Instruction Manual
GP
version
EP
version
SPECIFICATION
- Wingspan: 1910mm (75.2in)
- Length: 1522mm (60 in)
- Flying weight: 4.9-5.4 kg
- Wing area: 60.4 dm2
- Wing loading: 81g/dm2
- Wing type: Naca airfoils
- Gear type: Scale main gear and spring
wire for tail gear (included)
- Spinner size: Plastic 90mm (included)
- Radio: 6 channel minimum (not included)
- Servo: 9 standard servo: 2 aileron; 4 Flap;
1 elevator; 1 rudder; 1 throttle (not included)
- Recommended receiver battery:
4.8-6V / 1200-2000mAh NiMH (not included)
- Servo mount: 21mm x 42 mm
- Propeller: suit with your engine
- Engine: 1.20/ 2-stroke or 1.40/4-stroke glow
engine or 20cc gas engine (not included)
- Motor: brushless outrunner 1600-2200 W,
450 KV (not included)
- Gravity CG: 111mm (4.4 in) Back from the
leading edge of the wing, at the fuselage
- Control throw Ailerons: Low: 11mm up/down,
10% expo; High: 13mm up/down, 10% expo
- Control throw Elevators: Low: 11mm up/down,
12% expo; High: 13mm up/down, 12% expo
- Control throw Rudder: Low: 30mm right/left,
15% expo; High: 45mm right/left, 15% expo
- Control throw flap : Mid : 15mm down;
Landing : 20mm down
- Experience level: Intermediate
- Plane type: Scale
RECOMMENDED MOTOR AND BATTERY SET UP
- Motor: RIMFIRE .120 (not included)
- Lipo cell: 5-6 cells / 5500 – 6000mAh (not included)
- Esc: 120-160A (not included)
STUKA Ju87
GP/EP SCALE 1:5 ¾ Size 1.20/20cc ARF
TOOLS AND SUPPLIES NEEDED.
• Medium C/A glue
• 30 minute epoxy
• 6 minute epoxy
• Hand or electric drill
• Assorted drill bits
• Modeling knife
• Straight edge ruler
• 2 bender plier
• Wire cutters
• Masking tape
• Thread lock
• Paper towels
• Rubbing alcohol
SUGGESTION
To avoid scratching your new airplane, do not unwrap
the pieces until 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:
Please trial fit all the parts. Make sure you have the
correct parts and that they fit and are aligned properly
before gluing! This will assure proper assembly. The
STUKA Ju87 GP/EP SCALE 1:5 ¾ Size 1.20/20cc
ARF is hand made from natural materials, every
plane is unique and minor adjustments may have to
be made. However, you should find the fit superior
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.
SAFETY PRECAUTION:
• This is not a toy
• Be sure that no other flyers 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 flip the propeller with your fingers.
• 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.
1
STUKA Ju87
Instruction Manual
INSTALLING THE AILERONs AND FLAPS
SERVOS
1. Install the rubber grommets and brass eyelets
onto the aileron servo.
2. Using a modeling knife, remove the covering from
over the servo box.
3. Place the servo into the servo box. Center the
servo and drill pilot holes through the block of
wood for each of the four mounting screws
provided with the servo.
4. Using the thread 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.
5. Repeat step # 2 - # 5 to install the second aileron
servo in the opposite wing half.
Cut off shaded portion
For Aileron servo
For Flap servo
STUKA Ju87
Instruction Manual
13
INSTALLING THE ENGINE
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 fitted onto the engine
mount. Fit the engine to the engine mount using
the screws provided.
Must be purchased
separately!
Nut
4x30mm Screw
4mm
4
8
4
4mm Washer
Temporarily install the engine and make a hole for the
throttle rod by aligning with the position of the throttle
lever.
Throttle rod
PP Pipe
4x30mm
4x30mm
4mm
4mm
4mm
OS 120 AX
OS 120 AX
OS 120 AX
Throttle Rod
145mm
Engine Mount
a
b
STUKA Ju87
Instruction Manual
14
OS 120 AX
DLE 20
DLE 20
4x30mm
4x30mm
4mm
4mm
DLE 20
Engine Mount
a
b
3. Turn the airplane upside down. Place your fingers
on the masking tape and carefully lift the plane.
