surprised if you have to go around and
set up for your landing a second time. Practice your landing
approach at a higher altitude over the runway to familiarize
yourself with the low speed characteristics of the plane.
To initiate a landing approach, lower the throttle while on
the downwind leg. Allow the nose of the model to pitch
downward to gradually bleed of f altitude. Continue to lose
altitude, but maintain airspeed by keeping the nose down
as you turn onto the crosswind leg. Make your fi nal turn
toward the runway (into the wind) keeping the nose down to
maintain airspeed and control. Level the attitude when the
model reaches the runway threshold, modulating the throttle
as necessar y to maintain your glide path and airspeed. If
you are going to overshoot, smoothly advance the t hrottle
(always ready on the right rudder to c ounteract torque ) and
climb out to make another attempt. When you’re ready to
make your landing fl are and the model is a foot or so off the
deck, smoothly increase up elevator until it gently touches
down. Once the model is o n the runway and has lost fl ying
speed, hold up elevator to place the tail on the ground,
regaining tail wheel control.

One fi nal note about fl ying your model. Have a goal or fl ight
plan in mind for every fl ight. This can be learning a new
maneuver(s), improving a maneuver( s) you already know,
or learning how the model behaves in certain conditions
(such as on high or low rates). This is not necessarily to
improve your skills (though it is never a bad idea!), but more
importantly so you do not sur prise yourself by impulsively
attempting a maneuver and suddenly fi nding that you’ve run
out of time, altitude or airspeed. Every maneuver should
be deliberate, not impulsive. For example, if you’re going
to do a loop, check your altitude, mind the wind direction
(anticipating rudder corrections that will be required to
maintain heading), remember to throttle back at the top, and
make certain you are on the desired rates (hig h / low rates).
A fl ight plan greatly reduces the chance s of crashing your
model just because of po or planning and impulsive moves.

Remember to think.

Have a ball!

But always stay in control

and fl y in a safe manner.

GOOD LUCK AND GREAT FLYING!

Name

Address

City, State, Zip

This model belongs to:

24

AMA Number

Phone Number