Phase3 Models P-40 Warhawk EP User manual

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ASSEMBLY INSTRUCTIONS
IMPORTANT Before beginning assembly, please read and understand the warnings listed on the next page. Failure to read and
understand these warnings could lead to bodily harm and/or injury. The Phase 3 Models P-40 Warhawk EP RR is not intended for
those under 14 years of age, unless closely supervised by an adult.
SPECIFICATIONS AND FEATURES
lWing Span: 1000mm (39.5 Inches)
lWing Area: 17.75dm2 (275 Square Inches)
lLength: 851mm (33.5 Inches)
lFlying Weight: 710gr (25 Ounces)
lWing Loading: 40gr/dm2(13 Ounces Per Square Foot)
l Strong, Lightweight Foam Construction
l Almost Ready-to-Fly. Only Final Assembly Required
lMicro Servos Factory-Installed for Ailerons and Elevator
lMechanical Retractable Gear and Servo Installed
lPowerful Brushless Motor Included
lHi-Performance Electronic Speed Controller Included
lHi-Capacity 11.1V Lithium Polymer (Li-Po) Battery Included
l12V DC Li-Po Balancing Field Charger Included
lNo Glue Required!
© 2008, Phase 3 Models
All Rights Reserved - Version 1.0 October 2008
Kit Product Number PH018Made in China
CAUTION The Phase 3 Models P-40 Warhawk EP RR is designed
for advanced pilots. It is not intended for beginner pilots.
It is not a trainer!
The Curtiss P-40 was an American single-engine, single-seat, all-metal ghter and ground attack
aircraft that rst ew in 1938. It was used by the air forces of 28 nations, including those of most Allied
powers during World War II, and remained in frontline service until the end of the war. By November 1944,
when production of the P-40 ceased, 13,738 had been built. Warhawk was the name the United States Army Air
Corps adopted for all models, making it the ofcial name in the United States for all P-40s.
The Phase 3 Models P-40 Warhawk EP RR is an exciting, stand-off scale aircraft that features full four-channel control and
retractable landing gear! The moulded foam airframe is painted in an attractive camouage colour scheme and accented with authentic
decals, including those menacing sharks teeth on the cowl. The P-40 Warhawk EP RR is powered by an efcient yet powerful brushless motor and a
3 cell Li-Po battery. Rounding out these features are preinstalled micro servos and retractable landing gear for exceptional looks in the air and improved
ight characteristics. Just add your own transmitter and receiver, and you'll be ready to y sorties over your local aireld in no time!
Phase 3 Models
P.O. Box No. 402
Texaco Road PO
New Territories, Hong Kong

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TABLE OF CONTENTS
SAFETY WARNINGS
GENERAL WARNINGS
RADIO CONTROL SYSTEM WARNINGS
l Do not y your aircraft if another model is on the same frequency
as you. Before turning on your transmitter, make sure that there
are no other pilots ying on your frequency.
l Never y your aircraft from the street or at night. Always y in
an open area free of obstructions.
l When ying, make sure that any spectators are behind you.
lAlways be conscious of the spinning propeller. Be careful not
to allow loose clothing to be drawn into the propeller.
lBecause your aircraft is operated by radio control, it is important
to make sure you are always using fresh and/or fully charged
batteries (if using NiCD or NiMH batteries in your transmitter).
Never allow the batteries to run low or you could lose control of
the aircraft.
l Never attempt to disassemble any of the aircraft's components,
especially the servos, the ESC, and the Li-Po battery.
lDo not allow any of the components to get wet or electrical
damage may occur.
lAlways turn on your transmitter before plugging in the Li-Po
battery and always unplug the Li-Po battery before turning off
your transmitter.
lMake sure that your receiver antenna is fully extended or you
could lose control of the aircraft during ight.
l When ying the aircraft, make sure that your transmitter antenna
is completely extended.
lNever attempt to disassemble or modify any of the radio control
system components.
lYou should complete a successful range check of your radio
control system prior to each new day of ying, or prior to the
rst ight of a new or repaired aircraft.
lIf your aircraft gets dirty, do not use any solvents to clean it.
Solvents will damage the foam and plastic. Use a dry cloth to
clean any dirt from the outside of the aircraft.
LI-PO (LITHIUM POLYMER) BATTERY WARNINGS
lDO NOT leave the Li-Po battery unattended during the
charging process.
lALWAYS disconnect the Li-Po battery from the charger when
not in use.
lALWAYS place the Li-Po battery on a re-resistant surface during
the charging process and never charge the Li-Po battery near
any ammable material.
lALL instructions, warnings and cautions must be followed at
all times. Failure to do so can lead to serious injury or fire.
Instructions about charging the Li-Po battery can be found in
the Li-Po battery charging section.
lDO NOT use or charge the Li-Po battery if it's hot to the touch.
lDO NOT leave the Li-Po battery in direct sunlight or in a hot car
or storage area.
lDO NOT get the Li-Po battery wet or expose it to moisture.
lDO NOT short-circuit the Li-Po battery.
lDO NOT leave the Li-Po battery connected when not in use.
lDO NOT operate or charge the Li-Po battery unattended.
lALWAYS let the Li-Po battery cool between uses and charging.
lINSPECT the Li-Po battery before each use for swelling or
other malformation. If the Li-Po battery is damaged, it should
be discarded.
lWhen handling the Li-Po battery, do not poke, bend or damage it.
