electrifly SR22Turbo Instruction Manual

INSTRUCTION

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CIRRUS® is a registered trademark of Cirrus Design Corporation and is in no way affiliated with Hobbico, Inc.

SPECIFICATIONS

SPECIFICATIONS

Wingspan: 50.5 in [1285mm]

Wingspan

Wing Area: 305 in

Wing Area:05

Wing Loading: 19-23 oz/ft

Wing Loading:-23

WARRANTY

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

0.5 in

2

2

[19.7 dm2]

19.7 dm

2

mm

[58-70 g/dm2]

-7

ength:6 in [915mm

Length: 36 in [915mm]

eight:2.5-3 lb

Weight: 2.5-3 lb [1130-1360 g]

Radio: 4-channel, 4-nano servos

Radio:4-channel, 4-nano servos

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:

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.

MANUAL

-

g

Hobby Services

3002 N. Apollo Dr. Suite 1

Champaign IL 61822 USA

otor:

Motor: .10 (35-30-1250) Brushless

10 (35-30-1250) Brushles

Outrunner

utrunner

READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT

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

© 2010 Hobbico®, Inc. GPMA1166 Mnl

Champaign, Illinois

[phone], Ext 5

[e-mail]

TABLE OF CONTENTS

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

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

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

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

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

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

Batteries and Charger . . . . . . . . . . . . . . . . . . . . . . . . .3

Pilot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

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

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

Optional Supplies and Tools. . . . . . . . . . . . . . . . . . . . .4

Building Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

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

KIT INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

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

KIT CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

BUILDING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . .6

Preparations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Assemble the Wing Panels . . . . . . . . . . . . . . . . . . . . .6

Install the Tail Section . . . . . . . . . . . . . . . . . . . . . . . . .9

Install the Nose Gear, Motor and ESC. . . . . . . . . . . .12

Finish the Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

APPLY THE DECALS . . . . . . . . . . . . . . . . . . . . . . . . . . .16

GET THE MODEL READY TO FLY . . . . . . . . . . . . . . . . .17

Check the Control Directions . . . . . . . . . . . . . . . . . . .17

Set the Control Throws. . . . . . . . . . . . . . . . . . . . . . . .17

Balance the Model (C.G.). . . . . . . . . . . . . . . . . . . . . .18

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

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

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

Charge the Batteries . . . . . . . . . . . . . . . . . . . . . . . . .19

Balance Propellers. . . . . . . . . . . . . . . . . . . . . . . . . . .19

Range Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

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

LITHIUM BATTERY HANDLING AND USAGE . . . . . . . .20

AMA SAFETY CODE. . . . . . . . . . . . . . . . . . . . . . . . . . . .20

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

FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Takeoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

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

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

INTRODUCTION

Congratulations on your purchase of the Great Planes

ElectriFly Cirrus SR22 ARF! With only an evening or two of

fi nal assembly, you will be rewarded with a beautiful scale

model that fl ies with inexpensive radio components and can

fi t in the backseat of a car without removing the wings. The

wings can be removed for storage by simply unscrewing the

knurled wing bolts and sliding the panels off of the lightweight

carbon wing tube. Battery changes are a snap with the self-

aligning magnetic hatch. A fi berglass fuselage and canopy

hatch ensure a smooth appearance that looks great in the

pits and in the air. A cockpit interior, which only requires the

addition of a pilot(s) of your choice, fi nishes off the realism.

For the latest technical updates or manual corrections to
the Cirrus SR22 ARF visit the Great Planes web site at
www.greatplanes.com. Open the “Airplanes” link, then
select the Cirrus SR22 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.

AMA

If you are not already a member of the AMA, please join!

The AMA is the governing body of model aviation and

membership provides liability insurance coverage, protects
modelers’ rights and interests and is required to fl y at most
R/C sites.

