E-flite P-51B User Manual
P-51B Mustang 32e ARF
Assembly Manual
Notice
All instructions, warranties and other collateral
documents are subject to change at the sole
discretion of Horizon Hobby, Inc. For up-to-date
product literature, visit http://www.horizonhobby.
com and click on the support tab for this product.
Meaning of Special Language
The following terms are used throughout the product
literature to indicate various levels of potential harm
when operating this product:
NOTICE: Procedures, which if not properly followed,
create a possibility of physical property damage
AND a little or no possibility of injury.
CAUTION: Procedures, which if not properly followed,
create the probability of physical property damage
AND a possibility of serious injury.
WARNING: Procedures, which if not properly followed,
create the probability of property damage, collateral
damage, and serious injury OR create a high
probability of superficial injury.
WARNING: Read the ENTIRE instruction
manual to become familiar with the features of the
product before operating. Failure to operate the
product correctly can result in damage to the
product, personal property and cause serious injury.
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. Do not attempt disassembly,
use with incompatible components or augment
product in any way without the approval of Horizon
Hobby, Inc. This 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
serious injury.
Warnings
Read and follow all instructions and safety precautions
before use. Improper use can result in fire, serious
injury and damage to property.
Age Recommendation: Not for children under 14
years. This is not a toy.
COMPONENTS
Use only with compatible components. Should any
compatibility questions exist please refer to the product
instructions, the component instructions or contact
Horizon Hobby, Inc.
FLIGHT
Fly only in open areas to ensure safety. It is
recommended flying be done at AMA (Academy of
Model Aeronautics) approved flying sites. Consult local
laws and ordinances before choosing a location to fly
your aircraft.
PROPELLER
Keep loose items that can get entangled in the
propeller away from the prop, including loose clothing,
or other objects such as pencils and screwdrivers.
Especially keep your hands away from the propeller as
injury can occur.
BATTERIES
Notes on Lithium Polymer Batteries
When misused, lithium polymer batteries are
significantly more volatile than alkaline or Ni-Cd/
Ni-MH batteries used in RC applications. Always
follow the manufacturer’s instructions when using and
disposing of any batteries. Mishandling of Li-Po batteries
can result in fire causing serious injury and damage.
SMALL PARTS
This kit includes small parts and should not be left
unattended near children as choking and serious injury
could result.
SAFETY PRECAUTIONS
• Checkallcontrolsurfacespriortoeachtakeoff.
• Donotflyyourmodelnearspectators,parkingareas
or any other area that could result in injury to people
or damage of property.
• Donotflyduringadverseweatherconditions.Poor
visibility can cause disorientation and loss of control
of your aircraft. Strong winds can cause similar
problems.
• Donottakechances.Ifatanytimeduringflightyou
observe any erratic or abnormal operation, land
immediately and do not resume flight until the cause
of the problem has been ascertained and corrected.
Safety can never be taken lightly.
• Donotflynearpowerlines.
