Hangar 9 F6F Hellcat 60 ARF User manual

Wingspan:...................................... 65 in (1651mm)
Wing Area: ........................ 770 sq in (49.68 sq dm)
Assembly mAnuAl
F6F Hellcat 60 ARF
Length:........................................... 53 in (1346mm)
Measured with Tru-Turn "A" Style Spinner
Weight:............................. 8–9.5 lb (3.6 kg–4.3 kg)
Specifications
5.


2
Table of Contents
ContentsofKit....................................................................3
Radio and Power Systems Requirements ................................................3
Required Tools and Adhesives ........................................................4
Covering Colors ...................................................................4
Required Field Equipment............................................................4
Limited Warranty & Limits of Liability ..................................................5
Safety Precautions .................................................................5
Questions, Assistance, and Repairs ....................................................5
Questions or Assistance .............................................................5
Inspection or Repairs ...............................................................6
Warranty Inspection and Repairs.......................................................6
Warranty Information ...............................................................6
Using the Manual ..................................................................6
Non-Warranty Repairs...............................................................7
Warning .........................................................................7
Before Starting Assembly ............................................................7
Section 1: Retract Linkage Installation ..................................................8
Section 2: Aileron Installation........................................................12
Section 3: Joining the Wing Panels ...................................................18
Section 4: Engine Installation ........................................................21
Section 5: Canopy and Decal Installation ...............................................24
Section 6: Cowling Installation .......................................................26
Section 7: Stabilizer Installation ......................................................29
Section 8: Installing the Elevators.....................................................32
Section 9: Installing the Rudder ......................................................33
Section 10: Radio Installation ........................................................35
Adjusting the Engine...............................................................39
Control Throws ...................................................................39
Recommended CG ................................................................40
Preflight ........................................................................40
Range Testing the Radio ............................................................40
2006 Official AMA National Model Aircraft Safety Code....................................41
Notes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

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Contents of Kit
Radio and Power Systems Requirements
Additional Required Equipment (not included)
• 537 Standard Servo (JRPS537) (5) or equivalent
• 791 High Torque Lo-Profile Retract Servo (JRPS791) or equivalent
• Large Servo Arm (JRPA212) (2) • 18" Heavy Duty Servo Extension (JRPA099) (2)
• A-Style Propeller Nut: 1 1/4" (TRUB1250A) • 1/7 U.S. WWII Pilot (HAN8311)
Recommended JR®Systems
• PCM10X • XP9303
• XP8103 • X-378
• XP6102 • XF631
• XF421 • Quattro
Recommended Power Systems
• .61–.75 2-stroke
• .91–1.00 4-stroke
• Power 60 Brushless Outrunner
Large Parts:
A. Fuselage HAN4076
B. Wing HAN4077
C. Cowling HAN4079
D. Tail Set HAN4078
E. Scale Detail Set HAN4080
F. Canopy HAN4081
Items Not Shown:
Fuel Tank (Assembled) HAN4086
Tail Wheel Assembly HAN4082
Decal Set HAN4087
Pushrod Set HAN4083
Retract Set HAN4084
Wheels HAN2584
Plastic Wheel Wells HAN4085
A
B
E
D
B
C
JR XP6102 JR XP9303
Evolution .61NT
EVOE0610
Saito 1.00 FA-AAC
SAIE100
Power 60 Brushless
Outrunner Motor,400KV
EFLM4060A

