Great Planes GPMA1550 User Manual

INSTRUCTION MANUAL

Wingspan: 41 in [1040mm]
Wing Area: 353 in
Weight: 29 – 32 oz [820 – 910g]
Wing Loading: 11.8 – 13.1 oz/ft2 [36 – 40g/dm2]
Length: 39.5 in [1005mm]
Radio: 4-channel minimum with micro receiver
Motor: RimFire™ 35-30-1250 out-runner

2

[22.8dm2]

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 modifi cation. 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 fi nal assembly or
material used for fi nal assembly, no liability shall be assumed nor
accepted for any damage resulting from the use by the user of
the fi nal user-assembled product. By the act of using the user­assembled 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
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 n umber,
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.

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 2008 GPMZ1550 for GPMA1550 V1.0

TABLE OF CONTENTS

AMA

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

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

SAFETY PRECAUTIONS ......................................................2

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

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

Motor Recommendation ...................................................3

Propeller ...........................................................................3

Electronic Speed Control ..................................................3

Battery Pack ......................................................................3

Required Adhesives & Building Supplies ..........................4

Optional Supplies & Tools .................................................4

IMPORTANT BUILDING NOTES ...........................................4

ORDERING REPLACEMENT PARTS ...................................4

COMMON ABBREVIATIONS ................................................5

METRIC CONVERSIONS ......................................................5

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

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

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

ASSEMBLE THE WING P ANELS ..........................................7

INST ALL THE WING P ANELS ...............................................9

ASSEMBLE THE T AIL SECTION ........................................10

INSTALL THE TAIL SERVOS & PUSHRODS ......................12

INSTALL THE LANDING GEAR ..........................................13

MOUNT THE MOTOR, ESC & RECEIVER ..........................14

INSTALL THE COWL, CANOPY & SPINNER .....................16

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

GET THE MODEL READY TO FLY ......................................18

Check the Control Directions ..........................................18

Set the Control Throws ...................................................18

Balance the Model (C.G.) ...............................................19

Balance the Model Laterally............................................19

PREFLIGHT .........................................................................19

Identify Your Model ..........................................................19

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

Balance Propellers ..........................................................20

Range Check ..................................................................20

MOTOR SAFETY PRECAUTIONS ......................................20

LITHIUM BATTERY HANDLING & USAGE ........................20

AMA SAFETY CODE (excepts) ..........................................21

CHECK LIST ........................................................................21

FLYING .................................................................................22

Takeoff ............................................................................22

Flight ...............................................................................22

Landing ...........................................................................22

3D FLYING ...........................................................................23

INTRODUCTION

Congratulations on your purchase of the Great Planes
E-Performance Edge 540 EP ARF! Like the other models in
the E-Performance line, the Edge 540 EP ARF will deliver
the precision performance that 3D pilots are looking for. It’s
a great sport plane for the casual fl ier. As a new feature,
the Edge 540 EP ARF is designed with removable wing
panels around a carbon fi ber wing tube for transporting
convenience. The wingspan of the Edge 540 EP ARF will,
however, allow the plane to fi t into most vehicles without
removing the wings.

For the latest technical updates or manual corrections to
the Edge 540 EP ARF, visit the Great Planes web site at
www.greatplanes.com. Open the “Airplanes” link, then select
the Edge 540 EP ARF. If there is new technical information or
changes to this model a “tech notice” box will appear in the upper
left corner of the page.

We urge you to join the AMA (Academy of Model Aeronautics)
and a local R/C club. The AMA is the gov erning 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 ev en 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 countr y. Contact the
AMA at the address or toll-free phone number below:

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN 47302-9252

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-scale aircraft and avoid fl ying near or over
groups of people.

PROTECT YOUR MODEL, YOURSELF

& OTHERS....FOLLOW THESE

IMPORTANT SAFETY PRECAUTIONS

1. Your Edge 540 EP 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 performance
capabilities, the Edge 540 EP ARF, if not assembled and
operated correctly, could possibly cause injury to yourself or
spectators and damage to property.

2. Y ou must assemble the model accor ding to the instructions.
Do not alter or modify the model, as doing so may result in an
unsafe or unfl yable model. In a few cases the instructions ma y
differ slightly from the photos. In those instances the wr itten
instructions should be considered as correct.

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

4. You must use an R/C radio system that is in fi rst-class
condition, and a correctly sized motor and components
throughout the building process.

5. You must correctly install all R/C and other components
so that the model operates correctly on the ground and in
the air.

2

6. You must check the operation of the model 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 connectors often and replace 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 model 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.

❏ Futaba R114F FM Micro Receiver (Low Band – FUTL0442,

High Band – FUTL0443)

❏ Futaba FM Single Conversion Short Crystal (Low Band –

FUTL62**, High Band – FUTL63**)

❏ (2) Futaba C-25 Extension Slim Wire 150mm (FUTM4506)
❏ (2) Futaba 16" [400mm] Servo Extension Futaba

J (FUTM3955)

❏ Futaba 6" Dual Servo Extension J (FUTM4130)

Motor Recommendation

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 a motor 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 included in this kit is made of
fi berglass, the fi bers of which may cause eye, skin and
respiratory tract irritation. Never blow into a part to remove
fi berglass dust, as the dust will blow back into your eyes.
Always wear safety goggles, a particle mask and rubber
gloves when grinding, drilling and sanding fi berglass parts.
V acuum the parts and the work area thoroughly after working
with fi berglass parts.

We, as the kit manuf acturer, provide 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.