2 E-flite P-51B Mustang 32e ARF Assembly Manual
Table of Contents
Introduction
Using the Manual
Notice ................................................................... 2
Meaning of Special Language ................................. 2
Warnings .............................................................. 2
Introduction ........................................................... 3
Important Information Regarding
Warranty Information ..................................... 3
Specifications ......................................................... 3
Using the Manual ................................................... 3
Contents of Kit/Parts Layout .................................... 3
Covering Colors ..................................................... 3
Hardware/Accessory Sizes ..................................... 4
Recommended Radio Equipment ............................. 4
Power 32 Motor Setup (Recommended) ................... 4
Power 25 Motor Setup ........................................... 4
Optional Accessories .............................................. 4
Optional Retracts ................................................... 4
Optional Scale Accessories ..................................... 4
Hinging the Control Surfaces .................................. 5
Tail Wheel Installation ............................................ 8
Stabilizer and Rudder Installation .......................... 10
Motor and Cowling Installation ............................. 12
Rudder Servo, Elevator Servo and
Receiver Installation ...................................... 14
Propeller and Spinner Installation .......................... 18
Aileron Servo Installation ...................................... 19
Flap Servo Installation .......................................... 22
Fixed Gear Installation ......................................... 25
Retract Installation ................................................ 26
Cockpit Details ..................................................... 29
Final Assembly and Center of Gravity ................... 29
Installing the Optional Ordinance Pylons ............... 31
Decal Placement ................................................... 33
Detailing Your P-51B Mustang .............................. 36
Control Throws..................................................... 40
Preflight ............................................................... 40
Flying Your P-51B Mustang 32e ARF ..................... 41
Range Test Your Radio .......................................... 41
Daily Flight Checks ............................................... 42
Warranty and Repair Policy .................................. 42
Warranty Services ................................................ 43
Compliance Information for the European Union .... 43
2010 Official Academy of
Model Aeronautics Safety Code .................... 44
The razorback P-51B Mustang was the first Mustang
to match North American’s sleek airframe with the
awesome power of a Rolls-Royce Merlin engine. It
was this Mustang that gave the Allies their first truly
capable bomber escort and Luftwaffe pilots their first
taste of things to come.
The E-flite
expertly captures the look and feel of this landmark
WWII fighter with a scale outline so faithful to form as
to be practically indistinguishable from the real thing.
Every detail has been pushed to the limits of model
size and engineering with features like concealed
pocket hinges, airfoil-shaped tail surfaces, aluminum
painted spinner, and a painted fiberglass cowl that
blends seamlessly into the fuselage.
You can push the scale realism even further with
options like electric retracts, a full depth cockpit, static
4-bladed propeller, and functional bomb/drop tank
wing mounts. The model has been designed to accept
all of these options with minimal modification. And
when you’re done, you will have a competition-level
scale Mustang that will make every flight unforgettable.
®
Platinum Series P-51B Mustang 32e ARF
Important Information
Regarding Warranty Information
Please read our Warranty and Liability Limitations
section on Page 42 before building this product. 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.
Specifications
Wingspan: 52.0 in (1320mm)
Wing Area: 460 sq in (29.7 sq dm)
Length: 45.5 in (1160mm)
Weight with Battery: 5.25–6.00 lb (2.40–2.70 kg)
Weight w/o Battery: 4.50–5.00 lb (2.00–2.30 kg)
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 its completion. Steps with a single circle () are
performed once, while steps with two circles ( )
indicate 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.
Contents of Kit/Parts Layout
Replacement Parts
EFL4575001 Wing Set
EFL4575002 Fuselage
EFL4575003 Tail Set
EFL4575004 Rudder
EFL4575005 Cowling
EFL4575006 Belly Scoop
EFL4575007 Pushrod Set
EFL4575008 Bomb Set
EFL4575011 Hardware Pack
EFL4575015 3-inch Aluminum Spinner
Covering Colors
HANU904 Olive Drab
HANU882 Light Gray
HANU870 White
3E-flite P-51B Mustang 32e ARF Assembly Manual
Hardware/Accessory Sizes
Power 25 Motor Setup
Required Tools and Adhesives
Main wheel diameter 21/2-inch (63mm)
Tail wheel diameter 1-inch (25mm)
Nylon wing bolt 10-32 x 21/2-inch
Recommended Radio Equipment
You will need a minimum 5-channel transmitter,
receiver and six servos. You can choose to purchase
a complete radio system. If you are using an
existing transmitter, just purchase the other required
equipment separately. We recommend the crystalfree, interference-free Spektrum™ DX8 2.4GHz DSM®
8-channel system. If using your own transmitter, we
recommend the following radio equipment.