ACADEMY OF MODEL AERONAUTICS

5151 East Memorial Drive

Muncie, IN 47302-9252

Tele. [phone]

Fax [phone]

Or via the Internet at:

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

PROTECT YOUR MODEL, YOURSELF

& OTHERS… FOLLOW THESE

IMPORTANT SAFETY PRECAUTIONS

1. Your Cirrus SR22 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 Cirrus SR22, 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 the model, as doing so
may result in an unsafe or unfl yable model. In a few cases
the instructions may differ slightly from the 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 radio system that is in good condition,
a correctly sized motor, and other components as specifi ed
in this instruction manual. All components must be correctly
installed so that the model operates correctly on the ground
and in the air. You must check the operation of the model and
all components before every fl ight.

5. 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

2

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.

6. 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.

7. WARNING: The fuselage, wheel pants, and canopy hatch
included in this kit are 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. Vacuum the parts and the work
area thoroughly after working with fi berglass parts.

We, as the kit manufacturer, 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.

Propeller

If you are installing the recommended RimFire brushless
motor, we suggest a 10x7E APC propeller (APCQ4123).

Batteries and Charger

One 1500-3350mAh 11.1V Lithium Polymer battery pack
is recommended. Using a 2200mAh 11.1V LiPo, our SR22

balanced at the recommended C.G. without the need for

additional ballast.

Great Planes ElectriFly LiPo 3S 11.1V 1500mAh 25C

❏

(GPMP0511)

Great Planes ElectriFly LiPo 3S 11.1V 2200mAh 25C

❏

(GPMP0520)

FlightPower® EON-X™ Lite LiPo 3S 11.1V 2500mAh 25C

❏

(FPWP4238)

Great Planes ElectriFly LiPo 3S 11.1V 3350mAh 25C

❏

(GPMP0541)

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

Great Planes ElectriFly Equinox™ LiPo Cell Balancer 1-5

❏

(GPMM3160)

DECISIONS YOU MUST MAKE

This is a partial list of items required to fi nish the Cirrus SR22
ARF that may require planning or decision making before

starting to build. Order numbers are provided in parentheses.

Radio Equipment

The Cirrus SR22 ARF requires a minimum 4-channel radio

system with four nano servos such as the ElectriFly ES-50
nano servo. In addition, two 12" [305mm] servo extensions
and a dual servo extension are required for the aileron servos.

Great Planes ElectriFly ES50 Nano Servo J (GPMM1210)

❏

Hobbico® Extension 12" [152mm] Futaba J (HCAM2100)

❏

Futaba® Dual Servo Extension 6" J (FUTM4130)

❏

Motor Recommendation

The recommended motor for the Cirrus SR22 ARF is a

RimFire™ .10 (35-30-1250) brushless outrunner motor.

Great Planes RimFire .10 (35-30-1250) Outrunner

❏

Brushless (GPMG4595)

If using the recommended brushless motor, a 35A brushless
ESC is required:

Great Planes Silver Series 35A Brushless ESC 5V/2A

❏

(GPMM1830)

A suitable charger is also required. The Great Planes
PolyCharge4™ is designed for LiPo packs only. However, it
is able 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 Pb 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)

Pilot

If you wish to use the same pilot that is shown in the building
instructions, purchase Williams Brothers 1/8 Pilot Bust Kit
Sportsman (WBRQ1130). This pilot fi gure requires fi nish
sanding and painting, and some additional modifi cation of
the pilot fi gure is described in the building instructions.

3

ADDITIONAL ITEMS REQUIRED

Adhesives and Building Supplies

This is the list of Adhesives and Building Supplies that are

required to fi nish the Cirrus SR22 ARF:

1/2 oz. [15g] Thin Pro™ CA (GPMR6001)

❏

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

❏

Threadlocker thread locking cement (GPMR6060)

❏

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

❏

Small metal fi le or rotary tool

❏

Revell® #1 Light Duty Aluminum Handle Knife w/Blade

❏

(RMXR6901)
Revell #11 Light Duty Blades (5) (RMXR6930)

❏

Medium T-pins (100, HCAR5150)

❏

Top Flite® MonoKote® sealing iron (TOPR2100)

❏

Top Flite Hot Sock™ iron cover (TOPR2175)

❏

220 grit sandpaper

❏

Panel Line Pen (TOPQ2510)

❏

Optional Supplies and Tools

Building Stand

A building stand or cradle comes in handy during the build.

We use the Robart Super Stand II (ROBP1402) for all our
projects in R&D, and it can be seen in pictures throughout
this manual.