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Required Tools and Adhesives
Tools
• Drill • Drill bits: 1/16" (1.5mm), 5/64" (2mm),
3/32" (2.5mm) 1/8" (3mm), 5/32" (4mm)
• Crescent wrench • Hex wrench: 9/64", 3/16"
• Hobby knife • Hobby scissors
• Phillips screwdriver (small) • Pliers
• Ruler • Side cutters
• Socket wrench: 11/32" • T-pins
Adhesives
• 6-minute epoxy (HAN8000) • 30-minute epoxy (HAN8002)
• Thin CA • Canopy glue
• Zap-A-Dap-A-Goo • Threadlock
Other Required Items
• Epoxy brushes • Felt-tipped pen or pencil
• Measuring device (e.g. ruler, tape measure) • Mixing sticks for epoxy
• Paper towels • Rubbing alcohol
• Masking tape • Sanding bar
• Sandpaper • Rotary tool w/sanding drum
• Sealing Iron (HAN101) • Covering Glove (HAN150)
• Sealing Iron Sock (HAN141)
Covering Colors
• Midnight Blue (HANU885)
• Sky Blue (HANU875)
• White (HANU870)
Required Field Equipment
• Propeller • Fuel
• Long Reach Glow Plug Wrench (HAN2510) • Metered Glow Driver w/Ni-Cd & Charger (HAN7101)
• 2-Cycle Sport Plug (HAN3001) • 2-Cycle Super Plug (HAN3006)
• 4-Cycle Super Plug (HAN3011) • Manual Fuel Pump (HAN118)

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Limited Warranty & Limits of Liability
Pursuant to this Limited Warranty, Horizon Hobby, Inc. will, at its option, (i) repair or (ii) replace, any product determined
by Horizon Hobby, Inc. to be defective. In the event of a defect, these are your exclusive remedies.
This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse, abuse, negligence,
commercial use, or modification of or to any part of the product. This warranty does not cover damage due to improper
installation, operation, maintenance, or attempted repair by anyone other than an authorized Horizon Hobby, Inc. service
center. This warranty is limited to the original purchaser and is not transferable. In no case shall Horizon Hobby’s
liability exceed the original cost of the purchased product and will not cover consequential, incidental or collateral
damage. Horizon Hobby, Inc. reserves the right to inspect any and all equipment involved in a warranty claim. Repair
or replacement decisions are at the sole discretion of Horizon Hobby, Inc. Further, Horizon Hobby reserves the right to
change or modify this warranty without notice.
REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE CONSUMER.
HORIZON HOBBY, INC. SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.
As Horizon Hobby, Inc. has no control over use, setup, final assembly, modification or misuse, no liability shall be
assumed nor accepted for any resulting damage or injury. By the act of use, setup or assembly, the user accepts all
resulting liability.
If you as the purchaser or user are not prepared to accept the liability associated with the use of this product, you are
advised to return this product immediately in new and unused condition to the place of purchase.
Safety Precautions
This is a sophisticated hobby product and not a toy. It must be operated with caution and common sense and requires
some basic mechanical ability. Failure to operate this product in a safe and responsible manner could result in injury or
damage to the product or other property. This product is not intended for use by children without direct adult supervision.
The product manual contains instructions for safety, operation and maintenance. It is essential to read and follow all
the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid
damage or injury.
Questions, Assistance, and Repairs
Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use
of the product has been started, you must contact Horizon Hobby, Inc. directly. This will enable Horizon to better answer
your questions and service you in the event that you may need any assistance.
Questions or Assistance
For questions or assistance, please direct your email to [e-mail], or call 877.504.0233 toll
free to speak to a service technician.