The Li-Po battery's outer casing is soft and can be damaged.
lDO NOT charge the Li-Po battery with reverse polarity.
lDO NOT overcharge. Maximum voltage for the Li-Po battery
must be followed.
lDO NOT over-discharge the Li-Po battery. NEVER discharge
below minimum volts.
lThe Li-Po battery must never exceed 160ºF (71ºC) for any
reason.
TRIMMING FOR LEVEL FLIGHT............................................................13
FIXING MINOR CRASH DAMAGE .........................................................14
TROUBLESHOOTING GUIDE................................................................ 15
WARRANTY INFORMATION .............................................. BACK COVER
SAFETY WARNINGS ...............................................................................2
INTRODUCTION....................................................................................... 3
TOOLS AND ACCESSORIES REQUIRED FOR FLIGHT......................... 3
PARTS IDENTIFICATION..........................................................................3
BECOMING FAMILIAR WITH YOUR P-40 WARHAWK EP RR................ 4
ASSEMBLING YOUR P-40 WARHAWK EP RR ....................................... 5
LEARNING TO FLY YOUR P-40 WARHAWK EP RR ............................... 9
YOUR FIRST FLIGHT .............................................................................12

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Thank you for purchasing the Phase 3 Models P-40 Warhawk EP RR. Before completing the nal assembly of your new P-40 Warhawk
EP RR, please carefully read through these Assembly Instructions in their entirety. Doing so will ensure your success the rst time
around. As you can see, there's not much to it!
lIdentify the Parts and Familiarise Yourself with Your New P-40 Warhawk EP RR
lCharge the Li-Po Battery
lInstall Your Receiver and Plug In the ESC and Servo Leads
l Install the Horizontal Stabiliser and the Vertical Fin
lInstall the Wing
l Connect the Control Surfaces and Adjust the Control Throws
lChoose Your Flying Field and Fly!
INTRODUCTION
TOOLS AND ACCESSORIES REQUIRED FOR FLIGHT
This section lists the tools and accessories you will need to have on-hand to nish the assembly and y your new P-40 Warhawk EP RR.
The P-40 Warhawk EP RR is receiver-ready. We have designed
the aircraft to use your own transmitter and receiver, so you
will need to purchase a 5 or more channel transmitter and
matching receiver if you don't already have one.
*To make ying and control setup easier, we strongly
suggest that your transmitter feature servo reversing, dual
rates, servo end-point adjustments (EPA) and servo centreing
adjustments (CNT). Most higher-end radio control systems,
such as the Airtronics RDS8000 or the Futaba 6EX have
these features.
# 1 Philips Head
Screwdriver
Straight Edge Ruler
5 Channel or More
Transmitter and Receiver*
PARTS IDENTIFICATION
Before beginning assembly, remove the parts from the box and use the photos below to verify that your kit contains all of the correct parts.
If your kit is missing a part or if a part is damaged, please contact your local distributor,
using the separate Customer Service Information sheet included with your kit.
Fuselage Assembly Wing Assembly Horizontal and Vertical Stabilisers
Wing and Stabiliser Mounting Screws Li-Po Battery and 12V DC ChargerServo Extensions and Foam Tape
Tail Wheel and Mounting Screws

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BECOMING FAMILIAR WITH YOUR P-40 WARHAWK EP RR
*Photo May Differ From Production Model
Aileron: The aileron is hinged to the wing and pivots up and down to make the P-40 Warhawk EP RR turn right and left.
Battery Cover: The battery cover allows quick and easy access to the Li-Po battery.
Elevator: The elevator is hinged to the horizontal stabiliser and pivots up and down to make the P-40 Warhawk EP RR climb and descend.
Fuselage: The main body of the P-40 Warhawk EP RR. All of the major airframe assemblies are attached to the fuselage.The fuselage
houses the elevator and rudder servos, the motor, the electronic speed controller (ESC), and your receiver.
Horizontal Stabiliser: The horizontal stabiliser provides vertical stability for the P-40 Warhawk EP RR during ight.
Landing Gear: The landing gear is retractable for more scale looks and improved ight characteristics. The landing gear features
prebent coiled wire for strength, and lightweight foam wheels. The landing gear supports the P-40 Warhawk EP RR while on the ground
and allows you to take off and land from hard surfaces.
Motor: The P-40 Warhawk EP RR features a Brushless motor for superior power and efciency.
Propeller: The propeller is attached to the motor. When spinning, the propeller creates thrust which pulls the P-40 Warhawk EP RR forward.
Pushrod Assembly: The pushrod assembly consists of a pushrod, clevis and control horn. Each pushrod assembly connects the servos
to the ailerons, elevator, rudder and landing gear. The clevises are adjustable to allow ne-tuned adjustments to the control surfaces.