The recommended motor for the Edge 540 EP ARF is:

❏ Great Planes RimFire

Out-runner Motor (GPMG4595)

Note: Motors from other manufacturers may work with the
Edge 540 EP ARF, however the included motor mounting
components are designed to work specifi cally with the Great
Planes motor listed.

™

35-30-1250kV Brushless

Propeller

The recommended propeller for the Edge 540 EP ARF when
using the Great Planes RimFire 35-30-1250kV motor is:

❏ APC 10" x 7 Thin Electric Propeller (APCQ4123)

Electronic Speed Control

A brushless electronic speed control (ESC) is required for
this plane. We recommend using the Great Planes Silver
Series 35A Brushless ESC 5V/2A BEC (GPMM1830).

DECISIONS YOU MUST MAKE

This is a partial list of items required to fi nish the Edge 540
EP ARF that may require planning or decision making before
starting to build. Order numbers are provided in parentheses.

Radio Equipment

A 4-channel radio system with four micro servos and a micro
receiver are required for this plane. The servos and receiver
shown in the manual are Futaba® S3114 micro servos and
the Futaba R114F micro receiver. Two 6" [150mm] servo
extensions, two 16" [400mm] servo extensions, and a
Y-harness are also required. Order numbers for these items
are provided below.

❏ (4) Futaba S3114 Micro High Torque Servo

7.7g (FUTM0414)

Battery Pack

The Edge 540 EP ARF has been tested with 11.1V LiPo
packs ranging from 1250mAh to 2100mAh. Order numbers
are provided for packs of this siz e. The lighter 1250mAh pack
is suggested for maximum performance.

❏ Great Planes LiPo 1250mAh 11.1V 20C Discharge

w/Balance (GPMP0609)

❏ Great Planes LiPo 1500mAh 11.1V 20C Discharge

w/Balance (GPMP0613)

❏ Great Planes LiPo 2100mAh 11.1V 20C Discharge

w/Balance (GPMP0617)

Note: Do not use Great Planes LiPo 1500mAh 11.1V 3S 8C
Discharge (GPMP0831). This battery pack is not capable
of supporting the current draw of the recommended
power systems.

3

Required Adhesives & Building Supplies

This is the list of adhesives and building supplies required
to fi nish the Edge 540 EP ARF. Order numbers are provided
in parentheses.

❏ 1/2 oz. [15g] Thin Pro

™

CA (GPMR6001)

❏ 1/2 oz. [15g] Medium Pro CA+ (GPMR6007)
❏ Pro 30-minute epoxy (GPMR6047)
❏ Denatured alcohol
❏ Drill bits: 1/8" [3mm]
❏ #1 Hobby knife (HCAR0105)
❏ #11 Blades (5-pack, HCAR0211)
❏ Hobbico

®

Steel T-Pins 1" (100) (HCAR5100)

❏ Great Planes Pro Threadlocker (GPMR6060)
❏ CA applicator tips (HCAR3780)
❏ 220-grit Sandpaper

Optional Supplies & Tools

Here is a list of optional tools that will help you build the
Edge 540 EP ARF.

❏ 21st Century

®

sealing iron (COVR2700)

❏ 21st Century iron cover (COVR2702)
❏ 2 oz. [57g] Spray CA activator (GPMR6035)
❏ 4 oz. [113g] Aerosol CA activator (GPMR6034)
❏ CA debonder (GPMR6039)
❏ Epoxy brushes (6, GPMR8060)
❏ Mixing sticks (50, GPMR8055)
❏ Mixing cups (GPMR8056)
❏ Panel line pen (TOPQ2510)
❏ Rotary tool such as Dremel

®

❏ Hobbico fl exible 18" ruler stainless steel (HCAR0460)

IMPORTANT BUILDING NOTES

• The stabilizer and wing incidences and motor thrust
angles have been factory-built into this model. However,
some technically-minded modelers may wish to check
these measurements anyway. To view this information
visit the web site at www.greatplanes.com and click on
“Technical Data.” Due to manufacturing tolerances which
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 parts for the Great Planes Edge 540 EP ARF are
available using the order n umbers in the Replacement P arts
List that follows. The fastest, most economical service can be
provided by your hobby dealer or mail-order company.

To locate a hobby dealer, visit the Hobbico web site at
www.hobbico.com. Choose “Where to Buy” at the
bottom of the menu on the left side of the page. Follow the
instructions provided on the page to locate a U.S., Canadian
or International dealer.

Parts may also be ordered directly from Hobby Services by
calling [phone], or via facsimile at [phone],
but full retail prices and shipping and handling charges will
apply. Illinois and Nevada residents will also be charged
sales tax. If ordering via fax, include a Visa® or MasterCard®
number and expiration date for payment.

Mail parts orders and payments by personal check to:

• 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 45-minute) epoxy or 6-minute epoxy. When
30-minute epoxy is specifi ed it is highly recommended that
you use only 30-minute (or 45-minute) epo xy, 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.

