Black Horse Model BH36-A, BH36-B, P-51 MUSTANG, BH33-B Instruction Manual Book

Page 1
Instruction Manual Book
Item code: BH36-A.
P47-THUNDERBOLT
ALL BALSA - PLY WOOD CONSTRUCTION.
COVERED WITH ORACOVER.
95% ALMOST READY TO FLY
SPECIFICATION
- Wingspan: 1,620mm (64in).
- Length: 1,340mm (53in).
- Weight: 4.4kg (9.68lbs).
- Wing area: 46.1dm2.
- Wing loading: 95.4g/dm2.
- Wing type: Naca Airfoil.
- Gear type: Air retract gear with oleo struts (included).
Parts listing required (not included):
- Radio: 06 channels.
- Servo: 08 servos,
servo mount: 42mm x 21mm.
- Engine: 61-75 2 strokes; 15cc Gas.
- Motor: Brushless outrunner 1200-2200W, 650KV.
- Propeller: Suit with your engine.
Recommended Motor and Battery set up (not included):
- Motor: RIMFIRE.60.
- Lipo cell: 6 cells 4,000-5,000mAh.
- ESC: 80A.
- Receiver battery: 6V/ 1200-2000mAh NiMH.
Made in Vietnam.
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P47-THUNDERBOLT
This instruction manual is designed to help you build a great ying aeroplane. Please read this manual thoroughly
before starting assembly of your
. Item code: BH36-A. Instruction Manual
P47-THUNDERBOLT
. Use the parts listing below to identify all parts.
WARNING
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU ASSUME ALL RISK & RESPONSIBILITY.
If you are inexperienced with basic R/C ight we strongly recommend you contact your R/C supplier and join your
local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training procedures designed to help the new
pilot on his way to successful R/C ight. They will also be able to advise on any insurance and safety regulations
that may apply.
TOOLS & SUPPLIES NEEDED
Thick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modelling knife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
Thread-lock.
Paper towels.
PARTS LISTING
Some more parts.
HARDWARE PACK
COWLING.
Landing gear.....
SUGGESTION
To avo id scratching your new airp lan e, do not unwr a p the piece s unti l they are needed for assembly. Cover your workbench with an old towel or brown paper, both to protect the aircraft and to protect the table. Keep a couple of jars or bowls handy to hold the small parts after you open the bag.
NOTE
FUSELAGE ASSEMBLY
(1) Fuselage.
WING ASSEMBLY
(1) Right wing half with pre-installed aileron.
(1) Left wing half with pre-installed aileron.
TAIL SECTION ASSEMBLY
(1) Vertical stabilizer with pre-installed rudder.
(1) Horizontal stabilizer with pre-installed
elevator halves.
2
Please trial fit all the parts. Make sure you have
the correct parts and that they t and are aligned
pr operly before glu ing! T his wil l assure proper ass embly.
made from natural materials, every plane is unique an d minor adju stments may hav e to be mad e. Howeve r, you sho uld fi nd the fit superio r and assembly simple.
The painted and plastic parts used in this kit are fuel proof. However, they are not tolerant of many harsh chemicals including the following: paint thinner, C/A glue accelerator, C/A glue debonder and acetone. Do not let these chemicals come in contact with the colors on the covering and the plastic parts.
P47-THUND E R B O LT
. A RF is hand
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
Caution: This model is not a toy! If you are a beginner to this type of powered model,
please ask an experienced model yer for help and
support. If you attempt to operate the model without knowing what you are doing you could easily injure yourself or somebody else. Please keep your safety and well-being in mind at all times.
Important: Before you start construction
Even if you have built a large number of RC models please read right through these instructions and check all the kit components against the parts list. We have taken great trouble to keep construction as simple as possible, without making any compromises in the area of safety.
Note regarding the lm covering
Minor creases or bubbles may develop in the lm covering due to major uctuations in weather conditions
(temperature, humidity etc.); in rare cases you may
even nd a slight warp in a component. These minor faults are in the nature of lm-covered built-up wooden
structures, and can easily be corrected using a heat gun, as commonly used for modelling. Creases: Blow warm air over the area and rub down with a soft cloth. Wing wrap: Hold the panel twisted gently in the opposite direction to the wrap,and apply warm air to remove the creases from the covering.