If you own the Spektrum DX8 radio, or you are using
a different DSM2 radio, just add the AR7600 DSM2™
7-channel receiver and six JR SPORT
Complete Radio System
SPM8800 DX8 DSM2 8CH system
Or Purchase Separately
SPMAR7600 AR7600 DSM2 6-Channel
Full-Range Receiver
JSP20030 MC35 Servo (6)
JSP98030 12-inch (305mm)
Servo Extension (2)
aileron servo inside wing
JRPA135 Y-harness (2)
flaps and aileron to receiver
JSP98100 3-inch (76mm) Servo Extension
Ordinance servo to receiver
EFLRS75 Sub Micro Servo (optional
ordinance servo)
JRPA211 Offset Servo Horn
™
MC35 servos.
Power 32 Motor Setup (Recommended)
EFLM4025A Power 25 BL Outrunner
Motor, 870Kv
EFLA1060 60-Amp Pro Switch-Mode BEC
Brushless ESC
EFLB32004S30 3200mAh 4S 14.8V 30C Li-Po,
12AWG EC3
APC11080E 11 x 8E Electric Propeller
Optional Accessories
EFLA110 Power Meter
EFLC505 Intelligent 1- to 5-Cell
Balancing Charger
EFLAEC312 Charge Lead with 12-inch
Wire and Jacks, 16AWG
Optional Retracts
EFLG310 85-degree Electric Retracts
Optional Scale Accessories
EFL4575012 Decals Set Ill Wind
EFL4575013 Decal Set Bee
EFL4575014 Decal Set Turnip Termite
EFL4575008 Bomb Set
EFL4575009 Drop Tank Set
EFL4575010 Scale Prop and Spinner
HAN9108 Scale Pilot Bust
Tools & Equipment
Balancing stand Covering iron
Epoxy brush Felt-tipped pen
Flat file Flat blade screwdriver
Low-tack tape Mixing cups
Mixing sticks Open end wrench: 12mm
Paper towels Petroleum jelly
Pin vise Rotary tool with cut-off wheel
Rubbing alcohol Ruler
Scissors Side cutter
String Tapered propeller reamer
Toothpick Plastic squeegee
Spray bottle Dishwashing liquid
Trim seal tool
Drill bit: 5/64-inch (2mm)
Hobby knife with #11 blade
Hex wrench or ball driver: 1.5mm, 2.5mm, 3mm
3/32-inch
Phillips screwdriver: #1, #2
Adhesives
12-minute epoxy 30-minute epoxy
Threadlock Hinge glue
Medium CA Thin CA
During the course of building your model we
suggest you use a soft base for the building surface.
Such things as a foam stand, large piece of
bedding foam or a thick bath towel will work well
and help protect the model from damage during
assembly. This is not shown in the instructions
to provide the greatest detail in the photos.
EFLM4032A Power 32 Brushless Outrunner
Motor, 770Kv
EFLA1060 60-Amp Pro Switch-Mode BEC
Brushless ESC
EFLB32004S30 3200mAh 4S 14.8V 30C Li-Po,
12AWG EC3
APC13065E 13 x 6.5E Electric Propeller, Thin
4 E-flite P-51B Mustang 32e ARF Assembly Manual
Hinging the Control Surfaces
Required Parts
Fuselage Rudder
Nylon hinge (20 total)
Stabilizer and elevator (right and left)
Hinge template: rudder, elevator and aileron
Wing panel with control surfaces (right and left)
Required Tools and Adhesives
Covering iron Trim seal tool
Petroleum jelly Paper towel
Toothpick Ruler
Felt-tipped pen Hinge glue
Water
3. Use a trim seal tool and covering iron to iron the
covering down on the control surface. Make sure
the covering is smooth around the hinge line or it
might bind when installed.
5. Insert the hinges into the control surface. Flex the
hinge in the direction of the control deflection. Check
that the hinge is perpendicular to the hinge line.
1. Locate the stabilizer assembly. Carefully remove
the elevator from the stabilizer.
2. Remove the hinges from the elevator. Note that
the hinge at the tip has been trimmed shorter than
the remaining hinges.
4. Prepare the hinges by applying a small amount
of petroleum jelly using a toothpick to the knuckle
of the hinge. Work the hinge so the petroleum jelly
penetrates the hinge. The petroleom jelly will keep
the adhesive from entering the knuckle, causing the
hinge to bind.
