Great Planes GPMA1208 User Manual
SPECIFICATIONS
Wingspan:
Length: 42.5 in [1080mm]
Wing Area:
52 in [1320mm]
2
550 in
[35.5 dm2]
INSTRUCTION MANUAL
Weight: 5– 5.75 lb
[2270– 2610 g]
Wing
Loading:
21– 24 oz /ft
[64–73 g/dm2]
Radio: Minimum four channel
Engine: .46-.55 cu in (7-9 cc) 2-stroke
2
or .70 (11.5 cc) 4-stroke
Electric: RimFire 32, 45 amp ESC
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
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT
INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.
© 2014 Great Planes Model Mfg. A subsidiary of Hobbico,® Inc.
this kit immediately in new and unused condition to the
place of purchase.
To make a warranty claim send the defective part or item to
Hobby Services at the address below:
Hobby Services
3002 N. Apollo Dr. Suite 1
Champaign IL 61822 USA
Include a letter stating your name, return shipping address, as
much contact information as possible (daytime telephone
number, fax number, e-mail address), a detailed description of
the problem and a photocopy of the purchase receipt. Upon
receipt of the package the problem will be evaluated as quickly
as possible.
Champaign, Illinois
(217) 398-8970, Ext 5
airsupport@greatplanes.com
GPMA1208
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
AMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . .2
DECISIONS YOU MUST MAKE . . . . . . . . . . . . . . . . . . . .3
Motor Battery Recommendations . . . . . . . . . . . . . . . . 3
ESC (electronic speed control) . . . . . . . . . . . . . . . . . .3
Flight Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Radio Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Engine Recommendations. . . . . . . . . . . . . . . . . . . . . .3
Optional Pilot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ADDITIONAL ITEMS REQUIRED. . . . . . . . . . . . . . . . . . .3
Required Hardware and Accessories . . . . . . . . . . . . .3
Optional Supplies and Tools . . . . . . . . . . . . . . . . . . . .3
KIT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . .3
KIT CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
IMPORTANT BUILDING NOTES . . . . . . . . . . . . . . . . . . . 5
ASSEMBLE THE WING . . . . . . . . . . . . . . . . . . . . . . . . . .5
ASSEMBLE THE FUSELAGE . . . . . . . . . . . . . . . . . . . . 11
ELECTRIC MOTOR INSTALLATION . . . . . . . . . . . . . . . 14
ENGINE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 16
COMPLETE THE RADIO INSTALLATION . . . . . . . . . . .18
INSTALL THE COWL . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
FINISH THE MODEL . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Install a Pilot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Apply The Decals. . . . . . . . . . . . . . . . . . . . . . . . . . . .20
GET THE MODEL READY TO FLY. . . . . . . . . . . . . . . . .20
Install and Connect the Motor Battery . . . . . . . . . . . .20
Check the Control Directions. . . . . . . . . . . . . . . . . . .20
Set the Control Throws . . . . . . . . . . . . . . . . . . . . . . .21
Balance the Model (C.G.) . . . . . . . . . . . . . . . . . . . . .22
Balance the Model Laterally . . . . . . . . . . . . . . . . . . .22
PREFLIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Identify Your Model . . . . . . . . . . . . . . . . . . . . . . . . . .22
Charge the Batteries . . . . . . . . . . . . . . . . . . . . . . . . .22
Balance Propellers. . . . . . . . . . . . . . . . . . . . . . . . . . .23
Ground Check and Range Check . . . . . . . . . . . . . . .23
ENGINE SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . .23
AMA SAFETY CODE (excerpts) . . . . . . . . . . . . . . . . . .24
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Radio Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
CHECKLIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Fuel Mixture Adjustments . . . . . . . . . . . . . . . . . . . . .25
Takeoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Flight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Landing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
INTRODUCTION
The Sport Fighter Mustang is a great fl ying sport model. For
the latest technical updates or manual corrections visit the
Great Planes web site at www.greatplanes.com. Open the
“Airplanes” link, then select the Sport Fighter Mustang 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
Academy of Model Aeronautics: 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. (800) 435-9262
Fax (765) 741-0057
Or via the Internet at: http://www.modelaircraft.org
very much like a full-size airplane. If not assembled and
operate d corre c tly, it c o uld poss ibly cause injur y to yoursel f
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
3. You must u se an R /C radio system that is in good co ndition,
a correctly sized engine, and other components as specifi ed
in this instruction manual.
4. 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.
5. While this kit has been fl ight tested to exceed normal use,
if an engine larger than one in the recommended range is
used, the modeler is responsible for taking steps to reinforce
the high stress points and/or substituting hardware more
suitable for the increased stress.
6. 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.