Servo: The servo is powered by the Li-Po battery installed in the P-40 Warhawk EP RR. The servos move the control surfaces to control
the aircraft. The P-40 Warhawk EP RR features ve servos which control the ailerons, elevator, rudder and landing gear.
Tail Wheel: The tail wheel supports the back of the P-40 Warhawk EP RR and moves right and left with the rudder which allows you to
steer the P-40 Warhawk EP RR on the ground.
Vertical Fin: The vertical n provides lateral stability for the P-40 Warhawk EP RR during ight.
Wing: The wing has a special airfoil shape and provides the main source of lift for the P-40 Warhawk EP RR.
Aileron
Battery Cover
Elevator
Fuselage
Horizontal Stabiliser
Landing Gear
Motor (Inside Cowl)
Pushrod Assembly
Wing
Propeller
Vertical Fin
Rudder
Tail Wheel
LOCATING THE CENTRE OF GRAVITY AND ADJUSTING THE CONTROL THROWS
For important information about locating the centre of gravity and setting and adjusting the control throws, please refer to the Your First
Flight section on page 12.

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ASSEMBLING YOUR P-40 WARHAWK EP RR
STEP 1: CHARGING THE LI-PO BATTERY
STEP 2: INSTALLING YOUR RECEIVER
qRemove the protective backing from one side of the piece of foam tape.
qApply the piece of foam tape to the back of your receiver.
qPlug the elevator and the rudder servo leads into your receiver, then plug the
throttle (ESC) lead into your receiver, making sure that the polarity is correct
and that the servo leads are plugged into the correct channel slots.
IMPORTANT Each of the servo leads have a sticker applied to them that
shows which control that particular servo operates [('E' - Elevator / 'R' - Rudder
/ 'T' - Throttle (ESC)]. When you plug the servo leads into your receiver,
make sure that the polarity is correct and that you plug the servo leads into
the correct channel slots. Refer to your radio control system's User's Guide
for more information.
qPlug the two servo extension leads into your receiver, making sure that the
polarity is correct. Plug one sevo extension lead into the aileron channel
slot (for the ailerons) and the second servo extension lead into the retract
channel (for the retractable landing gear).
qAllow the Li-Po battery to charge. When the charging process is complete, the Li-Po battery charger LED will turn GREEN. Once
the charging process is complete, remove the Li-Po battery from the Li-Po battery charger and set it aside for now.
qPlug the white balance connector on the Li-Po battery into the right side of
the Li-Po battery charger. As a safety feature, the connector can be plugged
in only one way.
qThe LED on the Li-Po battery charger will blink RED, indicating that the
Li-Po battery is charging.
qPlug the input connector into the left side of the Li-Po battery charger, then connect the alligator clips from the Li-Po battery charger
to your 12 volt source. Make sure to connect the black alligator clip to the negative (-) terminal and the red alligator clip to the
positive (+) terminal. The LED on the Li-Po battery charger will turn GREEN indicating that the Li-Po battery charger is ready.
WARNING Before charging the Li-Po battery, please read and understand the Li-Po (Lithium Polymer) battery warnings on page 2.

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q Uncoil your receiver antenna and feed it through the antenna support tube and out the back of the fuselage. If you're using a 2.4GHz
receiver, follow the instructions in your radio control system's User's Guide regarding antenna placement.
WARNING Do not cut your antenna wire shorter or the range of your radio control system will be greatly reduced. Allow the excess
antenna wire to hang out past the back of the fuselage.
PRO TIP If you have difculty sliding your receiver antenna wire through the antenna support tube in the next procedure, rst pull
the antenna wire through your ngers several times to straighten it, then lightly wet the antenna wire with glass cleaner. The glass
cleaner will make the antenna wire slide through the support tube much easier.
STEP 3: INSTALLING THE HORIZONTAL STABILISER
qPlace the horizontal stabiliser onto the top of the fuselage, making sure
that the moulded mounting recess in the bottom of the horizontal stabiliser
ts over the moulded mounting base on the fuselage.
qInstall and gently tighten the two 18mm long mounting screws to secure the
horizontal stabiliser into place.
IMPORTANT When you tighten the two mounting screws, the sides of the
vertical n mounting slot will bow inward slightly. This is normal.
STEP 4: INSTALLING THE VERTICAL FIN AND THE TAIL WHEEL ASSEMBLY
q Slide the end of the tail wheel wire into the nylon support tube that's preinstalled
in the leading edge of the rudder.
IMPORTANT Do not glue the tail wheel wire into the nylon support tube.
q Turn the tail wheel assembly up toward you so that it's perpendicular to the
rudder hinge line, then 'hook' the cutout in the rudder over the elevator and
push the vertical n down into the mounting slot in the top of the horizontal
stabiliser.
IMPORTANT To install the vertical n and the tail wheel assembly, you must rst rotate the tail wheel assembly up toward you so
that it's perpendicular to the rudder hinge line, then push the vertical n straight down into the mounting slot.
qRemove the second piece of protective backing from the foam tape and
carefully install your receiver onto the inside of the fuselage, just behind the
opening in the back of the wing saddle.