Hobby Services

3002 N. Apollo Drive, Suite 1

Champaign, IL 61822

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

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

Replacement Parts List

Description How to Purchase

Missing pieces Contact Product Support
Instruction manual Contact Product Support
Full-size plans Not available

4

Contact your hobby supplier for the following parts:

GPMA3155 Wing Set
GPMA3156 Fuselage
GPMA3157 Tail Surface Set
GPMA3158 Landing Gear
GPMA3159 Wheel Pants
GPMA3160 Cowl
GPMA3161 Canopy
GPMA3162 Wing Joiner Tube
GPMA3163 Decal Sheet
GPMA3164 Battery Hatch

COMMON ABBREVIATIONS

Stab = Horizontal Stabilizer
Fin = Vertical Fin
LE = Leading Edge
TE = Trailing Edge
LG = Landing Gear
Ply = Plywood
" = Inches
mm = Millimeters
SHCS = Socket Head Cap Screw
ESC = Electronic Speed Control

METRIC CONVERSIONS

1" = 25.4mm (conversion factor)

1/64" = .4mm
1/32" = .8mm
1/16" = 1.6mm
3/32" = 2.4mm
1/8" = 3.2mm
5/32" = 4.0mm
3/16" = 4.8mm
1/4" = 6.4mm
3/8" = 9.5mm
1/2" = 12.7mm
5/8" = 15.9mm

3/4" = 19.0mm
1" = 25.4mm
2" = 50.8mm
3" = 76.2mm
6" = 152.4mm
12" = 304.8mm
18" = 457.2mm
21" = 533.4mm
24" = 609.6mm
30" = 762.0mm
36" = 914.4mm

5

KIT INSPECTION

KIT INSPECTION

KIT CONTENTS

Before starting to build, take an inventory of this kit to make sure it is complete and inspect the parts to make sure they
are of acceptable quality. If any parts are missing or are not of acceptable quality, or if you need assistance with assembly,
contact Product Support. When reporting defective or missing parts, use the 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

2

1

4

5

1 Cowl
2 Canopy
3 Fuselage
4 Spinner
5 Main Landing Gear (L&R)
6 Wheel Pants (L&R)
7 Main Wheels (2)
8 Horizontal Stabilizer
9 Elevator Halves (L&R)
10 Carbon Fiber Wing Tube
11 Tail Skid

3

5

6

9 9

7

13 14

8

10

11

12

Kit Contents

12 Vertical Fin & Rudder
13 Left Wing Panel with Aileron
14 Right Wing Panel with Aileron

6

PREPARATIONS

❏ 1. If you have not done so already, remove the major parts

of the kit from the box and inspect for damage. If any parts
are damaged or missing, contact Product Support at the
address or telephone number listed in the “Kit Inspection”
section on page 6.

❏ 2. Carefully remove the tape and separate all the control

surfaces. Use a co v ering iron with a covering sock on medium
heat to tighten the covering if necessary. Apply pressure over
sheeted areas to thoroughly bond the cov ering to the wood.

❏ 2. Insert the CA hinges halfway into the slots in the wing

panels. Push small T-pins through the middle of the hinges to
keep them centered. Insert the ailerons onto the other ends
of the hinges. Align the outer tips of the ailerons fl ush with the
wing tips. Pull the ailerons away from the panels far enough
to confi rm that the hinges remained perpendicular with the
hinge line. If not, use a hobby knife or small screwdriver to
nudge them straight.

ASSEMBLE THE WING P ANELS

❏ 1. Test fi t the pre-cut CA hinges into the slots in the wing

panels and ailerons. If any are diffi cult to install, enlarge the

slots with a hobby knife.

❏ 3. When satisfi ed, carefully remove the T-pins from the

hinges. Adjust the ailerons so there is a small gap between
the LE of the aileron and the wing. The gap should be small,
just enough to see light through the gap or slip a piece of
paper through. Use thin CA glue to secure the ailerons by
applying 6 to 7 drops onto both sides of each hinge.

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

servo and wrap the connection with transparent tape or heat
shrink tubing (not included).

7

7

❏ 5. Trim the covering from the aileron servo bays on the

undersides of the wing panels. Also trim the covering from
the control horn slots in the ailerons.

❏ 7. Locate tw o double-sided servo arms that fi t the output

splines of your aileron servos and four adjustable clevises.

❏ 8. Temporarily connect your aileron servos and battery

pack to your radio and center the servos and trim levers on
the transmitter. Test fi t the double-sided servo arms parallel
to the aileron hinge line. If the servo arm does not fi t onto
the servo spline parallel to the hinge line, remove it from the
servo and rotate it 180°. Decide which way fi ts best (closest
to parallel) and cut off the arm that isn’t used. The remaining
arm should point toward the wing tip. Be sure to make a left
and right servo arm.

❏ 6. Insert the servo leads into the servo bays and pull them

through the wing ribs. The ser vos can be installed using the
hardware included with the servos or they can be glued in
place. If installing the servos in place with screws, thread a
mounting screw (included with the servo) into each hole you
drilled and remove it. Apply a couple drops of thin CA glue to
each hole to harden the wood. If gluing the servos in place,
slit or puncture the covering just beneath the servo mounting
tabs where they will contact the wing. This will ensure that
the servo will be glued to the plywood servo bay, not just the
covering. Roughing up the underside of each servo mounting
tab with sandpaper will also improve glue adhesion. Glue the
aileron servos into the servo bays using epoxy or CA glue
with the servo splines facing the LE of the wings. After the
glue has cured, confi rm that the servos are properly secured
to the wings and reinforce with extra glue if necessary.

❏ 9. Fit an adjustable clevis onto both 2 x 90mm carbon

fi ber aileron pushrods. Push/rotate the clevis from each
pushrod into the outer holes of the servo arms.

8

8

❏ 10. Coat the control horn backplate tabs with medium

CA and press them into the slots in the ailerons.

INST ALL THE WING PANELS

❏ 1. Trim the covering in the fuselage for the wing tube, wing

mounting tabs, servo lead holes, and anti-rotation pins.