Here is a list of optional tools that will help you build the
Cirrus SR22 ARF:

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

❏

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)

❏

Pro 30-minute epoxy (GPMR6047)

❏

Epoxy brushes 6, (GPMR8060)

❏

Mixing sticks (GPMR8055)

❏

Mixing cups (GPMR8056)

❏

Pliers with wire cutter (HCAR0630)

❏

Rotary tool reinforced cut-off wheel (GPMR8020)

❏

Hobby Heat™ micro torch II (HCAR0755)

❏

Precision Magnetic Prop Balancer (TOPQ5700)

❏

AccuThrow™ Defl ection Gauge (GPMR2405)

❏

CG Machine™ (GPMR2400)

❏

Hobbico Flexible 18" Ruler Stainless Steel (HCAR0460)

❏

Top Flite MonoKote heat gun (TOPR2000)

❏

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

❏

Great Planes Heat Shrink Tubing 3/8x3" (3) (GPMM1060)

❏

Woodland Scenics Low Temp Foam Glue Gun

❏

(WOOU1445)
Denatured alcohol (for epoxy clean up)

❏

IMPORTANT BUILDING NOTES

• 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.

• 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 Cirrus SR22 is factory-covered with Top Flite Jet White
MonoKote fi lm (TOPQ0204). Should repairs ever be required,
MonoKote can be patched with additional MonoKote
purchased separately. MonoKote is packaged in six-foot rolls,
but some hobby shops also sell it by the foot. If only a small
piece of MonoKote is needed for a minor patch, perhaps a
fellow modeler would give you some. MonoKote is applied
with a model airplane covering iron, but in an emergency a
regular iron could be used. A roll of MonoKote includes full
instructions for application.

• 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. 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.

4

KIT INSPECTION

Before starting to build, 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]

Mail parts orders and payments by personal check to:

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 telephone at [phone], or by
e-mail at [e-mail].

REPLACEMENT PARTS LIST

Order No. Description

ORDERING REPLACEMENT PARTS

Replacement parts for the Great Planes Cirrus SR22 ARF
are available using the order numbers in the Replacement
Parts 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 Great Planes web site
at www.greatplanes.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 fax 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.

KIT CONTENTS

GPMA4035
GPMA4036
GPMA4037
GPMA4038
GPMA4039
GPMA4040
GPMA4041
GPMA4042
GPMA4043
GPMA4044
GPMA4045

NOTE

FUSELAGE
WING
TAIL SURFACES
HATCH
WHEELPANTS
NOSE GEAR FAIRING
MAIN GEAR SET
NOSE GEAR
DECALS
WING JOINER ROD
SPINNER

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

1. Fuselage, canopy hatch

2. Wing

3. Horizontal stabilizer
(stab) with elevators

4. Rudder

5. Cockpit interior

6. Main landing gear

7. Main gear wheel pants

8. Main wheels

9. Nose gear fairing

10. Nose gear

11. Nose wheel

12. Nose wheel pant

13. Spinner

14. Wing tube

5

BUILDING INSTRUCTIONS

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 5.

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.

Assemble the Wing Panels

1. Attach a 12" [305mm] servo extension to each aileron

❏

servo. Secure the connections using tape, heat shrink tubing

(not included) or special clips designed for that purpose.

2. Locate the strings taped inside the aileron servo bays

❏

and tie the ends of the strings to the servo extensions. Use
the string to pull the servo leads through the wing ribs.

3. Install the rubber grommets and eyelets included with

❏

the servos. Position the servos in the aileron servo bays in
the orientation shown. Drill 1/16" [1.6mm] holes through
the servo mounting tabs. Thread a servo mounting screw
(included with the servos) into each hole and back it out.

Apply a drop of thin CA to each hole to harden the wood.

When the glue has dried, install the servos using the screws
included with the servos.

6

4. Install a screw lock pushrod connector into the outer

❏

hole of the long servo arm as shown with a nylon screw
lock retainer. Loosely thread a 2x4mm machine screw into
the connector. Center the servos with your radio system and
install the servo arm onto the servo parallel to the aileron
hinge line as shown with the connector toward the wing
tip. Be sure to reinstall the servo arm screw into the servo.
Repeat this step for the other aileron servo.