IMPORTANT The receiver should be installed as far away from the ESC
as possible, and the receiver and/or servo wires should not interfere with
the elevator or rudder pushrods.

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qPivot the tail wheel bracket over the tail wheel mounting plate in the fuselage,
then install and tighten two 10mm long mounting screws to secure the tail
wheel bracket to the tail wheel mounting plate.
STEP 5: INSTALLING THE LI-PO BATTERY
qRemove the battery cover by carefully pulling back, then up, on the latch
at the front of the battery cover, then by pulling the battery cover forward to
slide it out of place.
WARNING The P-40 Warhawk EP RR does not have an ON/OFF switch. When you plug in the Li-Po battery, the receiver and the
servos will be powered up, and ESC will emit two audible tones, indicating that the motor is armed.
qTurn on your transmitter and double-check that the throttle control stick is
pulled all the way back to the low throttle setting.
WARNING Always make sure that you turn on your transmitter rst, before
plugging in and installing the Li-Po battery. After you're done ying, unplug
and remove the Li-Po battery rst, then turn off your transmitter. This will
prevent unexpected radio signals from interfering with the radio control
system.
qCentre the aileron, elevator, rudder and throttle trim tabs on your transmitter.
qIf your transmitter features electronic servo centreing (CNT), make sure
that it is set to 0% for the elevator, aileron, throttle, rudder and landing gear
channels.
qIf your transmitter features end point adjustment (EPA), make sure it is set to
100% in both directions for the elevator, aileron, throttle, rudder and landing
gear channels.
qInstall and gently tighten the two 14mm long mounting screws to secure the
vertical n into place.
IMPORTANT Be careful not to overtighten the two mounting screws. They
need only be tightened snugly.

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qPush the Li-Po battery, followed by the battery connector down into the
battery compartment.
qSlide the battery cover back into place, making sure that the front of the
battery cover snaps down into place.
WARNING When the Li-Po battery is plugged in, the ESC will beep two times, indicating that the motor is armed. Be careful that
you don't move the throttle control stick or the motor will turn on. Keep the throttle control stick at the low throttle setting and be sure
to keep everything clear of the propeller, especially your ngers and loose clothing.
STEP 6: CONNECTING THE ELEVATOR AND RUDDER CLEVISES
qPlug the connector on the Li-Po battery into the connector that is inside the
battery compartment. When plugged in properly, the connectors should 'click'
together. For safety, the connectors can only be plugged in one way.
IMPORTANT When you plug in the Li-Po battery, the servos will move
to their neutral positions. If the servo arms are not centred, we will adjust
them in the next step.
qWith your transmitter elevator and rudder trim tabs centred, check to ensure
that the elevator and rudder servo arms are centred. If the servo arms are
not centred, remove the servo arms from the servos, then reinstall them,
making sure that they are centred.
PRO TIP If the servo arms are not too far from being centred, and if your
transmitter features electronic servo centreing (CNT), you can use your
transmitter to electronically centre the servos.
qCarefully snap the plastic clevis on the elevator pushrod wire into the
outermost hole in the elevator control horn.
IMPORTANT We suggest installing the clevis into the outermost hole in
the control horn for your rst few ights. This will make it easier to control the
P-40 Warhawk EP RR. Once you're procient at ying the P-40 Warhawk
EP RR, you can move the clevis into the middle or inner hole to increase
the control response.
qCarefully snap the plastic clevis on the rudder pushrod wire into the outermost
hole in the rudder control horn.
IMPORTANT Like with the elevator pushrod clevis, we suggest installing
the rudder pushrod clevis into the outermost hole in the control horn for
your rst few ights.

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STEP 7: INSTALLING THE WING
qDouble-check that your transmitter landing gear (retract) switch is in the
'Gear Up' position.
qIf your transmitter features electronic servo centreing (CNT), make sure it
is set to 0% for the aileron and landing gear channels.
qIf your transmitter features end point adjustment (EPA), make sure it is set
to 100% in both directions for the aileron and landing gear channels.
qPlug the aileron servo wire from the wing into the aileron servo wire extension
lead in the fuselage, making sure that the polarity is correct.
qPlug the landing gear servo wire from the wing into the landing gear servo
wire extension lead in the fuselage, making sure that the polarity is correct.
qPush the excess servo wires into the forward section of the fuselage, then
set the wing into the wing saddle, making sure that no part of the servo
wires are pinched between the wing saddle and the wing.
qSecure the wing to the fuselage, using the three nylon screws provided.
IMPORTANT Don't overtighten the nylon screws. They need only be
tightened snugly.
LEARNING TO FLY YOUR P-40 WARHAWK EP RR
Before actually ying your P-40 Warhawk EP RR you should understand how the aircraft is controlled. Below we list the ve ight modes:
Climb: Climbing is controlled by pushing the throttle control stick on your transmitter completely forward to turn on the motor, then by
pulling back on the elevator control stick. When you push forward on the throttle control stick, the motor will turn on. When you pull back
on the elevator control stick, the elevator will move up, causing the aircraft to pitch up and climb.