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Inspection or Repairs
If your product needs to be inspected or repaired, please call for a Return Merchandise Authorization (RMA). Pack the
product securely using a shipping carton. Please note that original boxes may be included, but are not designed to
withstand the rigors of shipping without additional protection. Ship via a carrier that provides tracking and insurance for
lost or damaged parcels, as Horizon Hobby, Inc. is not responsible for merchandise until it arrives and is accepted at
our facility. Include your complete name, address, phone number where you can be reached during business days, RMA
number, and a brief summary of the problem. Be sure your name, address, and RMA number are clearly written on the
shipping carton.
Warranty Inspection and Repairs
To receive warranty service, you must include your original sales receipt verifying the proof-of-purchase date. Providing
warranty conditions have been met, your product will be repaired or replaced free of charge. Repair or replacement
decisions are at the sole discretion of Horizon Hobby.
Warranty Information
Horizon Hobby, Inc. guarantees this kit to be free from defects in both material and workmanship at the date of purchase.
This warranty does not cover any parts damage by use or modification. In no case shall Horizon Hobby’s liability exceed
the original cost of the purchased kit. Further, Horizon Hobby reserves the right to change or modify this warranty without
notice. In that Horizon Hobby has no control over the final assembly or material used for the 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.
Once assembly of the model has been started, you must contact Horizon Hobby, Inc. directly regarding any warranty
question that you have. Please do not contact your local hobby shop regarding warranty issues, even if that is where you
purchased it. This will enable Horizon to better answer your questions and service you in the event that you may need any
assistance. 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.
Horizon Hobby
4105 Fieldstone Road
Champaign, Illinois 61822
[phone]
Using the Manual
This manual is divided into sections to help make assembly easier to understand, and to provide breaks between each
major section. In addition, check boxes have been placed next to each step to keep track of each step completed. Steps
with a single box () are performed once, while steps with two boxes () indicate that the step will require
repeating, such as for a right or left wing panel, two servos, etc. Remember to take your time and follow the directions.

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Non-Warranty Repairs
Should your repair not be covered by warranty and the expense exceeds 50% of the retail purchase cost, you will be
provided with an estimate advising you of your options. You will be billed for any return freight for non-warranty repairs.
Please advise us of your preferred method of payment. Horizon Hobby accepts money orders and cashiers checks, as
well as Visa, MasterCard, American Express, and Discover cards. If you choose to pay by credit card, please include your
credit card number and expiration date. Any repair left unpaid or unclaimed after 90 days will be considered abandoned
and will be disposed of accordingly.
Electronics and engines requiring inspection or repair should be shipped to the following address (freight prepaid):
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other products requiring inspection or repair should be shipped to the following address (freight prepaid):
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Warning
An RC aircraft is not a toy! If misused, it can cause serious bodily harm and damage to property. Fly only in open areas,
preferably at AMA (Academy of Model Aeronautics) approved flying sites, following all instructions included with your
radio and power systems.
Before Starting Assembly
Before beginning the assembly of the F6F Hellcat, remove each part from its bag for inspection. Closely inspect
the fuselage, wing panels, rudder, and stabilizer for damage. If you find any damaged or missing parts, contact the
place of purchase.
If you find any wrinkles in the covering, use a heat gun or sealing iron to remove them. Use caution while working around
areas where the colors overlap to prevent separating the colors.
HAN100 – Heat Gun
HAN150 – Covering Glove
HAN101 – Sealing Iron
HAN141 – Sealing Iron
Sock

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Required Parts
• Quick connector retainer (2) • 3mm setscrew (2)
• Retract servo tray rail (2) • Retract servo tray
• 3 1/4" (82.5mm) main wheel (2)
• 5/32" wheel collar (4)
• 3mm x 10mm screw (8) • 3mm washer (8)
• 3mm lock nut (8) • Aluminum bracket (4)
• Landing gear door (L&R) • 3mm setscrew (4)
• Quick connector (2) • Wheel well (2)
• Quick connector washer (2)
Required Tools and Adhesives
• 6-minute epoxy • Thick CA
• Retract Servo (JRPS791) • Hobby knife
• Drill • Rubbing alcohol
• Drill bit: 1/16" (1.5mm), 5/64" (2mm), 1/8" (3mm)
• Hex wrench (included in kit) • Paper towel
Step 1
Use 6-minute epoxy to glue the two retract servo
tray rails into the wing. Make sure the rails
rest on the bottom sheeting of the wing.
Step 2
Locate the retract servo tray. Use 6-minute epoxy
to glue the servo tray into position. Keep the retract
actuating wires on the top side of the servo tray.
Step 3
Install the low-profile retract servo in the servo
tray using the hardware provided with the servo.
Prevent splitting the servo tray by drilling 1/16"
(1.5mm) holes for the servo mounting screws.
Section 1: Retract Linkage Installation