CORRECT INCORRECT

Hinge Line Hinge Line

6. Drill 5/64" [2mm] holes at the marks you made through

❏

the ailerons. Apply a couple drops of thin CA glue to each
hole to harden the wood surrounding the holes. When the
glue has dried, install the control horns onto the ailerons
using four 2x16mm machine screws and control horn
backplates. The ends of the screws can be cut off beyond
the control horns.

7. Position the aileron in the neutral position and tighten

❏

the screw in the screw lock pushrod connector against the
pushrod with threadlocking compound. The excess pushrod
beyond the pushrod connector can be cut off.

5. Connect the Z-bend end from a 90mm aileron pushrod

❏

into the second outer hole of a control horn. Insert the
other end into the screw lock pushrod connector. Align the
pushrod perpendicular to the hinge line and align the holes
in the control horns directly over the aileron hinge line. Mark
the location of the control horn mounting holes. Repeat this
step for the other aileron servo.

8. Use medium or thick CA to glue the carbon anti-rotation

❏

pins into the wing root ribs. The pins should protrude beyond
the ribs approximately 5/16" [8mm].

7

9. Install the axles onto the landing gear legs using the

❏

included landing gear nuts and threadlocking compound.

12. Thread a 2x6mm self-tapping screw into each hole in

❏

the wheel pants and back it out. Apply a drop of thin CA to
each hole and allow the glue to dry. Install the wheel pants
onto the landing gear with four 2x6mm self-tapping screws.

13. Bolt the landing gear legs to the wing panels using

❏

six 3x10mm machine screws and threadlocking compound.

10. Slide a 4mm wheel collar onto each axle followed

❏

by a main wheel and another 4mm wheel collar. Mark the
location of the screw holes in the wheel collars onto the
axles. Remove the wheel collars and wheels and use a fi le
or rotary tool to grind fl at spots onto the axles at the marks
you made.

11. Install the wheel collars and main wheels onto the

❏

axles. Secure the collars onto the axles with 3mm set screws
and threadlocking compound. Be sure that the wheels rotate
freely. Oil them if necessary.

8

Install the Tail Section

1. Insert the carbon wing tube into the outer wing tube

❏

in the fuselage and center it left and right. Slide the wing
panels onto the tube and tighten them down using the
included wing bolts.

2. Lightly sand the inside of the stabilizer slot in the fuselage

❏

with 220 grit sandpaper and clean it with denatured alcohol.

Temporarily install the horizontal stabilizer into the stab slot

and center it right and left. Stand back 5-6 ft [1.5–1.8m] and
view the model from behind. Confi rm that the stab and wings
are parallel. If not, sand the slot as necessary until they are
parallel. A weight can also be placed on the high side to bring
the stab parallel with the wings.

3. Confi rm that the stab is still centered left and right.

❏

Measure from the wing tips to the stab tips and make those
distances equal. Use a felt-tip pen to trace around the
fuselage onto the stabilizer.

4. Carefully cut the covering 1/16" [1.6mm] inside the

❏

lines you drew and remove the covering. Use a sharp hobby
knife and take care to only cut through the covering and not
into the wood beneath. Use denatured alcohol to wipe away
the lines you drew (or use CA debonder). See the following
Expert Tip for an alternative method for removing covering.

9

HOW TO CUT COVERING FROM BALSA

Use a soldering iron to cut the covering from the stab. The
tip of the soldering iron doesn’t have to be sharp, but a fi ne
tip does work best. Allow the iron to heat fully.

Use a straightedge to guide the soldering iron at a rate
that will just melt the covering and not burn into the wood.
The hotter the soldering iron, the faster it must travel to
melt a fi ne cut. Peel off the covering.

6. Insert the elevator joiner wire into the aft end of the

❏

stab slot. Insert the stab into the slot and center it left and
right. Measure from the wing tips to the stab tips and make
those distances equal. Confi rm that the stab and wing are
still parallel. A weight can be added to one side of the stab
to make any small corrections. When satisfi ed, wick thin CA
along the edges where the stab meets the fuselage. When
the CA has dried, confi rm that the stab is thoroughly glued
to the fuselage. Note: epoxy can also be used in this step.