4. If the nose of the plane falls, the plane is nose
heavy. To correct this first move the battery pack
further back in the fuselage. If this is not possible
or does not correct it, stick small amounts of lead
weight on the fuselage under the horizontal
stabilizer. If the tail of the plane falls, the plane is
tail heavy. To correct this, move the battery and
receiver forward or if this is not possible, stick
weight into the firewall. When balanced correctly,
the airplane should sit level or slightly nose down
when you lift it up with your fingers.
BALANCING
1. It is critical that your airplane be balanced correctly.
Improper balance will cause your plane to lose
control and crash.
THE CENTER OF GRAVITY IS LOCATED
111mm
(4.4 in) BACK FROM THE LEADING EDGE OF
THE WING, AT THE FUSELAGE. BALANCE A
PLANE UPSIDE DOWN WITH THE FUEL TANK
EMPTY.
2. Mount the wing to the fuselage. Using a couple of
pieces of masking tape, place them on the top
side of the wing
111mm
(4.4 in) back from the
leading edge, at the fuselage sides.
STUKA Ju87
Instruction Manual
21
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.
!
LATERAL BALANCE
After you have balanced a plane on the C.G.
You should laterally balance it. Doing this will
help the airplane track straighter.
1. Turn the airplane upside down. Attach one loop
of heavy string to the engine crankshaft and
one to the tail wheel wire. With the wings level,
carefully lift the airplane by the string. This may
require two people to make it easier.
2. If one side of the wing fall, that side is heavier
than the opposite. Add small amounts of lead
weight to the bottom side of the lighter wing
half's wing tip. Follow this procedure until the
wing stays level when you lift the airplane.
Aileron 11mm up
11mm down
Elevator 11mm up
11mm down
Rudder 30mm right
30mm left
Flap
15mm
Low rate:
111mm
(4.4 in)
BASIC CONNECTION FOR AIRPLANE AND ADJUSTMENT OF SERVOS
FOR YOUR RADIO INSTALLATION
Example of connection
For more information, refer to radio system instruction manual.
Follow instruction manual of Engine and Battery.
Y-Harness
Switch
Receiver
Engine
Throttle Servo
Battery (Receiver)
Rudder
Elevator Servo
Elevator
Aileron Servo
Aileron Servo
Aileron
Aileron
Flap Servo
Flap Servo
Flap
Flap
Flap Servo
Flap Servo
Flap
Flap
Rudder Servo
STUKA Ju87
Instruction Manual
22
Elevator Control
Aileron Control
11mm
11mm
Rudder Control
30mm
30mm
11mm
11mm
FLIGHT PREPARATION PRE FLIGHT CHECK
1. Completely charge your transmitter and receiver
batteries before your first day of flying.
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.
6. Properly balance the propeller.
Flap Control
15mm
STUKA Ju87
Instruction Manual
7
Apply epoxy glue
Align the center line of
vertical fin with rudder.
Secure nylon hinges with
instant glue, being careful
vertical fin and rudder.
INSTALLING ruDDER AND TAIL GEAR
Apply threadlocker (screw cement).
Ensure smooth, non-binding
movement when assembling
3mm Collar
3 x 4mm Set Screw
3 x 15mm TP Screw
2
1
3x4mm
3x15mm TP
3x15mm TP
INSTALLING THE RUDDER PUSHROD
1. Locate the pushrod exit slot on the right side of the
fuselage.
2. Carefully cut away the covering material from the
slot.
3. Working from inside the fuselage, slide the
threaded end of the remaining pushrod down the
inside of the fuselage until the pushrod reaches
the exit slot. Carefully reach in with a small screw
driver and guide the pushrod out of the exit slot.
4. Install the clevis on the rudder pushrod. Make sure
6mm of thread shows inside the clevis.
5. The control horn should be mounted on the right
side of the rudder at the leading edge, in line with
the rudder pushrod.
6. Attach clevis to the hole in the control horn. Install
a silicone tube on the clevis.