Read through the following steps on positioning
the hinges before applying any glue. Improper
installation of the hinges will cause the control
surfaces to bind, which can cause premature drain
on the battery or even damage to the servos.
6. Check the depth of the hinges using the
appropriate template. The template will rest flush
against the hinge line with the end of the hinge
just touching the template as shown in line with the
center of the control surface.
5E-flite P-51B Mustang 32e ARF Assembly Manual
7. Remove the hinges and apply a small amount of
hinge glue in each of the holes in the control surface
for the hinges. Follow Steps 5 and 6 to insert the
hinges in the control surface. Allow the adhesive
to fully cure before attaching the control surface.
Attaching the control surface before the adhesive
cures may change the location of the hinge and
cause binding.
10. While the hinge glue is curing, use a covering
iron or trim seal tool to iron the covering on the
fixed surface. Make sure the covering has no
wrinkles and is ironed tightly, especially near the
hinge line of the surfaces. Check the stabilizers,
wing and fuselage at this time.
11. Fit the control surface to the fixed surface.
Check that the control surface can move to the
throws specified without any binding. If binding
occurs, adjust the position or determine where the
binding is occurring and correct as necessary.
8. Once the hinges are in place, use a paper towel
and the appropriate solvent (water for hinge glue,
rubbing alcohol for epoxy) to remove any excess
adhesive that may have seeped out when the hinges
were installed.
9. Repeat Steps 1 through 8 for the
remaining stabilizer and elevator, as well as the
ailerons and rudder. Do not hinge the flaps at
this time.
Read through the following steps on positioning the
control surfaces before applying any glue. Improper
installation of the surfaces will cause the control
surfaces to bind, which can cause premature drain
on the battery or even damage to the servos.
Ensure you have at least this much control
throw when surfaces are installed.
Elevator:
1/2-inch (13mm) up and down
Aileron:
3/8-inch (9mm) up and down
Rudder:
11/4-inch (32mm) right and left
6 E-flite P-51B Mustang 32e ARF Assembly Manual
12. Remove the control surface and apply a small
amount of hinge glue in each of the holes in the
fixed surface for the hinges. Insert the hinges,
attaching the control surface and fixed surface.
Allow the adhesive to fully cure before proceeding.
13. Once the hinges are in place, use a paper
towel and water to remove any excess adhesive
that may have seeped out when the hinges were
installed.
15. Prepare the flap hinges by applying a small
amount of petroleum jelly to the knuckle of the
hinge. Work the hinge so the petroleum jelly
penetrates the hinge. The petroleom jelly will keep
the adhesive from entering the knuckle, causing the
hinge to bind.
16. Fit the hinges in the flap so the hinge point is
recessed into the flap 3/32-inch (4mm).
17. Position the flap on the wing. Align the flap
with the aileron and the inboard section of the
trailing edge.
18. Check that the flap can move through its range
of motion. If there is binding, reposition the hinges
and recheck the flap operation.
14. Repeat Steps 11 through 13 for
the remaining stabilizer and elevator, as well as
the ailerons and rudder.
Hinging the flaps will take a small amount of trial
and error to correctly position the hinges. Read
through the following steps on positioning the
control surfaces before applying any glue. Improper
installation of the surfaces will cause the control
surfaces to bind, which can cause premature drain
on the battery or even damage to the servos.
7E-flite P-51B Mustang 32e ARF Assembly Manual
19. Inspect the hinges and mark on the flap where
the hinge point is in reference to the flap using a
felt-tipped pen.
20. Remove the flap from the wing. Make sure the
hinges are removed from the flap and wing at this
time. Apply a small amount of hinge glue in each of
the holes in the control surface for the hinges. Insert
the hinges so the hinge point aligns with the mark
made in the previous step. Allow the adhesive to
fully cure before proceeding.