5. Before gluing the stab into position in the fuselage,

❏

check the fi t of the elevator joiner wire by inserting it into the
holes in the leading edge of the elevators. Lay the elevators
on a fl at work surface and confi rm that they both lay fl at. If
not, remove the wire from the elevators and use pliers to
bend or “tweak” it until they do. Do not attempt to bend the
joiner wire while it is installed in the elevators!

DRILL A 5/64" [2mm] HOLE,

3/8" [9.5mm] DEEP, IN CENTER

OF HINGE SLOT

CUT THE COVERING

AWAY FROM THE SLOT

7. Drill a 5/64" [2mm] hole 3/8" [9.5mm] deep into the

❏

center of each hinge slot in the elevator halves and stab.

Trim the covering away from each hinge slot to ensure that

the hinges will be properly glued in place.

10

8. Test fi t the elevator halves onto the stab with CA hinges.

❏

If necessary, enlarge the hinge slots with a hobby knife.
When satisfi ed with the fi t, insert a CA hinge halfway into
each hinge slot in the stab. Push a pin through the middle
of each hinge to keep them centered. The elevator joiner
wire ends fi t into the pre-drilled holes and slots at the LE
of the elevators. When satisfi ed, roughen the ends of the
elevator joiner wire with sandpaper and clean them with
denatured alcohol. Mix up a small amount of epoxy and coat
the ends of the joiner wire. Install the elevator halves onto
the stab with CA hinges, being sure that there are even gaps
between the stab tips and elevators on each side. Remove
the pins from the hinges. Apply six drops of thin CA to the
top and bottom of each hinge without using accelerator. After
the CA glue has hardened, confi rm that the elevators are
secure by pulling on them and defl ecting them up and down.
Wipe away any excess epoxy with denatured alcohol. The
CA hinges will hold the elevators in place while the epoxy on
the joiner wire cures.

9. Install the rudder to the fuselage in the same manner.

❏

10. Use your radio system to center the elevator and rudder

❏

servo. Install the servos into the fuselage as shown using the
hardware included with the servos. NOTE: Additional servo

bays are included aft of the ones shown in the photo. If you
plan to use a larger battery such as an 11.1V 3350mAh LiPo,
install your servos in the aft position to provide additional space
on the battery tray.

11. Install two screw-lock connectors in the outer holes

❏

of the rudder servo arm and one in the outer hole of the

elevator servo arm. Loosely thread a 2x4mm machine screw

into each connector. Install the servo arms onto the servos

using the servo arm screw, being sure that the arms are

perpendicular with the servo case.

11

12. Insert the long pushrods into the rudder and elevator

❏

outer pushrod tubes and through the screw lock connectors
on the servos. Hook a control horn to the Z-bend of the
elevator pushrod (use the outer hole in the control horn)
and, using the pushrod as a guide to position the control
horn, install the horn onto the underside of the left elevator
with 2x16mm machine screws. Install a control horn onto the
rudder in the same manner using the second outer hole in
the control horn.

Install the Nose Gear, Motor and ESC

1. Insert the nose gear wire through the nose wheel pant

❏

followed by an aluminum spacer, nose wheel, and the other

aluminum spacer. Confi rm that the wheel rotates freely. If

not, remove the wheel and lightly sand each side of the

wheel hub where it contacts the spacers. Oil the axle and

reinstall the wheel.

13. Center the elevators and rudder. Tighten the screws

❏

in the screw lock connectors against the pushrods. The
excess length of pushrod can be cut off 1/4" [6mm] beyond
the connectors.

2. Thread a 2.5x8mm self-tapping washer head screw

❏

into each hole in the nose wheel pant and back it out. Apply a

drop of thin CA to each hole and allow it to harden completely.

Secure the nose gear to the wheel pant with a nylon strap

and two 2.5x8mm self-tapping washer head screws.

3. Fit one half of the nose gear fairing to the nose gear

❏

and carefully apply a thin bead of medium or thick CA glue

12

around its edge. Align the other half of the fairing over the
fi rst and glue the edges of the parts together fl ush.