Caution! do not heat the lm more than is absolutely necessary. If the air or the iron is too hot, the lm may
melt and holes may be formed.
This model is highly pre-fabricated and can be built in a very short time. However, the work which you have to carry out is important and must be done carefully. The
model will only be strong and y well if you complete
your tasks competently - so please work slowly and accurately.
When self-tapping screws have to be screwed into wood, apply a little white glue to prevent them shaking loose: just squirt white glue into the hole
and t the screw.
SAFETY PRECAUTION
+ This is not a toy.
+ Be sure that no other yers are using your radio
frequency. + Do not smoke near fuel. + Store fuel in a cool, dry place, away from children and pets. + Wear safety glasses. +The glow plug clip must be securely attached to the glow plug.
+ Do not ip the propeller with your ngers.
+ Keep loose clothing and wires away from the propeller. + Do not start the engine if people are near. Do not stand in line with the side of the propeller. + Make engine adjustments from behind the propeller only. Do not reach around the spinning propeller.
REPLACEMENT LARGE PARTS
A: Fuselage. B: Wing panel (B1, B2). C: Horizontal stabilizer. D: Rudder. E: Aluminium tube wing dihedral brace. F: Cowling. G: Cockpit fuselage. L: Decal sheet.
B1
D
C
E
B2
A
G
F
G3
G4
G1
G2
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P47-THUNDERBOLT
3x15mm
. Item code: BH36-A. Instruction Manual
REPLACEMENT SMALL PARTS
2
1
5x35mm
3
1. Door mounting wheel.
2. Retract main gear.
3. Wheels.
4. Tail gear set.
5. Plastic - engine mount.
6. Wood - motor mount.
7. Spinner.
8. Fuel Tank.
9. Valve control.
10. 3 way connector.
11. Valve one way.
12. Air line sets.
13. Air tank.
3x6mm
3x4mm
8
2
4x30mm
1
5
3
4
3x12mm
7
2x10mm
4x30mm
9
12
4x70mm
3x12mm
11
13
6
10
I. AILERON
See pictures below:
Aileron
Flap
Bottom side.
1. INSTALLING THE AILERONS
Test t the ailerons to the wing with the hinges. If the
hinges don’t remain centered, stick a pin through the middle of the hinge to hold it in position.
4
Temporary pin to keep hinge centered.
Assemble then apply drops of thin C/A to center of hinge,on both sides.
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
2. INSTALLING THE AILERON SERVOS
1) Insta ll the rub ber grom mets an d brass eyelets on to the aileron servos.
2 ) U s i n g a m o d e l i ng k n i f e , r e m o ve t h e covering from over the pre-cut servo arm exit hole on the aileron servo tray / hatch. This hole will allow the servo arm to pass through when installing the aileron pushrods.
Remove the covering
Servo tray
Electric wire
4) Place the servo into the servo tray. Center the servo within the tray and drill 1.5mm pilot holes through the block of wood for each of the four mount­ing screws provided with the servo.
Drill a hole
1.5mm
Drill a hole
1.5mm
Secure
Electric wire
Secure
2x10mm
5) Repeat the procedure to install the aileron servos in the opposite wing half.
3. INSTALLING THE AILERON CONTROL HORN
1) Remove the covering from the slot on the bot- tom of the aileron.
2) Insert the control horn into the slot and secure it by A+B Epoxy glue.
3 ) Using the thre ad as a guide and using masking tape, tape the servo lead to the end of the thread: carefully pull the thread out. When you have pulled the servo lead out, remove the masking tape and the servo lead from the thread.
Aileron
control horn
2. Push in
1. A+B Epoxy glue
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
3) Repeat the procedure to install the control horn on the opposite aileron.
4. INSTALLING THE AILERON LINKAGES
Installing the aileron linkages as pictures below.
M2 lock nut
Snap keeper.
100mm
Using pliers, carefully make a 90 degree bend down at the mark made. Cut off the excess wire, leaving about 6mm beyond the blend.
