Hobby King Piper J3-120 cub User manual

AIRCRAFT SPECIFICATIONS：
Wing Span: 2312mm/91in
WingArea: 80.9 Sqdm
Bottom Wing Area: 31.48 Sqdm/ 487.89 Sqin
Lenght:1450mm/57.25in
Flying Weight: 3600g
RECOMMENDED EQUIPMENT：
Engine: 90~120
Radio: 4ch+6servos
Warning! This model is not a toy.
It is designed for maximum performance. Please seek
advice if one is not familiar with this kind of electric
powered precision model.
Operating this model without prior preparation may cause
in juries.
Remember, safety is the most important thing. Always keep
this instruction manual at hand for quick reference.

1.Wing
Wings Part List
Cut
the
covering
away
for
installing
the
aileron servo
Fix
the
servo
plate
with
instant
glue
Install the aileron’s servo
Fix the servo covering plate with 8pcs
2*8 tapping screw with pad Fix the hinge with instant glue

Fix the aileron horn Bend the push-and-pull pole with L-shaped
completed aileron servo system’s installing
2.Main Landing Wheel
Main Landing Wheel Part List Fix the decorative plywood with 6pcs
M3*15 Socket head screw and 6pcs M3
self-locking nut

Fix the main landing wheel with 8pcs
M4*16 socket head screw Using rubber band to pull the landing gear
Install the main wheel Locking the wheelchocks
Side Windows Part List Apply epoxy glue

Fix the PCV side windows with instant
glue Fix the PCV side windows with instant glue
3.Stabilizer/Vertical/Tail Wheel
Stabilizer/Vertical/Tail Wheel Part List

Draw a line for cutting away the
covering
Judgin
g
by
the
line
to
cutting
the
covering away
Fix the horizontal tail and the vertical
tail with instant glue
Fix the hinge with instant glue
Fix the elevator’s horn Fix the elevaotr’s servos and bend
the push-and-pull pole with L-shaped

completed elevator servo system’s installing
Install the tail wheel and bend the steel
wire
Fix the tail wheel with 2pcs
tapping
screws first
Cut away the wood for fixing the tail wheel
steel wire Drill a diameter 2mm hole for fixing the tail
wheel steel wire

Fix
the
tail
wheel
steel
wire
with
epoxy glue
Fix the rudder hinge with instant gle
Fix the rudder’s horn Judging by the picture passes through
the steel wire and clamp the aluminium
tube for fixing the steel wire
Fix the rudder servo Adjust the steel wire’s length

Complete the rudder servo system’
s
installing
Drill a diameter 3mm hole one the
horizontal tail for fixing the steel wirel
Drill a diameter 3mm hole one the
vertical tail for fixing the steel wirel
Judging by the picture passes through
the steel wire and clamp the aluminium
tube for fixing the steel wire
Fix the connection terminal with another
self tapping screws of the tail wheel set
Fix the connection terminal with 3 pcs
M3*15 socket head screw and 3pcs M3
self-locking nut

Adjust the steel wire’
s
length
then
clamp the aluminium tube
Completed the stabilizer,vertical
tail wheel set installing
4.Wing Support
Wing Support Part List Locking the wing with 2 pcs M4*30
nylon screws
Fix the plywood with epoxy glue Put the aluminium sheet into the
plywood then fix with 6pcs M3*15 socket
head screw ,6pcs M3 self-locking nut and
12pcs ￠3*￠8 pad

Fix the wing support with 6pcs ￠3*12
tapping screw with pad
Apply epoxy glue Fix the steel wire with 4pcs U-shaped
presser and 8pcs￠3*10 tapping screw
5.Canopy/Cowling/Engine/Fuel Tank
Canopy/Cowlling Part List Engine Mounting/Fuel Tank Part List

Fix the canopy with 4pcs ￠2*10 tapping
screw
Fix the plywood with epoxy glue Fix the throttle servo installation plate
with epoxy glue
Fix the trottle servo Put the fuel tank into the fuselage

Fix the engine support
with
4pcs
M4*30 socket head screw
Install the engine and the Throttle
Pushwire
Apply epoxy glue Copleted the engine and cowling
installing
Fix the plywood plate for putting the
figurine