Descent: Descent is also controlled by the throttle and elevator control sticks. When you pull the throttle control stick all the way back,
the motor will turn off and the aircraft will begin to descend. To make the aircraft descend more, you can also push forward on the elevator
control stick. This will make the elevator move down, causing the aircraft to pitch down and descend more quickly.
Right Turn: A right turn is made by moving the aileron control stick. This is the same stick as the elevator control stick, only it moves
right and left. When you move the aileron control stick to the right, the right-side aileron moves up and the left-side aileron moves down,
causing the aircraft to bank and turn right.
Left Turn: A left turn is made by moving the aileron control stick. When you move the aileron control stick to the left, the left-side aileron
moves up and the right-side aileron moves down, causing the aircraft to bank and turn left.
Yaw Right and Left: The aircraft can be made to yaw right or left (i.e., move the nose of the aircraft right or left with minimal bank) by
using the rudder control stick. This is the same stick as the throttle control stick, only it moves right and left. When you move the rudder control
stick to the right, the rudder moves right, causing the nose of the aircraft to move to the right. When you move the rudder control stick to
the left, the rudder moves left, causing the nose of the aircraft to move to the left. The rudder is used to steer the aircraft on the ground
and for making coordinated turns, and during aerobatics.
STEP 1: BASIC OPERATION

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STEP 2: GROUND OPERATIONS TESTING AND CONTROL SETUP
qDouble-check that your transmitter aileron, elevator, rudder and throttle trims tabs are centred. If your transmitter features
electronic servo centring (CNT), make sure it is set to 0% for the elevator, aileron, throttle, rudder and landing gear channels. If your
transmitter features end point adjustment (EPA), make sure it is set to 100% for the elevator, aileron, throttle, rudder and landing
gear channels.
qLooking from the back of the P-40 Warhawk EP RR, push the aileron control
stick completely to the left. The left-side aileron should move up and the
right-side aileron should move down.
qLooking from the back of the P-40 Warhawk EP RR, push the aileron control
stick completely to the right. The right-side aileron should move up and the
left-side aileron should move down.
IMPORTANT If the ailerons do not move in the correct direction, reverse
the servo direction using the servo reversing function of your transmitter.
qLooking from the back of the P-40 Warhawk EP RR, pull the elevator control
stick completely back. The elevator should move up.
qLooking from the back of the P-40 Warhawk EP RR, push the elevator control
stick completely forward. The elevator should move down.
IMPORTANT If the elevator does not move in the correct direction, reverse
the servo direction using the servo reversing function of your transmitter.
qLooking from the back of the P-40 Warhawk EP RR, push the rudder control
stick completely to the left. The rudder should move left.
qLooking from the back of the P-40 Warhawk EP RR, push the rudder control
stick completely to the right. The rudder should move right.
IMPORTANT If the rudder does not move in the correct direction, reverse
the servo direction using the servo reversing function of your transmitter.
qIf the ailerons, elevator and rudder are not centred, unsnap the clevises
and thread them in or out until you're satised with the alignment, then
snap the clevises back into the control horns, making sure to snap them
into the same holes that you removed them from.
Turn Clockwise to
Shorten Pushrod
Turn Counter-Clockwise to
Lengthen Pushrod
IMPORTANT It's important that when your transmitter trim tabs are centred the control surfaces are centred, too. The tips of the
ailerons (at the trailing edge) should be even with the trailing edge of the wing, and the elevator and rudder should be centred with
the horizontal stabiliser and the vertical n when viewed from the side (elevator) and above (rudder).
qFlip the landing gear (retract) switch on your transmitter to lower the landing
gear. The landing gear should come down and both landing gear legs should
lock into place.
qFlip the landing gear (retract) switch on your transmitter to raise the landing
gear. The landing gear should retract and be held rmly inside the wing.
IMPORTANT If your transmitter features end point adjustments (EPA),
you can adjust the end point travel of the retract servo in each direction to
remove any buzz from the servo at both the up and the down positions.
Move Stick Left... Left Aileron Moves Up
and Right Aileron Moves Down
Move Stick Right...
Right Aileron Moves Up
and Left Aileron Moves Down
Move Stick Back...
Elevator Moves Up
Move Stick Forward...
Elevator Moves Down
Move Stick Right...
Rudder Moves Right
Move Stick Left...
Rudder Moves Left
Move Landing Gear Switch...
Landing Gear Moves Up and Down

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qThe motor is armed automatically when the Li-Po battery is plugged in while the transmitter is turned on and the throttle control stick
is pulled all the way back to the low throttle setting.
As a safety precaution, the motor will not turn on if
the Li-Po battery is plugged in with the throttle control
stick above low throttle setting.
qWhile holding the aircraft upright in the air with the
propeller pointing away from you, push the throttle control stick completely forward. The propeller will spin at a high rate of speed.
qContinue testing the controls for a minute or two to become familiar with how the ailerons, elevator, rudder and throttle react to control
stick inputs. You'll notice that even the throttle adjusts speed smoothly as the throttle control stick is moved up and down. You should
also cycle the landing gear up and down several times to ensure that it's working properly, without any binding.