❏ 11. Attach an adjustable clevis to the outer hole in each

aileron control horn. Fit the other ends of the pushrods
into the clevises on the control horns. With the servo arms
perpendicular to the servo cases and the ailerons in the
neutral positions, center the length of the pushrods between
the two clevises. When satisfi ed, lock the clevises onto the
pushrods by threading a 2 x 4mm screw into each clevis
screw hole. The screw head should fi t into the recessed hole
in the adjustable clevises as shown (installing the screws

in the wrong direction may not properly tighten the
clevises onto the pushrods).

❏ 2. Glue the 3 x 15mm carbon fi ber anti-rotation pins

halfway into the holes in the wing root ribs.

❏ 3. Slide the carbon wing tube into the wing tube channel

in the fuselage and center its position.

9

❏ 4. Slide the wing panels onto the wing tube and push them

in place against the fuselage sides by fi tting the anti-rotation
pins into their mating holes. Use two 3 x 8mm machine
screws, two 3mm fl at washers and threadlocking compound
to secure the wing panels to the fuselage.

ASSEMBLE THE T AIL SECTION

❏ 1. Test fi t the vertical fi n into the slot at the aft end of the

fuselage. Confi rm that the fi n is perpendicular to the wings. If
not, carefully sand the slot as necessary until the correct fi t is
achieved. When satisfi ed, glue the fi n into the slot.

❏ 2. Trim the covering from the horizontal stabilizer slot

in the fuselage.

10

❏ 3. Test fi t the elevator joiner wire into the elevator

halves. Lay the elevators on your work surface and confi rm

that they both lay fl at. If not, “tweak”, or bend the elevator
joiner wire slightly until they do. Do not attempt to bend the
joiner wire while it is installed in the elevators. Do not glue
the joiner wire in place at this time.

Stand back several feet behind the model and view it from
behind. Confi rm that the stabilizer is parallel with the wing
panels. If not, use tape or a weight to straighten it. CA glue or
epoxy can be used to glue the stabilizer in place. Be sure that
the elevator joiner wire is in place before gluing the stab!

❏ 4. Insert the elevator joiner wire into the aft end of the

stab slot. Test fi t the horizontal stab into the slot in front of
the joiner wire. The joiner wire must be able to swivel freely
inside the slot. If it cannot, carefully enlarge the slot as
necessary with a hobby knife. Roughen the elevator joiner
wire with sandpaper and clean it off with alcohol.

AA

A=A
B=B

BB

❏ 6. Prepare the elevators by inserting a CA hinge into each

hinge slot. Use T-pins to keep the hinges centered. Put a
light coating of epoxy onto the ends of the elevator joiner
wire. Install the elevators onto the joiner wire while fi tting the
CA hinges into their mating slots in the horizontal stabilizer.
As you did with the ailerons, use thin CA to glue the hinges.
Wipe away any excess epoxy with a cloth dampened with
denatured alcohol.

❏ 5. Position the horizontal stabilizer into the stab slot,

centering it left and right and making it square to the wings.

❏ 7. Attach the rudder to fuselage using three CA hinges.

11

INSTALL THE TAIL SERVOS & PUSHRODS

❏ 8. Trim the covering from the control horn slot in the left

elevator (both top and bottom) and insert a control horn into
the slot on the underside of the elevator. Press a control
horn backplate onto the control horn tab on top of the
elevator. Apply a few drops of medium CA glue to the control
horn and backplate to secure them in place. The control horn
tab can be trimmed fl ush with the backplate.

❏ 9. Attach a control horn to the right side of the rudder in

the same manner.

❏ 1. Trim the covering from the elevator and rudder servo

bays on both sides of the fuselage as shown.

❏ 2. Attach a 16" [400mm] servo extension to the elevator

and rudder servos. Use your radio system to center the
servos. Before installing the servos, test fi t double-sided
servo arms perpendicular to the tail servo cases. If the servo
arms do not fi t onto the ser vo splines perpendicular to the
servo cases, remove them from the servos and rotate 180°.
Decide which way fi ts best (closest to perpendicular) and cut
off the arms that aren’t used. Secure the servos in the servo
bays with the splines facing forward.

❏ 3. Attach an adjustable clevis to the outer holes of the

rudder servo arm and rudder control horn. Attach the arm to

12

the servo with the servo arm screw. Install a 3-9/16" [90mm]
pushrod into the clevises, center the control surf ace, and use
2 x 4mm self-tapping screws to secure the clevises to the
pushrod. The screw head should fi t into the recessed hole
in the adjustable clevises as shown (installing the screws

in the wrong direction may not properly tighten the
clevises onto the pushrods).

❏ 4. Install the elevator pushrod in the same manner using

a 4-3/8" [110mm] pushrod.

INSTALL THE LANDING GEAR

❏ 3. Fit the 3 x 25mm machine screw (axle) through the axle

hole in the wheel and secure the wheel to the axle using a
3mm nut and threadlocking compound. Be sure the nut is
loose enough to allow the wheel to rotate freely on the axle.
Fit the wheel and axle inside the wheel pant with the end of
the screw through the landing gear leg (the tapered sides of
the landing gear legs face the rear of the plane) and install
another 3mm nut with threadlocking compound tightly
against the landing gear leg, securing the wheel pant in place.
The addition of silicone adhesive between the wheel pant and
landing gear leg will help prevent the wheel pant from rotating
on the axle. Repeat this step for the other wheel.

❏ 1. Trim the covering from the landing gear slots in the

fuselage.