7. Locate one nylon servo arm, and using wire
cutters, remove all but one of the arms using a
2mm drill bit, enlarge the third hole out from the
center to accommodate the rudder pushrod wire.
8. Plug the rudder servo into the receiver and center
the servo. Install the servo arm onto the servo.
9. Center the rudder and hold it in place using a piece
of masking tape.
10. With the rudder and rudder servo centered,
carefully place a mark on the rudder pushrod wire
where it crosses the hole in the servo arm.
11. Using a pliers, carefully make a 90 degree bend
up at the mark made. Cut off excess wire, leaving
about 6mm beyond the bend.
12. Insert the 90 degree bend up 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 and remove the masking tape
from the rudder.
13.Using thick CA glue, secure the pushrod sleeves to
the pushrod sleeve guide.
90 Degree
2x10mm(TP)
2x10mm(TP)
25
EXPLODED VIEW
2mm
2mm
2mm
2mm
2mm
2mm
2x10mm(TP)
2x10mm(TP)
3x12mm(TP)
4x15mm
5x35mm
3x12mm(TP)
3x12mm(TP)
3x12mm(TP)
3x12mm(TP)
4x15mm
3x12mm(TP)
5x35mm
2x10mm(TP)
2x10mm(TP)
Apply instant glue
(CA glue, super glue).
Align the center line of horizontal tail
with elevator.
Cut away film only here
Secure nylon hinges with instant glue,
being careful tail wing and elevator.
Make certain plane is aligned accurately per the diagram.
A mis-aligned plane can fly erraticaliy and cause accidents.
Warning!
STUKA Ju87
Instruction Manual
6
HORIZONTAL STABILIZER INSTALLATION
1. Using a modeling knife, cut away the covering
from the fuselage for the stabilizer and remove it.
2. Remove the covering from the stabilizer.
When cutting through the covering to remove it,
cut with only enough pressure to only cut
through the covering it's self. Cutting into the
balsa structure may weaken it. This could lead
to possible failure during flight.
3. Attach the wing to the fuselage as picture.
4. Test the position of the elevator and adjust it as
shown.
5. When you are sure that everything is aligned
correctly, mix up a generous amount of 30 minute
epoxy. Apply a thin layer to the bottom and to the
top of the stabilizer mounting area and to the
stabilizer mounting platform sides in the fuselage.
Insert 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.
6. 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 fill
in any gaps that were not filled previously and clean
up the excess using a paper towel and rubbing
alcohol.
7. Repeat step 1 - step 2 from the installing aileron for
the installing elevator.
Cut off shaded portion
Apply epoxy glue
STUKA Ju87
Instruction Manual
16
INSTALLING THE SPINNER
Install the spinner back-plate, propeller and
spinner cone. The spinner cone is held in place
using two screws.
The propeller should not touch any part of the
spinner cone. If it dose, use a sharp modeling
knife and carefully trim away the spinner cone
where the propeller comes in contact with it.
!
MOUNTING THE COWL
1. Remove the muffler and needle valve assembly
from the engine. Slide the fiberglass cowl over the
engine.
2. Measure and mark the locations to be cut out for
engine head clearance, needle valve, muffler.
Remove the cowl and make these cutouts using a
rotary tool with a cutting disc and a rotary sanding
drum attachment.
3. Slide the cowl back into place. 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 the middle of the precut opening. Hold the cowl
firmly in place using several pieces of masking
tape.
Enlarging the holes through the cowl will prevent
the fiberglass from splitting when the mounting
screws are installed.
6. Slide the cowl back over the engine and secure it
in place using four screws.
7. Install the muffler. Connect the fuel and pressure
lines to the carburator, muffler and fuel filler
valve. Tighten the screws completely.
!
4. While holding the cowl firmly in position, drill
four 1,6mm pilot holes through both the cowl
and the side edges of the firewall.
5. Using a 3mm drill bit, enlarge the four holes in
the cowling.
3 x 12mm TP Screw
17mm
60mm
26mm
16mm
Trim the cowling so it will match
your engine
Washer
5mm
3x12mm
I/C FLIGHT GUIDELINES
Made in Vietnam
When ready to fly, first extend the
transmitter aerial.