21. Apply hinge glue in the holes for the hinges
in the trailing edge. Insert the flap hinges into the
trailing edge of the wing. Repeat Step 16 and 17
to check the position of the hinges. Wrap a small
amount of low-tack tape around the flap and inner
trailing edge, and around the flap and aileron to
keep it in position. Set the wing aside to allow the
adhesive to fully cure.
22. Repeat Steps 15 through 21 to attach the
remaining flap to the opposite wing panel.
Tail Wheel Installation
Required Parts
Fuselage Pre-bent tail wheel wire
2mm wheel collar 1-inch (25mm) tail wheel
Nylon steering arm 3mm x 4mm machine screw
3mm x 4mm setscrew
18-inch (457mm) pushrod wire, non-threaded
Required Tools and Adhesives
Hex wrench or ball driver: 1.5mm
Threadlock Phillips screwdriver: #1
The following covers the installation of a fixed tail
wheel as supplied with your model. We have designed
the model so there is room to install a retractable
tail wheel if so desired. The installation will be up
to the modeler, as there are a variety of options
available. The radio tray also has an extra opening
to fit the servo necessary to operate this retract.
1. Connect the 18-inch (457mm) pushrod wire to
the nylon steering arm. Note the position of the arm
in relationship to the bend in the pushrod wire.
Ensure your flaps can travel at least 11/2-
inch (38mm) down for full defelection.
8 E-flite P-51B Mustang 32e ARF Assembly Manual
2. Slide the pushrod wire into the tube in the
fuselage. Make sure the pushrod is located in the
correct tube or the steering arm and servo will not
line up with the pushrod correctly.
Always use threadlock on metal-to-metal fasteners
to prevent them from vibrating loose.
3. Use a 1.5mm hex wrench to start the 3mm x
4mm setscrew in the steering arm.
4. Locate the pre-bent tail wheel wire. Note the
position of the notch in the wire: this will be aligned
with the setscrew in the steering arm to prevent the
wire from rotating when installed.
5. Position the steering arm in the bracket as shown.
Slide the tail wheel wire through the bracket and
steering arm. Tighten the setscrew in the steering
arm on the flat of the tail wheel wire. Use a 1.5mm
hex wrench to tighten the setscrew.
Always use threadlock on metal-to-metal fasteners
to prevent them from vibrating loose.
6. Slide the 1-inch (25mm) tail wheel on the tail
wheel wire. Use a 3mm x 4mm machine screw and
2mm wheel collar to secure the tail wheel to the
wire. Use a #1 Phillips screwdriver to tighten the
screw in the wheel collar.
9E-flite P-51B Mustang 32e ARF Assembly Manual
Stabilizer and Rudder Installation
Required Parts
Fuselage Nylon control horn (3)
3mm x 15mm hardwood dowel (2)
Carbon stabilizer tube
2mm x 8mm sheet metal screw (6)
Stabilizer assembly (right and left)
Required Tools and Adhesives
12-minute epoxy Mixing cups
Mixing sticks Epoxy brush
Rubbing alcohol Paper towels
Ruler Hobby knife with #11 blade
Thin CA Phillips screwdriver: #1
Low-tack tape
1. Use a hobby knife with a #11 blade to remove
the control horn backplate from the control horn.
You can discard the backplate as it will not be used
when installing the control horn. Prepare all three
horns at this time.
2. Wick 2–3 drops of thin CA into the holes in the
rudder for the control horn mounting screws. This will
harden the surrounding wood, reducing the chances
of the screws from pulling loose accidentally. You will
want to do this to the elevator holes as well at this
time.
3. Attach the rudder control horn to the rudder
using two 2mm x 8mm sheet metal screws and a #1
Phillips screwdriver.
4. Attach the control horns to the elevators
using 2mm x 8mm sheet metal screws and a
#1 Phillips screwdriver.
5. Insert the 3mm x 12mm hardwood dowel in the
stabilizer so 6mm of the dowel is exposed. Wick
2–3 drops of thin CA around the joint between the
dowel and stabilizer to secure its position. Prepare
both stabilizer halves at this time.