❏ 2. Measure and mark 1-5/8" [41mm] from the front and

1/4" [6mm] from the bottom of the wheel pants. Drill a 1/8"
[3mm] hole at your marks (or use a reamer) on the inside of
each wheel pant. Accuracy during this step will ensure that
your wheels are centered inside the pants. When drilling the
holes, make a pilot hole with a smaller bit fi rst, then enlarge
the holes to the correct diameter. Be sure to make a left and
right wheel pant!

❏ 4. Attach the landing gear to the fuselage using four

3 x 8mm machine screws, four 3mm w ashers, and threadlocking
compound.

13

❏ 5. Use a hobby knife to cut open the covering ov er the slot

in the bottom tip of the tail skid. Glue a 3mm w asher into the
slot. The washer will prevent the tail skid from being worn
down when fl ying from a paved runway.

MOUNT THE MOTOR, ESC & RECEIVER

❏ 1. Use the fl at head screws included with the motor and

threadlocking compound to attach the plywood motor
adapter to the back of the out-runner motor case.

❏ 6. Trim the covering from the tail skid slot at the aft end

of the fuselage. Glue the tail skid into the slot using medium
CA or epoxy. Be sure to remove the covering from the top of
the skid and the fuselage where the skid will be glued before
you attach it.

❏ 2. Attach the motor to the motor mounting box using

four 3 x 8mm machine screws, four 3mm fl at washers, and
threadlocking compound.

❏ 3. The ESC should be secured to the side of the motor

mounting box with double-sided servo tape. For better
adhesion of the tape, brush on a light coating of epoxy where
the ESC will be installed.

❏ 4. Connect the motor leads on the ESC to the motor. This

is a good time to confi rm that the motor will rotate the correct

14

direction (use your radio system to test the motor operation).
If the motor is rotating the wrong direction, disconnect any
two of the three motor leads and swap their position. Plywood
clips are included to hold the motor leads away from the
rotating motor. These can be glued anywhere on the motor
box where necessary. Be sure to read the “Lithium Battery
Handling and Usage” section on page 20 of this manual!

❏ 7. Coat the center of the battery tray with epoxy and let it

cure. Apply the “hook” side from the included self-adhesive
hook and loop material to the tray.

❏ 5. Connect the servo leads and ESC to the receiv er . If y ou

are using a 4-channel receiver , you will also need a dual servo
extension or Y-harness for the aileron servos. Cut a piece of
double-sided servo tape to secure the receiver inside the
fuselage. We attached ours to the top of the second former
just behind the battery tray.

❏ 6. A small hole just aft of the battery hatch opening is

provided to route the receiver antenna. Trim the covering
from the hole, feed the antenna through it, and tape it to the
underside of the fuselage as shown.

❏ 8. A strap can be made from the included non-adhesive

hook and loop material for securing the battery pack to the
tray by overlapping the mating ends of the pieces. Apply the
“loop” side of the adhesive hook and loop material to the
battery pack. The strap should be wrapped around the tray
and battery tightly. When you balance the model, the exact
position of the battery pack will be determined. When you
know where the pack will need to be to balance, mark its
position onto the battery tray.

15

❏ 9. Glue the two hatch dowels halfway into the holes in

the front of the battery hatch. Glue two magnets into the
battery hatch with medium CA as shown. Do not use too
much CA because it may prevent the magnets from sitting
fl ush inside the holes. If the magnets do not sit fl ush with the
hatch bottom, use long nose pliers to carefully press them
in place. A light skin coating of thin CA over the magnets
that overlaps onto the wood frame of the hatch will help
secure the magnets in place. Let the CA glue harden without
accelerator.

INSTALL THE COWL, CANOPY & SPINNER

❏ 1. Prepare the inside of the cowl by lightly scuffi ng it with 220-

grit sandpaper. When satisfi ed, clean the inside with alcohol.

❏ 10. Glue two magnets into the fuselage for the battery

hatch. Be sure that the magnets are glued with the correct
polarity facing out! The magnets in the fuselage must be

attracted to the magnets in the battery hatch.

❏ 11. Test fi t the battery hatch onto the fuselage.

❏ 2. Glue the four plywood magnet back pieces to the cowl

ring. Glue a magnet into each of the four holes in the cowl
ring by coating the insides of the holes with medium CA. A
light skin coating of thin CA over the magnets that overlaps
onto the cowl ring will help secure the magnets in place. Let
the CA glue cure without accelerator.

❏ 3. Glue four magnets into the holes in the fuselage as

shown. Be sure that the magnets are glued with the
correct polarity facing out! The magnets in the fuselage

must be attracted to the magnets in the cowl ring. As y ou did
with the cowl ring, apply a light skin coating of thin CA over

16

the magnets after they have been glued into the fuselage.
Let the CA cure without accelerator.

❏ 6. Cut a cooling hole out of the underside of the cowl as sho wn

approximately 2-1/2" [64mm] wide x 1-1/2" [38mm] long.

❏ 4. Connect the cowl ring onto the fuselage. Slide the

cowl over the cowl ring and onto the fuselage. Confi rm that
the spinner backplate properly fi ts your motor shaft. If not,
ream or drill it to the correct diameter. Temporarily install the
spinner backplate onto the prop shaft. Adjust the position
of the cowl on the fuselage so that the colors line up with
the covering on the fuselage. The spinner backplate should
be centered over the front cowl opening, and the backplate
should be approximately 3/32" [2.4mm] beyond the front
of the cowl. When satisfi ed, tack glue (medium or thick CA
recommended) the cowl to the cowl ring in three or four
spots by reaching through the front opening in the cowl. A
CA applicator tip is very useful in this step. If y ou do not hav e
an applicator tip long enough, use a stick to apply a dot of
epoxy to each of the four co wl ring corners. Be careful not to
glue the cowl ring to the fi rewall! As an additional precaution,
you can use one of the plastic bags that came in the plane
box as a protective liner between the cowl ring and fi rewall.