Operate the control sticks on the
transmitter and check that the control
surfaces move freely and in the
CORRECT directions.
ALWAYS
land the model INTO the
wind, this ensures that the model lands
at the slowest possible speed.
Switch on the transmitter.
Switch off the transmitter.
Check that the transmitter batteries
have adequate power.
Switch off the receiver.
Switch on the receiver.
ALWAYS
take off into the wind.
Check that the wings are correctly
fitted to the fuselage.
If the model does not respond correctly
to the controls, land it as soon as
possible and correct the fault.
Empty the fuel tank after flying, fuel left
in the tank can cause corrosion and
lead to engine problems.
I/C FLIGHT WARNINGS
Always operate in open areas, away
from factories, hospitals, schools,
buildings and houses etc.
NEVER
fly
your aircraft close to people or built
up areas.
THE PROPELLER IS DANGEROUS
Keep fingers, 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.
Keep all onlookers (especially small
children and animals) well back from
the area of operation. This is a flying
aircraft, which will cause serious
injury in case of impact with a person
or animal.
NEVER
fly near power lines, aerials
or other dangerous areas including
airports, motorways etc.
NEVER
use damaged or deformed
propellers or spinners.
DO NOT
dispose of empty fuel
containers on a fire, this can lead to
an explosion.
NEVER
fly in wet conditions or on
windy or stormy days.
ALWAYS
adjust the engine from
behind the propeller, and do not allow
any part of your body to be in line
with the propeller.
23
TAIL Gear Dimensional Detail
STUKA Ju87
Instruction Manual
Main Gear Dimensional Detail
105.0
8.0
6.2
3.6
16.0
15.6
M6
19
57.5
45.0
55.0
M4
14
14
14
43,5
38,5
186,96
44.0
3.5
54.0
10.0
17.0
25.5
R7.5
25.0
13.0
24.5
87.5
23.5
20.1
28.0
7.7
49.6
10.0
137.0
2.5
2
STUKA Ju87
Instruction Manual
Must be purchased
separately!
Assemble left and right
sides the same way
Cut off shaded portion
Set all scerws securely. If they come off during
flight you will lose control of your aircraft!
Warning!
Aileron
24
Flap
Flap
Tie the string.
Pull out servo
cord with string.
6
STUKA Ju87
Instruction Manual
20
Top Hatch
< Check the motor rotation >
Electric Speed Controller
Open and close
C.A glue
Adhesive tape
Epoxy,white or
silicone glue
Pilot
When rotating clock wise, change the
connection of 2 wires.
STUKA Ju87
Instruction Manual
3
INSTALLING THE AILERON and flap
LINKAGES
< Bottom view >
Cut off shaded portion
Assemble left and right
sides the same way
Aileron
6
Flap Rod
Flap
Flap
Silicone tube
Apply instant glue
(CA glue, super glue).
1. Working with the aileron linkage for now, thread
one nylon clevis at least 14 turns onto one of the
2mm x 180mm threaded wires.
2. Attach the clevis to the outer hole in the control
horn. Install a silicone tube on the clevis.
3. Locate one nylon servo arm, and using wire
cutters, remove all but one of the arms. Using a
2mm drill bit, enlarge the third hole out from the
center of the arm to accommodate the aileron
pushrod wire.
4. Plug the aileron servo into the receiver and center
the servo. Install the servo arm onto the servo.
The servo arm should be perpendicular to the
servo and point toward the middle of the wing.
5. Center the aileron and hold it in place using a
couple of pieces of masking tape.
6. With the aileron and aileron servo centered,
carefully place a mark on the aileron pushrod wire
where it crosses the hole in the servo arm.
7. Using pliers, carefully make a 90 degree bend
down at the mark made. Cut off the excess wire,
leaving about 6mm beyond the bend.
8. 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 and remove the masking tape
from the aileron.
9. Repeat step # 4 - # 8 to install the second aileron
linkage. After both linkages are completed,
connect both of the aileron servo leads using a
Y-harness you have purchased separately.
Aileron Rod
Apply instant glue
(CA glue, super glue).
STUKA Ju87
Instruction Manual
8
Silicone tube
Set all screws securely. If they come off during
flight you will lose control of your aircraft!