SAFETY PRECAUTIONS
Protect Your Model, Yourself & Others…
Follow These Important Safety Precautions
1. Your Sport Fighter Mustang should not be considered a toy,
but rather a sophisticated, working model that functions
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.
2
DECISIONS YOU MUST MAKE
ADDITIONAL ITEMS REQUIRED
This is a partial list of items required to fi nish the Sport Fighter
Mustang that may require planning or decision making before
st ar ting to buil d. Orde r numbers are provided in parentheses.
Motor Battery Recommendations
The Sport Fighter P-51 ARF comes with a mounting box for
the Great Planes RimFire brushless outrunner motor. This
motor has been tested with this plane and works well.
❍ Great Planes RimFire .32 (42-50-800) Brushless
Outrunner Motor [GPMG4700]
ESC (electronic speed control)
A brushless ESC (electronic speed control) is required for
the recommended motor set-up. We recommend using the:
❍ Great Planes Silver Series SS-45A Brushless ESC
[GPMM1840]
Flight Battery
We recommend the FlightPower FP 30 LiPo 4S 3800mAh
14.8V 30C with an APC 13" x 8E propeller.
❍ Great Planes ElectriFly LiPo 4S 2200mAh 14.8V
30C [GPMP0862]
❍ FlightPower FP 30 LiPo 4S 3800mAh 14.8V 30C
(FPWP3384)
❍ APC 13" x 8E Propeller (APCQ3080)
Radio Equipment
Required Hardware and Accessories
This is the list of hardware and ac cessories required to fi nish
the Sport Fighter Mustang. Order numbers are provided in
parentheses.
❍ Three 6" [150mm] servo extensions
(TACM2090 for Futaba)
❍ 6" Y-harness (FUTM4135)
❍ R/C foam rubber (1/4" [6mm] - HCAQ1000
❍ 1/2 oz. [15g] Thin Pro CA (GPMR6001)
❍ 1/2 oz. [15g] Medium Pro CA+ (GPMR6007)
❍ Pro 30-minute epoxy (GPMR6047)
❍ Drill bits: 1/16" [1.6mm], 5/64" [2mm],
1/8" [3mm], 7/64" [2.8mm].
❍ 6-32 tap and drill set (GPMR8102)
❍ Tap handle (GPMR8120
❍ #1 Hobby knife (HCAR0105)
❍ #11 blades (5-pack, HCAR0211)
❍ Threadlocker thread locking cement (GPMR6060)
❍ Masking tape
❍ Fine line marker
Optional Supplies and Tools
Here is a list of optional tools mentioned in the manual that
will help you build the Sport Fighter Mustang.
❍ 2 oz. [57g] spray CA activator (GPMR6035)
❍ Epoxy brushes (6, GPMR8060)
❍ Mixing sticks (50, GPMR8055)
❍ Mixing cups (GPMR8056)
❍ Rotary tool such as Dremel
❍ Denatured alcohol (for epoxy clean up)
The Sport Fighter Mustang requires a minimum of four
channels. The airplane requires the use of fi ve servos for
the glow engine installation, or four servos and an ESC for
the electric motor installation.
A servo with a minimum 54oz-in of torque is required on all
of the control surfaces. A lower torque servo is acceptable
as the throttle servo. We used th e Fu taba 9001 (FUTM0 075 )
throughout our testing. Additionally, three 6" [150mm] servo
extensions (TACM2090 for Futaba) are required for the aileron
servos and one 6" Y-harness (FUTM4135 for Futaba).
Engine Recommendations
The recommended engine size range for the Sport Fighter
Mustang is 2-stroke .46-.55 cu in (7-9 cc) OR 4-stroke .70
(11.5 cc). If an engine in the upper end of the size range
is used, remember that this is a semi-scale model that is
intende d to fl y at scale-like s peeds, s o throt tle man agement
should be practiced.
Optional Pilot
❍ Great Planes 1/5 scale pilot (GPMQ9115)
KIT INSPECTION
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 Ph: (217) 398-8970, ext. 5
Champaign, IL 61822 Fax: (217) 398-7721
E-mail: airsupport@greatplanes.com
ORDERING REPLACEMENT PARTS
Replacement parts for the Great Planes Sport Fighter Mustang
ARF are available using the order numbers in the Replacement
Parts List that follows. The fastest, most economical service
can be provided by your ho b by dealer or mail- order company.
To locate a hobby dealer, visit the Great Planes web site at
www.greatplanes.com. Select “Where to Buy” in the menu
3
across the top of the page and follow the instructions provided
to locate a U.S., Canadian or International dealer.
Parts may also be ordered directly from Hobby Services by
calling (217) 398-0007, or via facsimile at (217) 398-7721, 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 Hobby Services
and payments by 3002 N Apollo Drive, Suite 1
personal check to: 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 productsupport@greatplanes.
com, or by telephone at (217) 398-8970.