❏ 7. Reattach the cowl to the fuselage. Install the propeller,

prop washer, and prop nut onto the prop shaft. Install the
spinner cone using the included spinner screws. Depending
on the size propeller being used, the slots in the spinner cone
may need to be enlarged using a hobby knife or rotary tool.

❏ 8. If you plan to install the instrument panel decal, do so

now . Finish up the assembly b y taping the canopy in position.
Clear tape works well for this.

❏ 5. Carefully remove the cowl (and cowl ring) from the

fuselage and apply a fi llet of medium or thick CA glue along
the front of the cowl ring where it touches the cowl.

17

Apply the Decals

1. Use scissors or a sharp hobby knif e to cut the decals from

the sheet.

❏ 4. After checking the control directions and centering

the control surfaces, it is recommended to apply a drop of
thin CA glue to each carbon pushrod where it meets the
adjustable clevis. This will ensure that the pushrods will not
change position in the clevises during fl ight.

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

and dust. Prepare a dishpan or small bucket with 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 and water allows accurate
positioning and reduces air bubbles underneath.

3. P osition decal on the model where desired. Holding the decal

down, use a paper towel to wipe most of the water a w a y.

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

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

GET THE MODEL READY TO FLY

Check the Control Directions

❏ 1. Turn on the transmitter and receiver and center the

trims. If necessary, remove the servo arms from the servos
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 surfaces .

Set the Control Throws

Use a Great Planes AccuThrow (or a ruler) to accurately
measure and set the control throw of each control surface
as indicated in the chart that follows. If your radio does not
have dual rates, we recommend setting the throws for your
fi rst few fl ights at the low rate setting.

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

These are the recommended control surface throws:

HIGH RATE

ELEVATOR: 1-1/8" [29mm], 19° up

1-1/8" [29mm], 19° down
RUDDER: 2-3/4" [70mm], 27° left

2-3/4" [70mm], 27° right

❏ 3. Make certain that the control surfaces and the throttle

respond in the correct 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 servos
connected to those controls. Be certain the control surfaces
have remained centered. Adjust if necessary.

AILERONS: 1-1/8" [29mm], 20° up
1-1/8" [29mm], 20° down

LOW RATE

ELEVATOR: 1/2" [13mm], 8° up

1/2" [13mm], 8° down
RUDDER: 2" [51mm], 19° left

2" [51mm], 19° right
AILERONS: 5/8" [16mm], 11° up

5/8" [16mm], 11° down

3D RATE

ELEVATOR: 2-1/4" [57mm], 40° up

2-1/4" [57mm], 40° down
RUDDER: 3-3/4" [94mm], 39° left

3-3/4" [94mm], 39° right
AILERONS: 1-3/4" [44mm], 33° up

1-3/4" [44mm], 33° down

18

IMPORTANT: The Edge 540 EP ARF has been e xtensively

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 Edge 540
EP ARF fl ies, you would like to change the throws to suit
your taste, that is fi ne. However, too much control throw
could make the model diffi cult to control, so remember,
“more is not always better.”

Balance the Model (C.G.)

❏ 2. With all parts of the model installed (ready to fl y) and

the battery pack installed, place the model on a Great Planes
C.G. Machine, or lift it 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 to balance. If the nose
drops, the model is “nose heavy” and the batter y pack and/
or receiver must be shifted aft to balance. If possible, move
the battery pack and receiver to minimize or eliminate any
additional ballast required.

❏ 4. IMPORTANT: If you found it necessary to move the

battery pack or receiver for the Edge 540 EP ARF to balance,
recheck the C.G. after this has been done.

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 enjo y it for man y 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 be in ready-to-fl y condition
with all of the systems in place including the motor, landing
gear, battery pack, and the radio system.

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

mark the C.G. on the bottom of the wing on both sides of the
fuselage. The C.G. is located 2-1/2" [64mm] back from the
LE 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 3/8" [10mm] forward or 9/16" [14mm] 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 tak eoff and mak e it more
diffi cult to slow for landing. Moving the C.G. aft makes
the model more maneuverable, but could also cause it to
become too diffi cult to control. In any case, start at the
recommended balance point and do not at any time
balance the model outside the specifi ed range.

Balance the Model Laterally

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

model by the motor propeller shaft and the bottom of the
fuselage under the TE of the fi n. Do this several times.

❏ 2. If one wing always drops when y ou 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 laterall y balanced

will track better in loops and other maneuvers.

PREFLIGHT

Identify Y our 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 alwa ys hav e your
name, address, telephone number and AMA number on or
inside your model. It is required at all AMA R/C club fl ying sites
and AMA sanctioned fl ying events. Fill out the identifi cation
tag on page 23 and secure it on or inside your model.

19

Charge the Batteries

broken wires, corroded wires on old servo connectors, or a
damaged receiver crystal from a previous crash.

Follow the battery charging instructions that came with your
radio control system to charge the batteries. You should
always charge your transmitter battery 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 batteries should be done 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.

Balance Propellers

MOTOR SAFETY PRECAUTIONS

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

Get help from an experienced pilot when learning to operate
electric motors.