Install the horn in a position so
the rod is straight
Pay close attention
Must be purchased separately!
Cut off shaded portion
4mm Washer
8
5mm Collar
2
2
8
4mm Spring Washer
5 x 35mm Cap Screw
Apply epoxy glue
4x15mm Screw
8
3 x 12mm TP Screw
18
STUKA Ju87
Instruction Manual
4
INSTALLING THE MAIN LANDING GEAR
Assemble left and right
sides the same way
< Main Gear (R) >
< Main Gear (L) >
Cut off shaded portion
4x15mm
3x12mm
4mm
3x12mm
4mm
4x15mm
4x20mm
4mm
4mm
4mm Washer
1
1
1
4mm Spring Washer
4 x 20mm Screw
SECURE The Wing To The Fuselage
Assemble left and right
sides the same way
STUKA Ju87
Instruction Manual
5
Cut off shaded portion
Assemble left and right
sides the same way
5x35mm
Plate of plywood
3x12mm
3x12mm
5mm
4x4mm
Apply threadlocker (screw cement).
Plastic
STUKA Ju87
Instruction Manual
9
Pay close attention
Cut off excess.
INSTALLING THE ELEVATOR PUSHROD
1. Locate the pushrod exit slot on the right side
and left side of the fuselage. It is located
slightly ahead and below the horizontal
stabilizer.
2. Carefully cut away the covering material from
the slot.
3. Working from inside the fuselage, slide the
threaded end of the pushrod until it reaches the
exit slot. Carefully reach in with a small screw
driver and guide the pushrod out of the exit slot.
4. Install the clevis into the two elevator pushrod.
Make sure 6mm of thread shows inside the clevis.
5. The control horn should be mounted on the
bottom, left side and right side of the elevator at
the leading edge, in line with the elevator
pushrod.
6. Attach clevis to the hole in the control horn.
Install a silicone tube on the clevis.
7. Connect the two elevator pushrod using the
metal domino.
8. Locate one nylon servo arm, and using wire
cutters, remove all but one of the arms. Using a
2mm drill bit, enlarge the third hole out from the
center to accommodate the elevator pushrod
wire.
9. Plug the elevator servo into the receiver and
center the servo. Install the servo arm onto the
servo. The servo arm should be perpendicular
to the servo and point toward the middle of the
fuselage.
10. Be sure both elevator halves are flat. Center
both elevator halves and hold them in place
using a couple of pieces of masking tape.
11. With the elevator halves and elevator servo
centered, carefully place a mark on the elevator
pushrod wire where it crosses the hole in the
servo arm.
12. Using pliers, carefully make a 90 degree bend
up at the mark made. Cut off the excess wire,
leaving about 8mm beyond the bend.
13. Insert the 90 degree bend up 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 and remove the
masking tape the elevator halves.
Rudder Servo
2
Apply instant glue
(CA glue, super glue).
STUKA Ju87
Instruction Manual
10
Must be purchased separately!
Cut off shaded portion
Pay close attention here
Cut off excess.
Elevator Rod
Elevator
Set all screws securely. If they come off during
flight you will lose control of your aircraft!
Pay close attention here
approx. 13mm
Elevator Rod
3x4mm
Elevator Servo
Silicone
Apply threadlocker (screw cement).
Cut off shaded portion
Ensure smooth, non-binding movement
when assembling
Must be purchased separately!
3. Slide the adjustable metal connector / servo arm
assembly over the plain end of the pushrod wire.
Position the throttle stick and the throttle trim at
their lowest positions.
4. Manually push the carburator barrel fully closed.
Angle the arm back about 45 degree from center
and attach the servo arm onto the servo. With the
carburator barrel fully closed, tighte the set screw
in the adjustable metal connector.
5. Remove the excess throttle pushrod wire using
wire cutters and install the servo arm retaining
screw.
!
INSTALLING THE THROTTLE
1. 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 flight.
2. Plug the throttle servo into the receiver and turn on
the radio system. Check to ensure that the throttle
servo output shaft is moving in the correct
direction. When the throttle stick is moved forward
from idle to full throttle, the throttle barrel should
also open and close using this motion. If not,
reverse the direction of the servo, using the
transmitter.