10 E-flite P-51B Mustang 32e ARF Assembly Manual
6. Slide the stabilizer tube into the fuselage. Position
the tube so it is centered. Use a small piece of lowtack tape on one side as a reference so you can
easily reposition the tube if it moves while installing
one of the stabilizer halves.
8. Remove the stabilizer from the fuselage. Mix 1/2
ounce (15mL) of 12-minute epoxy. Apply the epoxy
to the stabilizer tube, exposed wood on the fuselage,
in the stabilizer tube socket of the stabilizer and to
the exposed wood on the stabilizer root.
9. Slide the stabilizer back into position. Use
rubbing alcohol and a paper towel to remove any
epoxy that has oozed out before it has a chance
to cure. Also check that the stabilizer tube is still
positioned correctly in the fuselage.
7. Test-fit one of the stabilizer halves on the
stabilizer tube. It should fit tightly against the
fuselage without moving the stabilizer tube. It should
also slide freely on the tube with only slight friction.
10. Remove the tape from the stabilizer tube.
Repeat steps 7 through 9 to install the remaining
stabilizer half.
11E-flite P-51B Mustang 32e ARF Assembly Manual
Motor and Cowling Installation
Required Parts
Fuselage Motor with accessories
Cowling Speed control
#4 washer (2) Hook and loop tape
Aluminum spacer, 1/8-inch (3mm)
Hook and loop strap (2)
3/16-inch (5mm) aluminum spacer (4)
4-40 x 3/4-inch socket head machine screw (4)
4-40 x 3/8-inch socket head machine screw (8)
Required Tools and Adhesives
Threadlock Ball driver: 3/32-inch
Scissors Phillips screwdriver: #2
3. Place the speed control in the fuselage as shown.
Route the leads through the oval hole in the battery
tray as shown in the photo.
Always use threadlock on metal-to-metal fasteners
to prevent them from vibrating loose.
The blind nuts in the firewall can be positioned
for a variety of different motor options. They
will slide easily and may not be in the correct
location for any one particular motor when the
fuselage is removed from the packaging.
Power setups: We found the best power
system for the P-51B is the Power 32 on
4S using an APC 13 x 6.5E prop. This
delivered solid flight performance with a
very acceptable current draw. All instructions
are regarding the Power 32 setup. If using a
Power 25 4S setup, please note the change on
the spacers for proper motor placement. The
Power 25 uses the 1/8-inch (3mm) spacers
only and the Power 32 uses the 1/8-inch
(3mm) and 3/16-inch (5mm) spacers.
1. Locate the motor, X-mount and hardware to
attach the mount to the motor. Use a #2 Phillips
screwdriver to install the screws that secure the
mount to the motor.
2. Use the four 4-40 x 3/4-inch socket head
screws, four 3/16-inch (5mm), and four 1/8-inch
(3mm) aluminum spacers to attach the motor to
the firewall. The spacers fit between the mount
and firewall. Use a 3/32-inch wrench to tighten
the screws.
4. Connect the motor and speed control leads. If
you are using the recommended motor and speed
control, connect the lead wires according to color
for the motor to rotate in the correct direction.
Secure the leads so they do not interfere with the
operation of the motor.
12 E-flite P-51B Mustang 32e ARF Assembly Manual
5. The canopy is held in position at the rear using
a magnet and tabs at the front. Lift the canopy at
the rear and slide it rearward to remove. Set the
canopy aside in a safe location. Your canopy came
in a box inside the kit. We are showing this in case
you had installed it.
7. Place a piece of hook and loop tape on the
battery floor, as well as on the bottom of the battery.
This will keep the battery from sliding fore and aft in
the fuselage.
9. Use two 4-40 x 3/8-inch socket head machine
screws and two #4 washers to secure the cowl to
the firewall. You will need to use a 3/32-inch ball
driver to tighten these screws.
6. Route the two hook and loop straps through the
slots in the battery tray. One will be located near
the front, while the other is located slightly aft of the
wing leading edge.