Use safety glasses when running electric motors.
Do not operate the motor 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 operate the motor .
Keep these items away from the prop: loose clothing, shirt

sleeves, ties, scarfs, long hair or loose objects such as
pencils or screwdrivers that may fall out of shirt or jacket
pockets into the prop.

The motor gets hot! Do not touch it during or right
after operation.

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 motor mounting screws and bolts loosen, possibly with
disastrous effect, but vibration may also damage your radio
receiver and battery.

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.

Range Check

Ground check the operational range of your r adio before the
fi rst fl ight of the day. With the transmitter antenna collapsed
and the receiver and transmitter on, you should be able to
walk at least 100 feet 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 motor running at
various speeds with an assistant holding the 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 rst. Look for loose servo connections or

LITHIUM BATTERY HANDLING & USAGE

WARNING!! Read the entire instruction sheet included
with your 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.

• AL WAYS set charger’s output volts to match battery volts.

• ALWAYS charge in a fi reproof location.

• NEVER trickle charge.

• NEVER allow the 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.

20

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 A viation magazine, the AMA web site or
the Code that came with your AMA license.

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 than the landing gear, intentionally touch
the ground, except while landing.

CHECK LIST

General

1) I will not fl y my model aircraft in sanctioned events, air sho ws,
or model fl ying demonstrations until it has been proven to be
airworthy by having been pre viously, 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 operator . 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 abide 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 (any device
that explodes, burns, or propels a projectile of any kind).

Radio Control

1) I will have 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.

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 certain
checks and procedures that should be performed before the
model is fl own. To help avoid this, a check list is provided to
make sure these important areas are not overlooked. Man y
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 fuselage. 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. Add a drop of oil to the axles so the wheels will

turn freely.

❏ 6. Make sure all hinges are securely glued in place.
❏ 7. Confi rm that all controls operate in the correct direction

and the throws are set up according to the manual.

❏ 8. Make sure that all servo arms are secured to the

servos with the screws included with your radio.

❏ 9. Secure connections between servo wires and

Y-connectors or servo extensions with vinyl tape, heat
shrink tubing or special clips suitable for that purpose.

❏ 10. Balance your propeller (and spare propellers).
❏ 11. Tighten the propeller nut and spinner.
❏ 12. Place your name, address, AMA number and telephone

number on or inside your model.

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

your fi rst fl ight.

❏ 14. Range check your radio when y ou get to the fl ying fi eld.

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 the
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 F ederal Communications Commission.

5) I will not knowingly operate 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).

21

FLYING

to fl ying speed almost instantly. Climb to a comfortable
altitude and throttle back to a lower power setting.

The Edge 540 EP ARF is a great-fl ying model that fl ies
smoothly and predictably. The Edge 540 EP ARF does not,
however, possess the self-recovery characteristics of a
primary R/C trainer and should be fl own only by experienced
R/C pilots.

CAUTION (THIS APPLIES TO ALL R/C AIRPLANES): If,
while fl ying, you notice 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 (such as a wing or
stab) rapidly vibrates up and down (thus causing the noise).
In extreme cases, if not detected immediately, fl utter can
actually cause the control surface to detach or the fl ying
surface 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 saf ely 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 once, under similar circumstances
it will probably 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
mounting; and one of the most prevalent causes of fl utter;
Flying an over-powered model at excessive speeds.

Takeoff

If you have access to a smooth, paved runway, we suggest
using it to takeoff, especially for the fi rst few fl ights. Position
the Edge 540 EP ARF onto the runway pointed into the
wind. Slo wly advance the throttle stic k to half throttle, lea ving
the elevator in the neutral position. As the tail rises off the
ground, slowly increase throttle and apply a bit of up elev ator
to lift the model into the air. As you become accustomed to
the takeoff characteristics of the Edge 540 EP ARF, they can
be performed quickly, only requiring a short distance until the
model is airborne.

If you do not have access to a smooth runway, the Edge
540 EP ARF can be hand launched. For the fi rst fl ight, it is a
good idea to have someone launch the airplane for you. This
allows you to keep y our hands on the radio sticks and correct
any trim problems that are present.

Have the person launching the Edge 540 EP ARF hold the
plane by the fuselage just below the canopy. Throttle up to
full power, and have your helper give the plane a gentle
underhanded toss at about 30° angle upward into the wind.
The high thrust to weight ratio will allow the plane to accelerate

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 the plane gets to a
comfortable altitude. While full throttle is usually desir able f or
takeoff, most models fl y more smoothly at reduced speeds.

T ak e it easy with the Edge 540 EP ARF for the fi rst fe w fl ights,
gradually getting acquainted with it as you gain confi dence.
Adjust the trims to maintain straight and level fl ight. After
fl ying around for a while, and while still at a safe altitude
with plenty of battery charge, practice slow fl ight and ex ecute
practice landing approaches by reducing the throttle to see
how the model handles at slower speeds. Add power to see
how she climbs as well. Continue to fl y around, executing
various maneuvers and making mental notes (or having y our
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

To initiate a landing approach, lower the throttle while on the
downwind leg. Allow the nose of the model to pitch do wnw ard
to gradually bleed off altitude. Continue to lose altitude, but
maintain airspeed by keeping the nose down as y ou 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. Le vel the attitude when the model reaches the runwa y
threshold, modulating the throttle as necessary to maintain
your glide path and airspeed. If you are going to overshoot,
smoothly advance the throttle (always ready on the right
rudder to counteract 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 do wn.

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 surprise 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 y our 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

22

are on the desired rates (high/low rates). A fl ight plan greatly
reduces the chances of crashing your model just because of
poor 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!