9
Step 4
Select a servo arm from those included with your
servo that has a distance of 1" (25mm) between
equally spaced holes as shown. Use a 5/64" (2mm)
drill bit to drill the appropriate holes in the arm.
Step 5
Attach two quick connectors to the servo arm
using quick connector washers and retainers.
Step 6
Connect the retract servo to your radio system
and electronically move the servo to the
retracted position. Slide the retract control wires
through the quick connectors as shown and
secure the servo arm to the retract servo.
Step 7
With the retract servo in the up position, use
the linkage to manually retract the landing gear.
Install a 3mm setscrew into the quick connectors
and tighten them to secure the linkage.
Section 1: Retract Linkage Installation

10
Step 8
Check the actuation of the retracts, making sure
they fully lock in both the up and down positions.
Make any necessary adjustments to the linkages as
necessary for proper operation of the retracts.
Hint: Adjustments and fine tuning can
also be made to the retract linkages
from inside the wheel wells.
Step 9
Install the wheel wells once the retracts have been
adjusted. Roughen the bottom side of the well and
surrounding covering using medium sandpaper. Clean
both the wing and wheel well using rubbing alcohol and
a paper towel. Trace around the wheel well onto the wing.
Use a sharp hobby knife to remove the covering to expose
the underlying wood. Glue the wells using 6-minute epoxy.
Hint: Use clear tape and tape the wells into
position when flying from rough surfaces.
This will allow easy access to the linkages in
case they might need future adjustments.
Step 10
Install a wheel and two wheel collars on the main
landing gear. The order of items is 5/32" wheel collar,
wheel, and then another wheel collar. Secure the collars
using the 3mm setscrews. Use threadlock to prevent
the wheel collars from vibrating loose during flight.
Section 1: Retract Linkage Installation

11
Note: The retract has been removed
from the aircraft for clarity. Do not
over-tighten the screw or the retract
will bind and not operate correctly.
Step 11
With the retract extended, physically check to make
sure the retract does not move fore or aft by moving
the strut as shown in Step 10. Tighten the adjustment
screw in the front of the retract to eliminate any
play when in the down and locked position.
Step 12
If you notice that the retract has play when fully
retracted, it may be necessary to tighten the adjustment
screw on the retract to eliminate this. The screw
is located inside the retract, so it will have to be
removed from the aircraft to make this adjustment.
Step 13
The landing gear door is attached using two aluminum
brackets, four 3mm x 10mm screws, four 3mm washers
and four 3mm nuts. Draw a centerline down the backside
of the landing gear door to aid in alignment. Pre-drill the
landing gear doors for the screws using a 1/8" (3mm)
drill bit. Make sure the location of the aluminum brackets
does not interfere with the operation of the retracts.
Note: It is suggested to leave the
gear doors off when flying from
grass or other rough surfaces.
Step 14
Repeat Steps 8 through 13 to complete the
retract installation.
Section 1: Retract Linkage Installation

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Required Parts
• Outer wing panel (L&R) • Aileron (left and right)
• Nylon clevis (2) • Clevis retainer (2)
• CA hinges (6) • #2 x 3/4" screw (6)
• #2 x 3/8" sheet metal screw (8)
• Servo (2)
• Long servo arm (JRPA212) (2)
• 6" (153mm) pushrod wire (2)
• Control horn w/backplate (2)
• Servo Extension, 18" (458mm) (2) (JRPA099)
• 3/8" x 3/4" x 3/4" (9.5mm x 19mm x 19mm)
servo mounting block (4)
Required Tools and Adhesives
• Thin CA • T-pins
• Drill • 6-minute epoxy
• Ruler • Felt-tipped pen
• Drill bit: 1/16" (1.5mm), 5/64" (2mm),
3/32" (2.5mm)
Step 1
Use a 1/16" (1.5mm) drill bit to drill a hole in the
center of each hinge location. Drill holes in both the
wing and aileron. This creates a tunnel for the CA to
wick into, allowing for a better bond of the hinge.
Step 2
Locate three CA hinges. Place a T-pin in the center
of each hinge.
Step 3
Place the hinges in the precut slots in the
aileron. The T-pin will rest against the leading
edge of the aileron when installed correctly.
Section 2: Aileron Installation