Silicone Tube
Bend and cut.
Flap install as same as the way of aileron. Repeat
step #1 - #4 on the part I (page 4,5) to install the ap.
III. INSTALLING AIR RETRACTABLE
LANDING GEAR
PARTS REQUIRED
3x15mm
Insert the 90 degree bend down through the hole in the control horn. Install one nylon snap keeper over the wire to secure it to the control horn. Install the control horn retaining screw and remove the masking tape from the aileron.
Flaslink
Pushrod wire
Repeat the procedure to install the second aileron linkages in the opposite wing half.
Control horn
5x35mm
3x6mm
Install the tube to the air retract.
Place the retract to the wing and pull out the air tube through the wing section.
3x4mm
Push in
After both linkages are completed. connect both of the aileron servo loads using a Y-harness you have purchased.
II. INSTALLING THE FLAP
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
Secure the air retract to the wing.
3 x 15mm
Secure
Install and secure the wheel.
Collar
5x35mm
Secure
Drill a hole
3mm diameter
3x6mm
Bottom side
Secure
Top side
Repeat the procedure to install the opposite gear.
IV. INSTALLING THE ENGINE MOUNT
See pictures below:
Secure
3x4mm
There are two options:
1. Electric motor
2. Engine mount.
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P47-THUNDERBOLT
OPTION 1: ELECTRIC MOTOR OPTION 2: ENGINE MOUNT
4x70mm
4x20mm
. Item code: BH36-A. Instruction Manual
4x30mm
Locate the long piece of wire used for the throttle pushrod. One end of the wire has been pre-bend in to a “Z” bend at the factory. This “Z” bend should be inserted into the throttle arm of the engine when the engine is
tted onto the engine mount. Fit the engine to the engine
mount using the screws provided.
125mm
V. FUEL TANK,
SERVOS INSTALLATION
1. INSTALLING THE STOPPER ASSEMBLY
1) The stopper has been pre-assembled at the factory.
2) Using a modeling knife, cut one length of silicon fuel line (the length of silicon fuel line is calculated by how the weighted clunk should rest about 8mm away
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
from the rear of the tank and move freely inside the tank). Connect one end of the line to the weighted clunk and the other end to the nylon pick up tube in the stopper.
3) Carefully bend the second nylon tube up at a 45 degree angle (using a cigarette lighter). This tube will
be the vent tube to the mufer.
4) Carefully bend the third nylon tube down at a 45 degree angle (using a cigarette lighter). This tube will be vent tube to the fueling valve.
When the stopper assembly is installed in the tank, the top of the vent tube should rest just below the top sur­face of the tank. It should not touch the top of the tank.
lines have not become kinked inside the fuel tank
compartment. Air should ow through easily.
9) To secure the fuel tank in place, apply a bead of silicon sealer to the forward area of the tank, where it exits the fuselage behind the engine mounting box and to the rear of the tank at the forward bulkhead.
Do not secure the tank into place permanently until after balancing the airplane. You may need to remove the tank to mount the battery in the fuel tank compartment.
Tie wrap
Fuel tank
Be sure to equip air vent pipe.
To carburetor fuel inlet
Tubing for re-fuelling
Atter conrming the direction
(see front view of fuel tank). Insert and tighten the screw.
Not included.
Tygon tubing (Gas). And silicone tubing (Methanol).
5mm
5) Test t the stopper assembly into the tank. It may be necessary to remove some of the ashing around the tank opening using a modeling knife. If ashing is
present, make sure none of it falls into the tank.
6) When satised with the alignment of the stopper assembly tighten the 3mm x 20mm machine screw until the rubber stopper expands and seals the tank opening. Do not over tighten the assembly as this could cause the tank to split.
2.INSTALLING THE FUSELAGE SERVOS
1) Install the rubber grommets and brass collets
into the elevator, rudder and throttle servos. Test t
the servos into the servo tray. Trim the tray if neces-
sary to t your servos.
2) Mount the servo to the tray using the mounting screws provided with your radio system.