WARNING While you are testing the motor, keep everything clear of the propeller, especially your ngers and loose clothing.
q Once you're done testing the controls, uplug the Li-Po battery, turn off your transmitter, then remove the Li-Po battery from the
battery compartment and allow it to cool before recharging it for your rst ight.
STEP 3: TESTING THE MOTOR
IMPORTANT If the motor does not arm, cycle the throttle control stick from low to high, then back to low. When pulling the throttle
control stick back to low, the ESC should emit two audible tones indicating that the motor is armed.
IMPORTANT If the motor does not arm, or if the motor turns on when the
throttle control stick is pulled back fully, reverse the servo direction using
the servo reversing function of your transmitter. In most cases, for the ESC
and motor to operate correctly, the throttle channel direction should be set
to Normal (NORM).
STEP 4: CHOOSING A DAY TO FLY
q Until you become a procient yer you should always plan on ying your P-40 Warhawk EP RR when there's no wind. We strongly
suggest waiting for a calm day. If it's windy and you attempt to y, it will only make learning to y the P-40 Warhawk EP RR more
difcult. Once you are procient at ying the P-40 Warhawk EP RR, you can y the P-40 Warhawk EP RR in light wind - no
more than 10 ~ 15 miles per hour. Flying in stronger wind is not recommended.
STEP 5: CHOOSING YOUR FLYING FIELD
q The ying eld you choose should be a large, open eld with grass. There should not be any vehicles, buildings, power lines, trees,
large rocks or anything else that your P-40 Warhawk EP RR can crash into.
STEP 6: RANGE CHECKING THE RADIO CONTROL SYSTEM
After getting out to your ying eld, but before you y for the rst time, you should range test your radio control system. This will ensure
that the transmitter is 'talking' correctly to the P-40 Warhawk EP RR. You should do this before every rst ight of the day and after you
have a hard landing, crash, or after a repair.
qTurn on your transmitter, move the throttle control stick fully back, then plug in the Li-Po battery and install it into the battery compartment.
Set the P-40 Warhawk EP RR on the ground. With your transmitter's antenna completely collapsed, move the aileron/elevator control
stick on the transmitter several times to check the controls. They should operate smoothly.
qWalk approximately 50 feet (15 metres) from the P-40 Warhawk EP RR and move the aileron/elevator control stick on your transmitter
once more. Check to make sure that the controls are operating smoothly at this distance.
IMPORTANT If your radio control system does not operate properly, please refer to your radio control system's User's Guide before
continuing further. Never attempt to y your P-40 Warhawk EP RR if your radio control system is not functioning properly.

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YOUR FIRST FLIGHT
After all this, we bet you're ready to actually go ying! If you've skipped anything prior to this section, we suggest going back through
these Assembly Instructions. Doing so will help ensure your success.
WARNING If at any time during your ight, the aircraft gets stuck up in a tree, in power lines or on a roof top, DO NOT attempt to
retrieve the aircraft yourself. The aircraft is not worth the risk. We strongly suggest contacting your local re department for assistance.
Attempting to retrieve the aircraft yourself in any of these cases could potentially result in extreme harm or even death.
l With the Li-Po battery fully charged, you can expect anywhere from 8 ~ 10 minutes of ight time, so plan your landing accordingly.
l Make sure that your ying eld has no obstructions you can y into.
l The ying eld should be large enough that you can land anywhere if you get into trouble. Until you are procient at ying the P-40
Warhawk EP RR, you don't want to have to worry about landing in a small, localized area.
l There should be no wind during your rst few ights; also try to orientate yourself so you're not looking directly into the sun
while ying.
l Before each ight, do a quick motor test to make sure that the motor is producing full power and cycle the landing gear up and down
once to ensure that the landing gear does not bind or stick.
lDouble-check that the ailerons, elevator and rudder are moving in the correct direction.
lDouble-check that the ailerons, elevator and rudder are centred and that the trim tabs on your transmitter are centred, too.
l Make sure to check if any other pilots are using the same radio frequency as you. Do not y your aircraft if another model is on the
same frequency as you.
l Double-check that your receiver antenna wire is fully extended and not coiled up inside the fuselage. If you're using a 2.4GHz radio
control system, double-check that your receiver antenna wires are installed per your radio control system's User's Guide.
lAlways be conscious of the spinning propeller. Be careful not to allow loose clothing to be drawn into the propeller.
lPeriodically double-check that the propeller is tight. If the propeller is damaged, replace it immediately.
l After each landing, double-check that the landing gear legs haven't bent back. If they have, gently bend them forward and cycle
the landing gear up and down once to ensure that the landing gear does not bind or stick.
lDuring the takeoff roll, the aircraft will have a tendency to pull to the left due to the torque of the spinning propeller. This is normal and
will need to be corrected for by holding a small amount of right rudder during the takeoff roll to keep the aircraft tracking straight.
l Don't forget to extend the landing gear before landing!