8. Slide the cowling in position. The pins at the top
and bottom of the cowling at the rear will fit into
the holes in the sub-firewall. The cowl will fit tightly
against the sub-firewall when installed correctly.
9. Use a small piece of hook and loop tape
or double-sided tape (not included) to secure
the switch in the fuselage. Make sure it is
positioned so the canopy hatch can be installed
without any interference.
13E-flite P-51B Mustang 32e ARF Assembly Manual
Rudder Servo, Elevator Servo
and Receiver Installation
Required Parts
Fuselage Motor battery (charged)
Transmitter Servo with hardware (2)
Receiver 3-inch (76mm) extension
Y-harness (2) Hook and loop tape (2)
Nylon clevis (3) Silicone clevis retainer (3)
221/2-inch (572mm) pushrod, threaded one end
Offset servo horn
Nylon pushrod connector backplate
3mm x 4mm machine screw
Brass pushrod connector
Nylon pushrod connector
Special Y-harness from retract (if installing the
recommended retracts)
Required Tools and Adhesives
Ruler Side cutters
Thin CA Threadlock
Pin vise Drill bit: 5/64-inch (2mm)
Felt-tipped pen Phillips screwdriver: #1
1. Prepare the rudder and elevator servos by
installing the brass eyelets and rubber grommets in
the servo. Also remove the stock servo horn using a
#1 Phillips screwdriver.
2. Apply 2–3 drop of thin CA in each of the servo
mounting holes in the radio tray.
3. Mount the rudder and elevator servos in the
radio tray. Note the direction of the servos in the
photo. Use the screws provided with the servos and
a #1 Phillips screwdriver to secure them in position.
4. Plug a Y-harness into the aileron and flap port of
your receiver. Plug the special Y-harness included
with your E-flite retracts into the gear port of the
receiver. Plug in a 3-inch extension into the Aux2
port if using the operational bombs or drop tanks.
Before starting the installation of the servos, we
recommend centering the trims and sticks on your
transmitter. If using a computer radio, make sure
to reset a model memory and name it for this
particular model. We also recommend binding the
transmitter and receiver at this time following the
instructions provided with your radio system.
14 E-flite P-51B Mustang 32e ARF Assembly Manual
5. Apply a piece of hook and loop tape to the
bottom of the receiver.
6. Plug the leads from the speed control, rudder
and elevator servos into the correct ports of the
receiver. Use the hook and loop tape to mount the
receiver in the fuselage as shown. Route the leads
through the hole in the battery tray to reduce clutter
inside the fuselage. The remote receiver is mounted
toward the rear of the fuselage as shown using
hook and loop tape.
7. Use the hook and loop straps to secure the motor
battery in the fuselage. Check that the power switch
is set to the OFF position and connect the leads
from the motor battery and speed control.
8. Center the rudder and elevator trims on the
transmitter. Set the throttle stick to the low throttle
position. Turn on the transmitter, then the receiver.
Place the servo horns on the rudder and elevator
servos as shown. Use a felt-tipped pen to mark the
servo arms as shown in the photo. These will be the
arms the pushrods will be connected to.
9. Remove the horn from the elevator servo. Use
side cutters to remove any unused arms so they
won’t interfere with the operation of the servo. Use
a pin vise and 5/64-inch (2mm) drill bit to enlarge
the hole in the horn that is 7/16-inch (11mm) from
the center of the servo horn.
10. Remove the horn from the rudder servo. From
a offset servo horn (not included), use side cutters
to remove any unused arms so they won’t interfere
with the operation of the servo. Use a pin vise and
5/64-inch (2mm) drill bit to enlarge the hole in the
horn that is 9/16-inch (15mm) from the center of
the servo horn. You will also need to enlarge the
hole that is 3/8-inch (9mm) from the center of the
horn using a pin vise and 5/64-inch (2mm) drill bit.
15E-flite P-51B Mustang 32e ARF Assembly Manual
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