Rudder servo
Valve control servo
Throttle servo
Elevator servo
7) Using a modeling knife, cut 3 lengths of fuel line 150mm long. Connect 2 lines to the 2 vent tubes and 1 line to the fuel pickup tube in the stopper.
8) Feed three lines through the fuel tank compart-
ment and through the pre-drilled hole in the rewall. Pull
the lines out from behind the engine, while guiding the fuel tank into place. Push the fuel tank as far forward as possible, the front of the tank should just about touch
the back of the rewall.
Blow through one of the lines to ensure the fuel
3. INSTALLING THE THROTTLE PUSHROD
Install one adjustable metal connector through the third hole out from the center of one servo arm, enlarge the hole in the servo arm using a 2mm drill bit to accommo­date the servo connector. Remove the excess material from the arm.
After installing the adjustable metal connector apply a small drop of thin C/A to the bottom nut. This will prevent the connector from loosening during ight.
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
Pushrod wire
Throttle pushrod
Secure
Pushrod wire
Cut
of the cowl opening. Hold the cowl rmly in place using
pieces of masking tape.
3) Slide the cowl back over the engine and secure it in place using four wood screws. See picture below.
4) Install the mufer and mufer extension onto the engine and make the cutout in the cowl for mufer
clearance. Connect the fuel and pressure lines to the
carburetor, mufer and fuel ller valve.
Drill a hole
2.5mm
Drill four 2.5mm pilot holes through both the cowl and
the side edges of the rewall. Using a 3mm drill bit,
enlarge the four holes in the cowling.
Throttle servo
Connector
Servo arm
VI. COWLING
Cowl area cutout for engine head.
Cowl area cutout
for mufer
1) Slide the berglass cowl over the engine and line up the back edge of the cowl with the marks you made on the fuselage.
Secure
3x12mm
VII. INSTALLING HORIZONTAL
STABILIZER
1) Elevator install as same as the way of aileron. Please see pictures below.
2) While keeping the back edge of the cowl ush with the marks, align the front of the cowl with the crankshaft of the engine. The front of the cowl should be positioned so the crankshaft is in nearly the middle
10
2) Using a modeling knife, carefully remove the lm covering from the tail slots at the rear of the fuselage. Make sure that you do not remove any wood from the slots as this will affect the alignment of the tail.
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P47-THUNDERBOLT
Trim the covering from the tail slots.
3) Draw a center line onto the horizontal stabilizer. Then put the horizontal into the fuselage.
. Item code: BH36-A. Instruction Manual
5) With the horizontal stabilizer correctly aligned, mark the shape of the fuselage on the top and the bottom of the tail plane using a water soluble / non permanent felt-tip pen.
Mark line
Top side
Center line
A A
Push in
B B
6) Remove the stabilizer. Using a modeling knife and ruler CAREFULLY cut 1mm inside the marked lines. Remove the covering from the top and the bottom of the tail plane.
Make sure you only cut with enough pressure to only
cut through the lm and not the wood. Cutting into
the balsa structure may weaken it. This could lead to
possible failure during ight.
Top side and bottom side.
Remove
the covering.
1. ELEVATOR CONTROL HORN INSTALLATION
4) Check the t of the horizontal stabilizer in its slot. Make sure the horizontal stabilizer is square and centered to the fuselage by taking measurements, but don’t glue anything yet.
Check to mark sure the wing and stabilizer are paralell. If they are not, lightly sand the opening in the fuselage for the stabilizer until the stabilizer is paralell to the wing, but don’t glue anything yet.
A A
A = A
Elevator control horn install as same as the way of aileron control horn. Please see pictures below.
control horn
1. A+B Epoxy glue
Bottom side.
2. Push in
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
2. ELEVATOR PUSHROD INSTALLATION
Drill a hole
1.5 mm
Elevator control horn
When you are sure that everything is aligned correctly, mix up a generous amount of 30 minute epoxy. Apply a thin layer to the top and bottom of the stabilizer mounting area and to the stabilizer mounting platform sides in the fuselage. Slide the stabilizer in place and re-align. Double check all of your measure­ments one more time before the epoxy cures. Remove any excess epoxy using a paper towel and rubbing alcohol and hold the stabilizer in place with T-pins or masking tape.