STUKA Ju87
Instruction Manual
15
Connector
1
Adjust the throttle input (transmitter throttle stick),
throttle trim movement and the carburattor opening
to the suitable position and screw in the 4x4mm
set screw.
Throttle Servo
INSTALLING THE SWITCH
1. The switch should be mounted on the fuselage
side, opposite the muffler, close enough to the
receiver so the lead will reach. Use the face plate
of the switch cut out and locate the mounting
holes.
2. 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.
3. Secure the switch in place using the two machine
screws provided with the radio system.
!
INSTALLING THE RECEIVER AND BATTERY
1. 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.
2. Wrap the receiver and battery pack in the protective
foam to protect them from vibration. Use a rubber
band or masking tape to hold the foam in place.
Do not permanently secure the receiver and battery
until after balancing the model.
3x8mm Cap Screw
4
STUKA Ju87
Instruction Manual
17
3x8mm
Spinner
Spinner
Propeller
Foam Pad
Tape
Battery
Foam Pad
Receiver Tape
open and close the canopy
STUKA Ju87
Instruction Manual
19
Velcro
Battery
Battery Cord
Electric Speed Controller
Adhesive tape
Epoxy,white or
silicone glue
C.A glue
!
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 5mm away 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 muffler.
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.
5. Test fit the stopper assembly into the tank. It
may be necessary to remove some of the
flashing around the tank opening using a
modeling knife. If flashing is present, make
sure none of it falls into the tank.
6. When satisfied 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.
INSTALLING THE Fuel Tank
!
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
compartment and through the pre-drilled hole in
the firewall. 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 firewall.
Blow through one of the lines to ensure the fuel
lines have not become kinked inside the fuel
tank compartment. Air should flow through
easily.
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.
9. Secure the fuel tank.
INSTALLING THE THROTTLE PUSHROD SERVO
1. Place the engine into the engine mount and align it
properly with the front of the cowling.
If your engine is equipped with a remote needle
valve, we suggest installing it into the engine at
this time.
2. Slide the pushrod housing through the hole in the
firewall, through the hole in the forward bulkhead,
and into the servo compartment.
!
3. Apply epoxy glue to the pushrod housing where it
exits the firewall and where it passes through the
forward bulkhead. This will secure the housing in
place.
4. Using a modeling knife, cut off the nylon pushrod
housing 26mm in front of the servo tray.
STUKA Ju87
Instruction Manual
12
Zip tie
Silicone Tube
Fuel Tank
Foam ring
STUKA Ju87
Instruction Manual
11
INSTALLING THE ENGINE MOUNT
Apply threadlocker
(screw cement).
4 x 30mm Cap Screw
4mm Washer
4mm Spring Washer
4x30mm
4x30mm
4mm
4mm
4mm
4mm
Engine Mount
3x12mm
180mm
70mm
112.3mm
3x12mm
3 x 12mm TP Screw
6
OS 120 AX
Engine Mount
a
b
May be you also need to trim
some wood from the tri-angle
wood for the installation is easy.
INSTALLING THE ELECTRIC MOTOR ( EP VERSION )
4x30mm
10x15mm
5mm
4x30mm
Must be purchased
separately!
Apply threadlocker (screw cement).
STUKA Ju87
Instruction Manual
18
On
Off
Switch
Receiver
Battery
Must be purchased
separately!
4x70mm
4x70mm
4mm
4mm
5mm
10x50mm
4mm
4mm
Electric Speed Controller
White glue
4mm Washer
8
8
4mm Spring Washer
4 x 70mm Cap Screw
4 x 30mm Cap Screw
5mm Washer
12
10x15mm Aluminum
4
10x50mm Aluminum
4
24
EXPLODED VIEW
3x12mm(TP)
2mm
2mm
2x10mm
4x4mm
4x30mm
4x30mm
4x30mm
4mm
4mm
4mm
4mm
4x70mm
4mm
4mm
4x20mm
3x8mm
3x4mm
3x4mm
3x15mm TP
2mm
2mm
2mm
4x30mm
10x15mm
5mm
5mm
10x50mm
4mm