4. Glue the nose gear fairing to the wheel pant.

❏

wire through the hole on the underside of the fuselage and

up through the steering arm and block. Align the screw in

the steering arm with the fl at spot on the wire and thoroughly

tighten the screw using threadlocking compound.

5. Insert the 3.5mm wheel collar into the nylon steering arm

❏

and loosely thread a 3x8mm machine screw into the collar.

6. Fit the steering arm into the steering arm block so the

❏

arm is on the right side of the fuselage. Insert the nose gear

7. Insert the outer pushrod tube through the hole in the

❏

plywood pushrod support. Insert the remaining pushrod

through the outer pushrod tube. Connect the Z-bend on the

pushrod to the outer hole in the steering arm. Insert the other

end through the screw lock connector on the rudder servo

arm (clip off some of the pushrod wire if necessary when

fl exing the wire to fi t into the connector). With the nose wheel

pointed straight and the rudder servo centered, tighten the

screw in the connector against the pushrod. Center the outer

pushrod tube fore and aft on the wire and fi t the plywood

support into the notch on the battery tray. Thoroughly glue the

outer pushrod tube to the support and the support to the tray.

13

the adhesion of the double-sided tape. When the epoxy

has completely cured, connect the ESC to the motor and

affi x the ESC to the fuselage with a piece of the included

double-sided tape. Now would be a good time to use your

radio system to confi rm the correct rotation of the motor. If

the motor is rotating in the wrong direction (it should rotate

counter-clockwise when viewed from the front), simply swap

two of the three motor wire leads. Be sure to neatly bundle

the excess motor lead wire out of the way of the steering arm.

Finish the Model

8. Remove the brass collar (if applicable) from your

❏

brushless motor. Insert the motor against the inside face of
the fi rewall with the shaft protruding through the center hole.
Install the motor using four 3x8mm machine screws, four
3mm fl at washers and threadlocking compound.

9. Apply a thin coat of epoxy to the inside of the fuselage

❏

in the area where the ESC will be installed (with epoxy
brush in hand, also coat the center of the battery tray where
the battery and receiver will be installed). This will improve

1. Cut a piece of the included self-adhesive hook and

❏

loop material and use it to secure your receiver to the battery

tray just in front of the tail servos. Connect your servos to the

receiver. Neatly bundle the excess servo lead wires out of

the way of the tail servos.

2. In order to orient the receiver antennas as described in

❏

the radio manual, we used scrap pieces of fuel tubing glued

to the inside of the fuselage (tape can also be used). If you

have an FM or PCM radio, route the receiver antenna out

the cutout on the bottom of the fuselage and tape it in place.

14

3. Cut pieces from the hook side of the included self-

❏

adhesive hook and loop material and attach them to the
battery tray. Make a battery strap from the included non­adhesive hook and loop material by overlapping the material
by approximately 1" [25mm]. Cut the strap to properly fi t your
battery and insert it through the slots in the battery tray.

4. Apply the loop side to the battery and test fi t it into the

❏

fuselage.

6. Install the spinner backplate, propeller, prop washer, and

❏

prop nut. Enlarge the slots in the spinner cone as necessary

to fi t your propeller. When satisfi ed, install the spinner cone

to the spinner backplate using the included screws.

7. Apply the instrument panel decal to the cockpit interior.

❏

5. Install the included prop adapter onto the motor shaft.

❏

Be sure it is pressed on as far as it will fi t onto the shaft.

8. If you plan to install a pilot fi gure, install him now

❏

before gluing the cockpit interior to the canopy hatch. We

used a Williams Bros. 1/8 Sportsman pilot, stock number

15

WBRQ1130. To improve the appearance of the pilot when
installed in the Cirrus, we glued a 1/2" [13mm] thick piece of
scrap balsa to the bottom of the pilot and rough cut the block
to closely match the shape of the pilot. We then carefully
sanded the block to blend in with the pilot fi gure and used a
hobby knife and small wood fi le to continue the contours of
the shoulders and shirt seams onto the balsa block. Some
wood fi ller will fi ll the grain of the balsa and will allow the
paint to be applied smoothly. When satisfi ed, paint your pilot.