Bottom side.
Elevator pushrod
Silicone Tube
M2 Lock nut
M2
1) Using pliers, carefully make a 90 degree bend down at the mark made. Cut off the excess wire, leaving about 6mm beyond the blend.
2) Insert the 90 degree bend down through the hole in the servo arm. Install one nylon snap keeper over the wire to secure it to the arm. Install the servo arm retaining screw.
A/B Epoxy glue
After the epoxy has fully cured, remove the masking tape or T-pins used to hold the stabilizer in place and
carefully inspect the glue joints. Use more epoxy to ll in any gaps that may exits that were not lled previ-
ously and clean up the excess using a paper towel and rubbing alcohol.
C/A glue.
servo arm
Flaslink
Pushrod wire
Bend
Cut.
Elevator servo
Snap keeper
Elevator pushrod
Secure.
Secure.
Top side
12
VIII. THE TAIL WHEEL BRACKET,
RUDDER INSTALLATION
Rudder install as same as the way of aileron.
Page 13
P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
3 x 12mm
Push in
Rudder pushrod
1. RUDDER CONTROL HORN INSTALLATION
Rudder control horn install as same as method of elevator control horn.
1. A+B Epoxy glue
2. Push in
Control horn
Rudder pushrod
2. Secure the tail wheel bracket in place using three 3mm x 12mm wood screws. Be careful not to overtighten the screws.
Secure
2. MOUNTING THE TAIL WHEEL BRACKET
1) Set the tail wheel assembly in place on the ply- wood plate. The pivot point of the tail wheel wire should be even with the rudder hinge line and the tail wheel bracket should be centered on the plywood plate.
3. RUDDER PUSHROD INSTALLATION
Rudder pushrod install as same as the way of elevator pushrod. Please see pictures below.
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
Please see pictures below.
M2 Lock nut
M2
Servo arm
Rudder pushrod
Rudder servo
Snap keeper
Flaslink
Pushrod wire
Rudder control horn
Rudder pushrod
Valve control
Connector
Air line sets
Air supply
3 way conector
Valve one way
Air tank
Left main gear wing
Secure
Rudder pushrod
Right main gear wing
Valve control
Valve control servo
Connector
Servo arm
C/A glue.
IX. INSTALLING VALVE CONTROL
Please see pictures below.
14
Air tank
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
Item code: BH36-A.
15
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P47-THUNDERBOLT
. Item code: BH36-A. Instruction Manual
X. INSTALLING THE SWITCH,
RECEIVER AND BATTERY
1) Cut out the switch hole using a modeling knife. Use a 2mm drill bit and drill out the two mounting holes through the fuselage side.
2) Secure the switch in place using the two machine screws provided with the radio system.
3) Plug the servo leads and the switch lead into the receiver. You may want to plug an aileron extension into the receiver to make plugging in the aileron servo lead easier when you are installing the wing. Plug the battery pack lead into the switch.
4) Wrap the receiver and battery pack in the protec- tive foam to protect them from vibration. Use a rubber band or masking tape to hold the foam in place.
5) Position the battery pack and receiver behind the fuel tank. Use two tie wraps to hold the battery and receiver securely in place as pictures below.
*** Test t the aluminium tube dihedral brace into each
wing haft. The brace should slide in easily. If not, use 220 grit sand around the edges and ends of the brace
until it ts properly.
Attach the aluminium tube into the fuselage.
Push in
Insert the wing panel as pictures below.
Push in
Do not permanently secure the receiver and battery until after balancing the model.
6) Using a 2mm drill bit, drill a hole through the side of the fuselage, near the receiver, for the antenna to exit.
Switch of receiver
Battery receiver.
Receiver.
Battery of engine.
Switch of engine
Push in
Screw the wing panel in position.
Secure
Secure
XI. WING ATTACHMENT
Locate the aluminium wing dihedral brace.
Aluminium tube.
422 mm
16
19mm.
XII. INSTALLING COCKPIT
FUSELAGE, PROPELLERS
Please see pictures below.
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P47-THUNDERBOLT
A/B Epoxy glue.