13
Step 4
Slide the aileron and wing together. The gap between
the leading edge of the aileron and wing should be a
maximum of approximately 1/64" (.4mm). Check to
make sure the gap at the ends of the aileron are equal
and the aileron can move without rubbing on the wing.
Note: Do not use CA accelerator during
the hinging process. The CA must be
allowed to soak into the hinge to provide
the best bond. Using accelerator will not
provide enough time for this process.
Step 5
Remove the T-pins and move the aileron to provide
the best access to the hinge. Apply thin CA to each
hinge. Make sure the hinge is fully saturated with
CA. Use a paper towel and CA remover/debonder to
clean up any excess CA from the wing and/or aileron.
Make sure to apply CA to both sides of the hinges.
Step 6
Firmly grasp the wing and aileron and gently pull
on the aileron to ensure the hinges are secure and
cannot be pulled apart. Use caution when gripping the
wing and aileron to avoid crushing the structure.
Step 7
Work the aileron up and down several times to work
in the hinges and check for proper movement.
Section 2: Aileron Installation

14
Step 8
Remove the aileron hatch from the wing. Remove
the covering from the slot for the aileron horn.
Note: The aileron servo is
mounted directly to the hatch.
Step 9
Install the recommended servo hardware (grommets
and eyelets) supplied with the servo. Cut one arm off
a long half servo arm (JRPA212) and attach it to the
servo and position the servo onto the hatch so the
servo arm is centered in the notch. Once satisfied,
mark the location for the servo mounting blocks.
Step 10
Locate the servo mounting blocks. Use 6-minute
epoxy to glue the blocks to the hatch. Let the epoxy
fully cure before proceeding to the next step.
Step 11
Place the aileron servo between the mounting
blocks and use a felt-tipped pen to mark the
location of the four servo mounting screws.
Note: The servo must not touch the hatch
in order to isolate engine vibration.
Note: Before mounting the servo, it is
suggested to electronically center the
servo using the transmitter, then install
the servo arm to avoid having to remove
the servo and center the arm later.
Section 2: Aileron Installation

15
Note: It may be necessary to slightly
trim one of the servo mounting
blocks to clear the servo wire.
Step 12
Remove the servo and use a 1/16" (1.5mm) drill bit to
predrill the holes for the servo mounting screws marked
in the previous step. Use the screws supplied with
the servo to mount it to the servo mounting blocks.
Step 13
Connect an 18" (458mm) Servo Lead extension
(JRPA099) to the servo lead. Secure the connectors by
tying them in a knot using dental floss (as shown) or
by using a commercially available connector clamp to
prevent the servo leads from becoming disconnected.
Note: It is always a good idea to secure the
servo connector and servo extension together
to prevent the wires from becoming unplugged.
Step 14
Tie the preinstalled string onto the servo extension.
Tie a small weight onto the string at the root
of the outer panel. Use the string and weight
to pull the extension out of the tip panel.
Step 15
Place the hatch cover in position in the aileron
opening. Measure in 1/8" (3mm) on all four
sides of the hatch. Drill four 1/16" (1.5mm) holes
at the intersections of the lines as shown.
Note: Drill through the servo hatch and the
underlying hatch mounts. Use caution not to
accidentally drill through the top of the wing.
Section 2: Aileron Installation

16
Step 16
Remove the servo hatch cover and re-drill the holes
using a 5/64" (2mm) drill bit. Use 2–3 drops of thin
CA to harden the underlying wood. This will prevent
the screws from crushing the wood when they are
tightened. Secure the hatch using four #2 x 3/8" screws.
Step 17
Remove the back plate from a control horn
using side cutters or a sharp hobby knife.
Step 18
Position the control horn on the aileron so the
horn aligns with the aileron servo horn and the
aileron hinge line. Mark the position for the
mounting holes using a felt-tipped pen.
Step 19
Drill three 3/32" (2.5mm) holes at the
locations marked in the previous step.
Section 2: Aileron Installation