Make a copy of this identifi cation tag and put it on or
inside your model.

3D FLYING

Because of the power-to-weight ratio on 3D planes, str aight­and-level fl ight should be at a reduced throttle and full power
should be used only when the airplane is “loaded” during
a maneuver. Learn to manage the throttle and experiment
while in the maneuver . The power needed will depend on the
maneuver being performed. C.G. also plays a large role in
the 3D capability of models as well. Experiment, but keep in
mind that being tail heavy is not always the best way to go.

model from being pulled downwards). As the model fl attens
out, add power to pull the model around. Many models will
require some rudder correction (usually right rudder) during
this maneuver . Some planes will require aileron correction to
keep the wings level.

UPRIGHT FLAT SPINS

Pull the nose up slightly and slowly decrease power. As the
model slows to a few mph, slowly apply full left rudder and
power. Next, start adding up elevator as needed to keep the
model fl at in the spin. Most airplanes will require some aileron
as well to keep the wings level. This is one of the maneuvers
to experiment on; try different C.G. positions and different
amounts of throw and power to see how fl at the spin will go.
It is possible to maintain altitude in the fl at spin and in some
cases it is also possible to climb during the spin.

INVERTED FLAT SPINS

This is the same as the upright fl at spin except most planes
like to spin in the opposite direction, for e xample: right rudder
and down elevator.

THE WALL

Fly straight across the fi eld at a moderate speed and simply
pull full up until vertical. Adjust the power as necessary to
maintain a hover.

KNIFE EDGE TUMBLE

Another thing to remember is that maximum control throw is
not necessary for all 3D maneuvers. Occasionally, too much
throw can place the model too far into a stall, causing it to
become uncontrollable. Practice your maneuvers at a higher
altitude while you become accustomed to your particular
plane’s stall characteristics.

WATERFALLS

With the model pointing vertically (almost in a hover), push
full down elevator and full throttle. As the model rotates and
begins to point downwards, reduce the throttle (to keep the

This is an impressive looking maneuver that really isn’t as
diffi cult as it looks. (Before learning this maneuver you must
be able to confi dently Snap and Tumble your plane and stop
the aircraft exactly, without over rotating.) Fly the model
Knife Edge from the right at a moderate airspeed, using
just enough rudder to maintain Knife Edge, not climbing or
diving. Perform one full right negative Tumble by maintaining
your rudder setting while applying full throttle, full down
elevator, and full r ight aileron, releasing in time to end again
fl ying Knife Edge to the right. Note that you ma y need to use
some positive elevator and/or left aileron to stop the Tumble
at exactly Knife Edge. This maneuver is easier to the right
because torque helps stop the Tumble and it can be done at
varied airspeeds with proper throttle and rudder modulation.

VERTICAL HOVER

Fly a straight pass across the fi eld at 75ft high and 100ft out
and pull the model vertical. Roll the model until the top of it is
facing you and slowly begin to reduce power. As the model
begins to slow down to 10 mph or so , slowly add a little bit of
power back in. You will have to adjust the throttle as needed,
but make your adjustments smooth. Some right aileron may

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be needed to keep the model from torque rolling. Use the
rudder and elevator to keep the nose pointing str aight up . Be
patient as this maneuver will take a while to learn.

TORQUE ROLL

This is the same as the vertical hover but without the use of
right aileron to keep the model from rolling. If needed, you
can use a little left aileron to speed the roll up. As the model
rotates around, the controls will appear to be reversed to y ou
but only the orientation of the model has changed.

HARRIER

The harrier is nothing more than a high angle of attack fl ying
stall. Check the stall characteristics of your plane before
proceeding with this maneuver. Bring your plane across the
fi eld at 75ft high and 100ft out away from yourself. Slowly
pull back on the elevator while reducing throttle. The nose of
the plane should come up. Depending on the plane/setup,
you may have to make constant aileron (wing walking) and
rudder corrections for this maneuver . As the nose of the plane
comes up, start adding in a little bit of power to help maintain
airspeed. The rudder is now used to turn the model. This
maneuver will take some practice as there are a lot of small
corrections made to keep most planes in the maneuver.

This is one maneuver where less control is needed. Too
much elevator and the model goes into an uncontrollable
stall. The C.G. of the plane will have a large effect on the
stability of the model during this maneuver. Some planes
perform better with more elevator defl ection and a farther
forward C.G. while other planes prefer a further aft C.G. and
less elevator defl ection. Elevator to fl ap mixing can be used
on airplanes with marginal wing area, and some planes won’t
stall so elevator to spolieron mixing will be needed.

turn the model, simply input the elevator or rudder a little sooner
or later in the rotation. It’s all a matter of timing.

PINWHEEL

Climb vertically and bring the model to a vertical hover, but do
not stop long enough to let the torque pull the model around
(climbing or sliding slightly will not be noticeable to spectators
but will keep air fl owing over the ailerons and provide you roll
authority to stop the torque). When the model is hanging,
rock the plane left with rudder, then apply full throttle and
full right rudder and hold both, completing 3/4 of a VERY
tight Knife Edge Loop and fl ying out Knife Edge. When done
correctly, the plane pivots around the wingtip in a very small
area. This maneuver can be done either direction.

ROLLING HARRIER

Once you get comfortable with the upright harrier, it’ s time to work
rolls into the mix. From an upr ight harrier, add in left aileron and
change from up elevator to down elevator when inverted. If you
are comfortable with four point rolls and slow rolls , inputting rudder
on the knife edges can improve the maneuver considerably. To