A 1/4" [6mm] thick scrap balsa will be required to raise the

height of the pilot above the arm rests when you glue him to
the pilot seat.

10. You have now fi nished the assembly of the Cirrus

❏

SR22 ARF!

APPLY THE DECALS

1. 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 & water allows accurate

positioning and reduces air bubbles underneath.

9.Glue the cockpit interior into the canopy hatch. You will

❏

need to fl ex the forward end of the cockpit interior in order to
fi t it into place. We recommend using hot glue or silicone to
glue the interior in place so if you wish to remove the interior
for access to the pilot, the glue joint can be easily broken.

Thick CA or epoxy would work as well. Use CA sparingly

without activator as there is a chance that CA fumes may
fog the windows.

2. Position decal on the model where desired. Holding the

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

away.

3. 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.

16

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 pushrod positions in the screw lock connectors to
center the control surfaces.

4-CHANNEL RADIO SET UP

(STANDARD MODE 2)

RIGHT AILERON

RUDDER

MOVES

RIGHT

MOVES UP
LEFT AILERON
MOVES DOWN

Set the Control Throws

1. Use a box or something similar to prop up the bottom

❏

of the fuselage so the horizontal stabilizer and wing will be
level.

Measure the high rate elevator throw fi rst…

2. Hold a ruler vertically on your workbench against the

❏

widest part (front to back) of the trailing edge of the elevator.
Note the measurement on the ruler.

FULL

THROTTLE

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.

ELEVATOR

MOVES DOWN

MOVE THE RULER FORWARD

3. Move the elevator up with your transmitter and move

❏

the ruler forward so it will remain contacting the trailing edge.

The distance the elevator moves up from center is the “up”

elevator throw. Measure the down elevator throw the same
way.

4. Repeat this procedure for the remaining control surfaces.

❏

17

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 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 LOW RATE

ELEVATOR

Up

1/4"

[6mm]

12°

Down

1/4"

[6mm]

12°

Up

1/8"

[3mm]

6°

Down

1/8"

[3mm]

6°

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 be in ready-to-fl y condition

with all of the systems in place including the brushless motor,
landing gear, the radio system and battery pack.

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 2-3/16" [56mm] 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 3/8" [9.5mm] forward or 5/16" [8mm] 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
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.

Right

RUDDER

AILERONS

IMPORTANT: The Cirrus SR22 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 Cirrus SR22
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.”

7/16"

[11mm]

17°

Up

7/16"

[11mm]

17°

Left Right

7/16"

[11mm]

17°

Down

7/16"

[11mm]

17°

[6mm]

[8mm]

1/4"

10°

Up

5/16"

12°

Left

1/4"

[6mm]

10°

Down

5/16"

[8mm]

12°

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

❏

model installed (ready to fl y) and battery installed, 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 battery pack and/or receiver
must be shifted aft or weight must be added to the tail to
balance. If possible, relocate the battery pack and receiver

18

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 GPMQ4646 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 support 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 attached. If required, tail weight may be
added by cutting open the 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, the
adhesive may fail and cause the weight to fall off. Use #2
sheet metal screws, RTV silicone 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.

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

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
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
maneuvers.

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 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 21 and place it on or inside your model.

Charge the Batteries

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.

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 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 radio 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 (follow the instructions that came with your radio if
you are using a 2.4GHz system). 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 broken wires, corroded wires on old servo connectors,
poor solder joints in your battery pack or a defective cell, or a
damaged receiver crystal from a previous crash.

19

MOTOR SAFETY PRECAUTIONS

AMA SAFETY CODE (EXCERPTS)

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 motors.

Use safety glasses when running motors.

•

Do not run 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 run the
motor.

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.

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

•

operation.

LITHIUM BATTERY HANDLING

AND USAGE

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 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).

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.

•

ALWAYS 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 3.0V per cell.

•

NEVER place on combustible materials or leave

•

unattended during charge or discharge.

ALWAYS KEEP OUT OF REACH OF CHILDREN.

•

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.

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 Federal 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].

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.

