Vmar J3 Piper Cub L4 1375 EP User manual

1
Before beginning assembly,please read these intructions thoroughly.
INSTRUCTION MANUAL
UNDER SAFETY PRECAUTIONS
This radio control model is not a toy!
It is highly recommended that first-time builders seek advice of experienced modelers before beginning assembly.
Assemble this kit only in places out of children’s reach!
Take enough safety precautions prior to operating this model. You are responsible for ths model’s assembly and safe operation!
Always keep this instruction manual ready at hand for quick reference, even after completing the assemble.
Taking out liability insurance is recommended.
*SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
The pre-covered film on ARF kits may wrinkle due to variations
of temprature. Smooth out as explained at right.
Use an iron covered with a cloth!
Start at low setting. Increase the
setting if necessary. If it is too high,
you may damage the film.
with cover (cloth) low setting
ALMOST-READY-TO-RLY
ARTF
Wingspan: 1375mm (54.14")
Length: 870mm (34.25")
2
Wing Area: 27.55dm (418Sq Inch)
Weight: 850-950g (1.9-2lbs)
J3 cub,L4 1375 EPJ3 cub,L4 1375 EPJ3 cub,L4 1375 EP
PIPER
PIPER
PIPER
C
C
C
U
U
U
B
B
B
Motor: 350-450watts
Radio: 4 chanels , 4 servos

Assemble in the
specified order.
Assemble left and right
sides the same way.
Drill holes with the
specified diametre.
Must be purchased
separately!
Apply threadlocker
(screw cement).
Pay attention here! Ensure smooth, non-binding
movement when assembling. Cut off excess.
Do not overlook
This symbol!
Warning!
Symbols used throughout this instruction manual, comprise:
Check all parts. If you find any defective or missing past, contact your local dealer or our VMARSHOP.
Read through the manual before you begin, so you will have an overall idea of what to do.
3
2
1
accepts no responsibility for accidents, damage or breakage if other manufacturers parts are used.
Drill,Bits (2,3,4,6mm)
Cutters Pliers Long Nose Pliers
Shap Hobby Knife
File Scissors
Hex Wrench (2, 2.5, 3mm)
Phillips screwdrivers (size: L, M, S)
Threat locker Cement
SCREW
CEMENT
BEFORE YOU BEGIN
TOOLS REQUIRED (Purchase separately!)
CAUTION : For detalls concerning the equlpment Ilsted below (size, make, etc.) check with your hobby shop.
ITEM REQUIRED FOR OPERATION (Not included in kit!)
2
A minimum 4 channel radio for alrplanes (with 5 standard servos),
and nicad or alkaline batteries are required.
4-channel (minimum) radio system for aircraft 4 servos (standard servos).
Please be sure to sure to use servos with enough torque (3.0 - cm minimum).
Y-Harness 2pcs
Suitable Outer Rotor Motor.
Use outer rotor motor power
between 350~450 w
Motor : KV / 600~900
ESC More than 30A

Cut off shaded portion.
Must be purchased
separately!
2mm
Drill holes with the
specified diameter.
Assemble as many
time as specified.
4
Assemble left and right
sides the same way. Pay close attention here!
TP Screw
2 x 15mm
4
2Assembly
landing gear
1Installing Servo
to the wing
Typical control horn
installations
EZ CONNECTOR “Z”bent
SURFACE CONTROL
< Top view of left wing >
2mm
Drill holes with the
specified diameter.
2 x 15mm
TP Screw
2 x 10mm
4
Plastic washer
4
2mm
3
< Bottom view of left wing >

washer
3mm
screw
3mm
washer
3mm
washer
3mm
screw
3mm screw 3mm
3x20 wing bolt assembly3x20 wing bolt assembly3x20 wing bolt assembly
1. Insert the wing tube onto right wing panel1. Insert the wing tube onto right wing panel
the tighten with the wing bolt to secure the tighten with the wing bolt to secure
to the fuselageto the fuselage
1. Insert the wing tube onto right wing panel
the tighten with the wing bolt to secure
to the fuselage
2 . same procedure the secure the left wing2 . same procedure the secure the left wing
panel to the fuselagepanel to the fuselage
2 . same procedure the secure the left wing
panel to the fuselage
444Install the wing
to the fuselage
NO GLUE NEEDED FOR THIS ASSEMBLY
Aluminum wing joiner tube
size 9mm diameter and 330mm long
4
Nut
2mm
2 x 10mm
8
8
3Assembly wing
struts
2 x 10mm
TP Screws
2mm
Plastic washer
X2
X2

nut 3
1
6
2 x 15mm
3
2mm
5
Install the horizontal and
vertical stab to the fuselage
Assembly tail struts
6
2 x 15mm
2 x 15mm
198mm
172mm
x1
x3
Wooden washer
6
2mm
5
Plastic parts
Plastic parts

PIPER
PIPER
C
C
U
U
B
B
CLEVIS
SURFACE CONTROL
6

82mm
2 x 7mm
4
PIPER
PIPER
PIPER
C
CC
U
UU
B
BB
Battery
Install the motor
7
Install the
cowl and propeller
8
7
2 x 7mm
TP Screws
TP Screws
TYPICAL BATTERY AND SERVOS ARRANGEMENT

High rate
ELEVATOR 0.59"( 15mm ) up
0.59"( 15mm ) down
RUDDER 1"( 25mm ) right
1"( 25mm ) left
ALERON 0.32"( 8mm ) up
0.32"( 8mm ) down
Low rate
0.4"( 10mm ) up
0.4"( 10mm ) down
0.8"( 20mm ) right
0.8"( 20mm ) left
0.24"( 6mm ) up
0.24"( 6mm ) down
Aileron movement
0.32"
8mm
0.32"
8mm
1"
25mm
1"
25mm
0.59"
15mm
0.59"
15mm
Elevator movement Rudder movement
SURFACE CONTROL MOUVEMENT
SURFACE CONTROL
EZ CONNECTOR CLEVIS
APPLY CA GLUE
CG and Surface
control movement
9
13
50~55mm
2-2.1/4in