17
Step 20
Attach the control horn using three #2 x 3/4"
screws and the control horn backplate.
Note: Cut the excess screw extending from
the control horn backplate using side cutters.
Step 21
Slide a clevis retainer onto a nylon clevis. Thread a clevis
onto a 6" (153mm) pushrod wire a minimum of 10 turns.
Step 22
Center the aileron servo electronically using the
radio system. Attach the pushrod with clevis to
the control horn. Physically place the aileron
control surface in neutral. Mark the pushrod
where it crosses the holes in the servo arm.
Step 23
Bend the wire 90 degrees at the mark made in the
previous step. Cut the wire 3/8" (9.5mm) above the bend.
Step 24
Use a 5/64" (2mm) drill to enlarge the outer hole
in the servo arm. Slide the wire through the hole.
Secure the wire using a nylon wire keeper.
Step 25
Repeat Steps 1 through 24 for the other aileron servo.
Section 2: Aileron Installation

18
Required Parts
• Left and right wing panels • Center wing panel
• Wing joiner (2)
Required Tools and Adhesives
• Masking tape • 30-minute epoxy
• Epoxy brush • Mixing stick
• Rubbing alcohol • Paper towels
• Sealing iron • Measuring cup
Step 1
Test the fit of the wing joiner into the outer wing
panel and the center panel. The forked end is
inserted into the center panel. The joiner should
slide into each with little resistance. Lightly sand
the joiner as necessary to achieve a proper fit.
Note: The joiner will be angled
towards the top of the wing.
Step 2
Without using any glue, test fit the wing panel and center
panel together using the wing joiner. The panels must
fit together without any gaps top or bottom. If any gaps
do exist, use a sanding bar to lightly sand the root ribs
of both panels until the panels fit together perfectly.
Step 3
Tuck the servo lead back into the tip panel. Place
the weight inside the outer panel, but do not tape
it in, as it will eventually drop through the center
panel and out the opening for the retract servo.
Note: Read through the remaining steps
of this section before mixing any epoxy.
Section 3: Joining the Wing Panels

19
Hint: It is extremely important to use
plenty of epoxy when joining the wing
panels. It will also be helpful to use
wax paper under the wing joint to avoid
gluing the wing to your work surface.
Step 4
Mix approximately 1 ounce of 30-minute epoxy. Using
an epoxy brush, apply a generous amount of epoxy
to the wing joiner cavity of the outer wing panel.
Step 5
Completely coat the section of the wing joiner that will
be inserted into the outer panel with epoxy. Be sure to
apply epoxy to the top and bottom of the joiner also.
Insert the epoxy-coated side of the joiner into the
outer wing joiner cavity up to the mark on the joiner.
If you have used enough epoxy, it will ooze out of the
cavity as the joiner is installed. Remove any excess
epoxy using a paper towel and rubbing alcohol.
Step 6
Apply a generous amount of epoxy to the joiner
cavity and root rib of the center wing panel.
Note: Be careful not to get epoxy in
the area of the retract linkage.
Step 7
Apply epoxy to the exposed portion of the wing
joiner and to the root wing rib of both panels.
Section 3: Joining the Wing Panels

20
Step 8
Carefully slide the wing panels together. Apply enough
pressure to firmly seat the two wing panels together,
causing any excess epoxy to ooze out from between
the panels. Use rubbing alcohol and a paper towel
to remove the excess epoxy. Check to make sure
there are no visible gaps between the panels.
Step 9
Use masking tape to securely hold the wing
panels together. Allow the epoxy to fully cure
before continuing to the next section.
Step 10
Once the epoxy has fully cured, use a sealing iron to apply
the trim to the joint between the outer panel and center
panel. Position the wing so the tip panel is up. The weight
should fall to the center where it can be retrieved from the
opening for the retract servo. Pull the servo lead through.
Step 11
Repeat Steps 1 through 10 for the remaining wing panel.
Section 3: Joining the Wing Panels