. Item code: BH36-A. Instruction Manual
Open and Close
Position the canopy so the rear frame on the canopy is aligned with the rear edge of the cockpit opening. Use canopy glue to secure the canopy to the canopy hatch. Use low-tack tape to hold the canopy in position until the glue fully cures. Wrap the tape completely around the canopy hatch, as the tape does not stick well to the covering. We used balsa sticks to hold the lower edges of the canopy tightly against the canopy hatch.
Installing the fuselage hatch as same as picture below.
BALANCING
1) It is critical that your airplane be balanced cor- rectly. Improper balance will cause your plane to lose control and crash.
THE CENTER OF GRAVITY IS LOCATED 95MM BACK FROM THE LEADING EDGE OF THE WING.
2) Mount the wing to the fuselage. Using a couple of pieces of masking tape, place them on the top side of the wing 95mm back from the leading edge, at the fuselage sides.
3) Turn the airplane upside down. Place your ngers
on the masking tape and carefully lift the plane. Accurately mark the balance point on the top of the wing on both sides of the fuselage. The balance point is located 95mm back from the leading edge. This is the balance point at which your model should balance
for your rst ights. Later, you may wish to experiment
by shifting the balance up to 10mm forward or back to
change the ying characteristics. Moving the balance
forward may improve the smoothness and arrow- like tracking, but it may then require more speed for take
off and make it more difcult to slow down for landing.
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P47-THUNDERBOLT
Moving the balance aft makes the model more agile with a lighter and snappier ”feel”. In any case, please start at the location we recommend. With the wing attached to the fuselage, all parts of the
model installed (ready to y), and empty fuel tanks,
hold the model at the marked balance point with the stabilizer level.
Lift the model. If the tail drops when you lift, the model is “tail heavy” and you must add weigh* to the nose. If the nose drops, it is “nose heavy” and you must add weight* to the tail to balance.
. Item code: BH36-A. Instruction Manual
Aileron control
Flap control
Elevator control
15mm
15mm
25mm
15mm
15mm
*If possible, first attempt to balance the model by changing the position of the receiver battery and re­ceiver. If you are unable to obtain good balance by doing so, then it will be necessary to add weight to the nose or tail to achieve the proper balance point.
95mm
CG
35mm
35mm
Rudder control
PRE-FLIGHT CHECK
1) Completely charge your transmitter and receiver
batteries before your rst day of ying.
2) Check every bolt and every glue joint in your plane to ensure that everything is tight and well bonded.
3) Double check the balance of the airplane.
4) Check the control surface.
5) Check the receiver antenna. It should be fully
extended and not coiled up inside the fuselage.
CONTROL THROWS
1) We highly recommend setting up a plane using the control throws listed.
2) The control throws should be measured at the widest point of each control surface.
3) Check to be sure the control surfaces move in the correct directions.
Ailerons : 15mm up 15mm down
Flap : 25mm down.
Elevator : 15mm up 15mm down
Rudder : 35mm right 35mm left
18
6) Properly balance the propeller.
We wish you many safe and enjoyable ights
with your
P47-THUNDERBOLT
.
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P47-THUNDERBOLT
NEVER y near power lines,
aerials or other dangerous areas including airports, motorways etc.
. Item code: BH36-A. Instruction Manual
I/C FLINGT WARNINGS
Always operate in open areas, away
ALWAYS adjust the engine from
behind the propeller, and do not allow any part of your body to be in line with the propeller.
from factories, hospitals, schools, buildings and houses etc. NEVER
y your aircraft close to people or
built up areas.
DO NOT dispose of empty fuel
containers on a re, this can lead to
an explosion.
THE PROPELLER IS DANGEROUS.
Keep ngers, clothing (ties, shirt
sleeves, scarves) or any other loose objects that could be caught or drawn in, away from the propeller. Take care at ALL times.
NEVER y in wet conditions or on
windy or stormy days.
Keep all onlookers (especially small children and animals) well back from the area of operation. This is a ying aircraft, which will cause serious injury in case of impact with a person or animal.
NEVER use damaged or deformed
propellers or spinners.
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