SOME THINGS TO REMEMBER
The Centre of Gravity (Balance Point) is located 57mm (2-1/4") back from
the leading edge of the wing, measured at the fuselage side*.
LOCATING THE CENTRE OF GRAVITY AND ADJUSTING THE CONTROL THROWS
Ailerons: 13mm (1/2") Up and Down
Elevator: 18mm (3/4") Up and Down
Rudder: 13mm (1/2") Right and Left
Control Throws
*Balance the P-40 Warhawk EP RR
Upside Down With the Landing
Gear Retracted.
The P-40 Warhawk EP RR is designed to balance properly directly out of the box when using the included Li-Po battery. You MUST
double-check the balance of the aircraft, though, before ying it for the rst time or after any repairs are made.
If you have set up your radio end point adjustments to 100% as we suggested, and if you have snapped the clevises into the outermost
holes in the control horns as we suggested, the control throws should measure as stated above. You should double-check these
control throws and adjust the controls as necessary to achieve the correct control throws. This can be done by using your transmitter
to adjust the servo end points (EPA) or by moving the clevises toward the base of the control horns (more control throw) or away from
the base of the control horns (less control throw).
53mm to 67mm
(2-1/8" to 2-5/8")

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If you're ying your P-40 Warhawk EP RR and it seems to always want to turn right or left or pitch up or down, use the trim tabs on your
transmitter to correct these tendencies. We suggest ying the P-40 Warhawk EP RR straight ahead and level, then letting go of the
control sticks for a few seconds. Watch what the P-40 Warhawk EP RR does. It may pitch up or down, or it may turn right or left, or it
may do a combination of these. Do this several times to double-check your ndings.
TRIMMING FOR LEVEL FLIGHT
TAKEOFF FROM THE GROUND
qSet the P-40 Warhawk EP RR on the ground and slowly advance the throttle to taxi. Practice taxiing around slowly to get a feel for
how the rudder works on the ground.
qMaking sure that the P-40 Warhawk EP RR is pointing directly into the wind, slowly push the throttle control stick forward until the motor
is running at full power. The P-40 Warhawk EP RR will quickly begin to accelerate. During the takeoff roll, hold right rudder (as needed)
to keep the aircraft tracking straight. Once the P-40 Warhawk EP RR is ready to lift off, pull back gently on the elevator control stick.
IMPORTANT The P-40 Warhawk EP RR can take off from the ground, provided the surface is smooth and hard, such as asphalt,
concrete or hard-packed dirt.
IMPORTANT During the takeoff roll, the aircraft will have a tendency to pull to the left due to the torque of the spinning propeller.
This is normal and will need to be corrected for by holding a small amount of right rudder during the takeoff roll to keep the aircraft
tracking straight (as described above).
HAND LAUNCHING
qWhile holding the transmitter in your other hand, push the throttle control stick forward to check that the motor powers up. Now, pull
the throttle control stick completely back.
qIf there is any wind, turn to face it. While holding the throttle control stick completely forward (the propeller will spin very fast), hold
the P-40 Warhawk EP RR just above shoulder level and rmly toss the P-40 Warhawk EP RR straight ahead and level. Allow the
aircraft to y straight and continue to hold the throttle control stick completely forward so that the P-40 Warhawk EP RR climbs.
PRO TIP If the P-40 Warhawk EP RR begins losing altitude after launching, pull back gently (only a small amount) on the elevator
control stick. This will cause the P-40 Warhawk EP RR to gently pitch up and climb. The P-40 Warhawk EP RR may start to bank
right or left after launching, too. If this happens, gently move the aileron control stick right or left to level the wing.
qDouble-check that the throttle control stick is in the pulled back fully, then
grasp the P-40 Warhawk EP RR fuselage directly behind the wing.
WARNING While hand-launching the P-40 Warhawk EP RR, always be
conscious of the spinning propeller.
qRetract the landing gear before hand-launching to reduce the overall drag
on the aircraft.
If the P-40 Warhawk EP RR pitches up:
Move the elevator trim tab forward a couple
of clicks.
If the P-40 Warhawk EP RR turns right:
Move the aileron trim tab left a couple
of clicks.
If the P-40 Warhawk EP RR pitches down:
Move the elevator trim tab back a couple
of clicks.

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While you're ying your P-40 Warhawk EP RR, there comes a time when you might crash. If the crash isn't too bad, most damage can
be repaired quickly and easily. If the damage is beyond repair, spare parts are available for purchase. If a foam part is going to break
during a crash it will usually break cleanly. To repair a clean break, follow the procedures below:
qGlue the broken parts together, using a thin layer of 5 minute epoxy or white glue, following the directions on the glue bottle. Hold
the parts together and in alignment until the glue fully cures.
qApply a strip of clear tape over the seams to strengthen the joint even more.
FIXING MINOR CRASH DAMAGE
WARNING It is very important that you use no solvents or Cyanoacrylate (C/A) glue, which can damage foam. If any of these chemicals
comes in contact with the foam parts, the parts will be destroyed. Use only epoxy or white glue to repair damaged foam parts.