20

CHECK LIST

FLYING

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.
Many 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 receiver is securely mounted in the

❏

fuse. Simply stuffi ng it 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 threadlocking compound to secure critical

❏

fasteners such as the set screws that hold the wheel
axles to the struts, 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, wheel pants
screws, etc.).

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

❏

and the throws are set up according to the manual.

10. 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.

11. Make sure any servo extension cords you may have

❏

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

12. Balance your propeller (and spare propellers).

❏

13. Tighten the propeller nut and spinner.

❏

14. Place your name, address, AMA number and

❏

telephone number on or inside your model.

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

❏

your fi rst fl ight.

16. Range check your radio when you get to the fl ying fi eld.

❏

Name

Address

City, State, Zip

AMA Number

Phone Number

The Cirrus SR22 ARF is a great-fl ying model that fl ies

smoothly and predictably. The SR22 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 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 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

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. If necessary, adjust the nose wheel so the model
will roll straight down the runway. If you need to calm your
nerves before the maiden fl ight, shut the motor down and
bring the model back into the pits. Top off the battery, 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, then gradually advance
the throttle. 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 engine
torque. Be smooth on the elevator stick, allowing the model
to establish a gentle climb to a safe altitude before turning
into the traffi c pattern.

This model belongs to:

21

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 desirable for
takeoff, most models fl y more smoothly at reduced speeds.

Take it easy with the SR22 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. After fl ying around
for a while and while still at a safe altitude with plenty of
battery charge, 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 battery charge, 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 downward
to gradually bleed off 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 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 down. Once the
model is on the runway and has lost fl ying speed, apply some
down elevator to place the nose on the ground, regaining
nose wheel control. Remember to mind your battery charge.
Do not wait until your battery is depleted to begin your
landing approach. You will need some charge left if you need
to abandon your approach and circle back around.

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 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 (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!

22

ALSO AVAILABLE FROM GREAT PLANES

ElectriFly™ VFO ARF
Almost Ready-to-Fly
Electric Sport/3D Aerobat
GPMA1135

Part plane, part helicopter — all fun!

Wingspan: 26.5 in (675 mm)
Wing Area: 382 in² (24.6 dm²)
Weight: 9-10 oz (255-285 g)
Wing Loading: 3.4-3.8 oz/ft² (10-12 g/dm²)
Length: 29.5 in (750 mm)

Requires:

• 6-channel radio w/4 micro servos & elevon mixing (min.)

• 300-size outrunner brushless motor

• 12A brushless ESC (min.)

• 11.1V 300mAh LiPo battery & LiPo charger

The VFO (Vertical Flying Object) takes off like a rocket, hovers like a heli and fl ies like a plane — and
does it all with economical on-board components. It performs Harriers, high-alpha and prop hangs with
ease, and transitions from a Wall directly into a tumbling back fl ip. Lightweight, fi nished foam parts with
servo cut-outs and easy-to-use pushrods make assembly quick and easy. Carbon-fi ber bracing offers
lightweight support...and oversized control surfaces deliver massive maneuvering power.

ElectriFly

™

by Great Planes® FlyLite™ EP ARF

GPMA1107

Indoor/outdoor fl ight done right.

Wingspan: 35 in (890 mm)
Wing Area: 261 in² (16.8 dm²)
Weight: 7.2-8 oz (205-225 g)
Wing Loading: 4-4.4 oz/ft² (12-13 g/dm²)
Length: 29.5 in (750 mm)

The FlyLite is sized just right for go-anywhere good times — and you can be ready to let ‘em roll in as
little as an hour after opening the box. The AeroCell
surfaces make it crash-tough and feather-light. Self-aligning tail surfaces improve tracking and handling
precision, and a steerable tail wheel allows smooth, easy ground handling. ElectriFly even includes an
8x6 PowerFlow™ prop. Add a brushless motor — we recommend the RimFire™ 250 outrunner — as part
of your on-board power system and enjoy premium fl ight performance...indoors or out.

Requires:

• 6-channel radio (min.) w/2 pico servos,

• 1700kV outrunner brushless motor,

• 8A brushless ESC

• 7.4V 300mAh LiPo battery

™

foam fuselage and Pro-Formance™ foam wing

23