KIT CONTENTS
REPLACEMENT PARTS LIST
Order No. Description
GPMA5365
GPMA5366
GPMA5367
GPMA5368
GPMA5369
GPMA5370
GPMA5371
GPMA5372
GPMA5373
GPMA5374
Wing
Fuse
Tail Surface Set
Cowl
Spinner
Landing Gear Set
Gear Covers
Canopy/Hatch
Decals
EP Motor Mount
11
Kit Contents
1. Spinner
2. Cowl
3. Fuselage
4. Motor Mount
2
1
4
12 13 14
5
5. Fuel Tank
6. Wing Joiner
7. Canopy
8. Wing
9. Landing Gear Doors
10. Landing Gear Wires
3
7
6
8
15
11. Electric Motor Box
12. Forward Fairing
10
9
16 16
16. Main Wheels
17. Tail Wheel
10
17
13. Air Scoop
14. Stab & Elevators
15. Fin, Rudder, & Tail Wheel
Assembly
4
IMPORTANT BUILDING NOTES
● Throughout the manual you will be told to drill holes into
the wood and insert the screws. In all cases you should
insert the screw and then remove the screw. Apply a drop of
thin CA glue to harden the threads. After the glue hardens
re-install the screws.
● When installing nuts on screws and bolts be sure to apply
a drop of thread locker to each one.
● 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.
● The canopy/hatch is pre-installed on the fuselage. To
remove it, slide the canopy forward and lift it from the rear.
3. Install servo arm and hardware. Tie string to the
❏ ❏
servo lead.
ASSEMBLE THE WING
1. Tighten the covering.
❏
4. The end of the string is taped to the root rib of the
❏ ❏
wing. Pull servo lead through the wing.
2. Remove the end of the string from the wing. Do not
❏ ❏
pull the string completely out of the wing.
❏ ❏
5
5. Pull the servo lead through the hole in the wing.
6. Remove the string and then tape the lead to the wing.
❏ ❏
7. Drill four 1/16" [1.6mm] holes through the servo
❏ ❏
mounting holes, into the plywood plate.
10. Glue pin into the right wing root rib.
❏
11. Using 30 minute epoxy, glue two wing joiners together.
❏
Allow it to harden.
12. Apply 30 minute epoxy to both sides of the wing joiner.
❏
8. Mount the servo with four servo screws. Install the
❏ ❏
servo arm so it points toward wingtip.
9. Repeat steps 2 - 7 for the other wing.
❏
13. Apply epoxy inside the joiner pocket and all along the
❏
ro ot rib (includ ing the tab) of both wings. Inser t the joiner and
assemble the wings.
6
14. Tape the wings together and allow the glue to harden.
Hinge Line Hinge Line
CORRECT INCORRECT
FasLink
2-56 (.074") Pushrod Wire
Servo Horn
1/16"
❏
control horn with two 1/16" x 3/8" [2x10mm] screws. Drill a
5/64 [2mm] hole in the outer hole of the servo arm. Install the
clevis to the outer hole of the control horn. Center the aileron
and the servo. Make a mark on the wire where it aligns with
the servo arm outer hole. Bend the wire on the mark. Secure
the wire to the servo arm with a Faslink and then cut off the
excess length of wire.
15. Install a Y-harness to the two aileron servo leads.
❏
Secure the leads with shrink tube or tape.
16. Assemble the pushrod components as shown. Place
❏
the control horn on the aileron in line with the servo arm. Drill a
1/16" [1.6mm] hole though the surface of the aileron. DO NOT
DRILL THROUGH THE TOP OF THE AILERON! Secure the
17. Repeat this for the other aileron servo.
❏
18. Temporarily mount the wing to the fuselage with two
❏
10-24 x 2" [51mm] nylon bolts.
7
19. Place the forward fairing onto the wing and trace the
❏
location onto the wing with a felt tip marker. Do the same with
the air scoop. Using a “Sharp” hobby knife cut the covering
1/16" [1.6 mm] inside of the lines you have drawn. DO NOT
CUT THROUGH THE BALSA WING SKIN!
20. Apply glue to the edges of the fairing. Tape it in place
❏
on the wing.
8
21. Remove the wing bolts from the wing. Insert them into
❏
the holes in the air scoop. Apply glue to the edges of the air
scoop.
23. Assemble the landing gear as shown.
❏
22. Place the air scoop onto the wing, tighten the bolts
❏
to the fuselage and tape the front of the air scoop in place.
Allow the glue to dry.
24. Install the landing gear into the slots in the bottom of
❏
the wing. The landing gear should be angled forward.
9
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