If the P-40 Warhawk EP RR turns left:
Move the aileron trim tab right a couple
of clicks.
If the P-40 Warhawk EP RR yaws left:
Move the rudder trim tab right a couple
of clicks.
If the P-40 Warhawk EP RR yaws right:
Move the rudder trim tab left a couple
of clicks.
You can make these changes while you are ying, but we suggest having a friend move them for you so you don't lose sight
of the P-40 Warhawk EP RR. We recommend moving the trim tabs only a couple of clicks at a time so you don't over-correct
for the trim problem.
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TROUBLESHOOTING GUIDE
This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with your P-40
Warhawk EP RR. Most problems encountered can be solved by carefully following the problem-cause-solution sections below.
If you cannot solve the problem using this troubleshooting guide, please contact your local distributor,
using the separate Customer Service Information sheet included with your kit.
PROBLEM CAUSE SOLUTION
1) Motor does not turn on A) Li-Po battery depleted A) Recharge Li-Po battery (P5)
B) Transmitter batteries depleted B) Replace or recharge batteries
C) Transmitter not turned on C) Turn on transmitter
D) Li-Po battery not plugged in D) Plug in Li-Po battery (P7)
E) Motor not armed E) Arm motor (P7/8)
F) A crash has damaged an internal component F) Contact Local Distributor (Back Cover)
2) P-40 Warhawk EP RR is difcult A) You are ying in too much wind A) Fly when there is no wind
to control B) Li-Po battery depleted B) Recharge Li-Po battery (P5)
C) Transmitter batteries depleted C) Replace or recharge batteries
D) Transmitter antenna not extended completely D) Extend transmitter antenna completely
E) You are over-controlling E) Use small, gentle control inputs
3) P-40 Warhawk EP RR constantly A) You are ying in too much wind A) Fly when there is no wind
climbs or descends, or turns B) The aircraft is out of trim adjustment B) Adjust the transmitter trim tabs (P13)
right or left without control input
4) P-40 Warhawk EP RR will not A) Li-Po battery is depleted A) Fully charge the Li-Po battery (P5)
climb B) Propeller is damaged B) Check and replace propeller
C) Motor is damaged C) Check and replace motor
D) The aircraft is out of trim adjustment D) Centre the elevator control surface (P10)
5) Li-Po battery is slightly warm A) This is normal A) The Li-Po battery may be slightly warm when fully
after charging charged. It should not be hot to the touch
6) Motor vibrates excessively A) Propeller is damaged A) Check and replace propeller
B) Motor is damaged B) Check and replace motor
7) Control surfaces move the A) Servo direction is reversed A) Adjust servo reversing function (P10)
wrong direction
8) Landing gear will not lock in A) Not enough servo control throw A) Move retract pushrods one hole further out in
the down position servo arm or increase servo end point adjustment
via your transmitter
9) Landing gear does not retract A) Wheel is hitting wheel opening in wing A) Gently bend landing gear strut straight
into wing
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WARRANTY INFORMATION
Phase 3 Models guarantees this kit to be free from defects in both material and workmanship at the date of purchase. This does not
cover any component parts damaged by use, misuse or modication. In no case shall Phase 3 Model's liability exceed the original
cost of the purchased kit.
In that Phase 3 Models has no control over the nal assembly or material used for nal assembly, no liability shall be assumed for any
damage resulting from the use by the user of the nal user-assembled product. By the act of using the nal user-assembled product,
the user accepts all resulting liability.
The Phase3 Models P-40 Warhawk EP RR is warranted against manufacturer defects in materials and workmanship for a period of 90
days from the date of purchase. Warranty service will be provided within 90 days of the date of purchase only if you are able to provide
the original or a copy of the original dated sales receipt.
Before returning your aircraft for warranty consideration, the status of the unit must be within the guarantee as stated above. Do not
return your aircraft to the place of purchase. They are not authorized or equipped to perform warranty work on Phase 3 Models products.
When requesting warranty service, please observe the following:
lCrash damage will not be covered under warranty. Do not request warranty service for a crash-damaged product.
lRemove your receiver from the aircraft prior to returning it to us. This warranty does not include your transmitter and receiver and does
not cover damage caused by your transmitter or receiver, or damage resulting from a problem with your transmitter or receiver.
lInclude a note detailing the problem or service you are requesting. Service cannot be provided without this information. Include your
daytime phone number, shipping address and/or Email address in the event we need more details pertaining to the service requested.
lYou may request an estimate of services at the time you return your aircraft for service. An omission of this request implies
permission for Phase 3 Models to service your aircraft at our discretion.
lInclude a method of payment for any service charges.
lSend the unit to us by United Parcel Service, Federal Express or by Insured Mail.
For more information regarding warranty service, please contact your local distributor,
using the separate Customer Service Information sheet included with your kit.
Phase 3 Models
P.O. Box No. 402
Texaco Road PO
New Territories, Hong Kong
www.phase3models.com