Vmar J3.PIPER GUB, L4-GRASSHOPPER Assembly & Operation Manual

ALMOST

READY

TO FLY MODEL

J3.PIPER

GUB

L4-GRASSHOPPER

ASSEMBLY

& OPERATIONS

MANUAL

Please review

this

manual

thoroughly

before assembling or

operating this model.

Proceeding with

assembly

and use of this

product

indicates

A Remote

Gontrol Model Aircraft is not

a

toy.

lt is

a flying

model

that functions

much like

a

full

size

airplane. lf

you

do not

assemble

and operate this

product properly

you

can cause injury

to

yourself

and others and

damage

prop-

erty. DO

NOT FLY this model

if

you

are not

qualified.

You

are entirely responsible

for

the mechanical,

aeronautical and electrical integrity

of this model

and it's

structure,

control

surfaces, hinges, linkages,

covering,

engine, radio, wiring,

battery

and all other

components.

Gheck all components

before and after

each flight.

Don't

fly until it's

right!

POLYCOTE*EGS

ENHANCED

COVERING

SYSTEM

w

Agreement With

&

Acceptance

of the

following

Liability Disclaimer.

Model

airplanes, model

engines, model

engine

fuel,

propellers

and

related

accessories,

tools and equipment

can be haz-

ardous if improperly

used. Be cautious

and

follow

all

safety

recommendations

when using

your

VMAR

model

airplane.

Keep hands,

tools, clothing

and all

foreign

objects well

clear of

engines when

they are

operating.

Take

particular

care to safe-

guard

and

protect

your

eyes and

fingers

and the

eyes and

fin-

gers

of other

persons

who

may be nearby.

Use only a

good

quality propeller

that has no

cracks or flaws.

Stay clear of the

propeller

and

stay clear of the

plane

of rotation defined

by

the

propeller.

The Manufacturer,

Distributor,

Retailer and/or

other

suppliers of this

product

expressly

disclaim any warranties

or

representations,

either expressed or implied,

including

but

not

limited

to implied warranties

of

fitness

for the

purposes

of

achieving and sustaining remotely

controlled flight. ln no

event

will the Manufacturer, Distributor,

Retailer

and/or other suppli-

ers of this

product

have any obligation

arising from

contract or

toft, or for loss

of

revenue

or

profit,

or for indirect,

special, inci-

dental, consequential

or other damages

arising

from

the use

of

this

product.

ln

purchasing

and/or

using this

product,

the

user

accepts

all

responsibility

for its use

and accepts all liability

associated with such use.

The

Graphics

and Detailing

are

inside

the POLYCOTE ECS/

WING ASSEMBLY

Parts

needed

-

Roll of

wing

joiner

tape

-

Right and

left wing

panels

-

Wing

joiner

(also

called dihedral

brace)

Step

1.1 Locate

the wing

joiner

(also

called

Dihedral

brace). Using

a

ruler, determine

the center

of the wing

join-

er and

mark it with a

pencil

as illustrated

in 1B.

Step

1.2 Trial fit the

wing

joiner

into the

wing

panels.

lt

should

insert

smoothly

up

to the center

line as

illustrated

in

SIIETSN

1A-

Left

and

right

wing

panels

Step

1.3 Apply

plenty

of 30

minute

Epoxy to one end

of the

wing

joiner

using

a stir stick

or epoxy

brush as

illustrated

in

1D.

Carefully

insert

the epoxy

coated

half

of

the wing

join-

er

into one

wing

panel

as

illustrated

in

'lE.

See

1F and use a cloth

or

tissue to wipe away

any excess

epoxy

that squeezes

out of

the

joint.

Repeat this

process

rL

UP

1C- Trial

fit

the

wing

joi

UP

Center

line

pointing

up

1E-

Carefully

insed the

joiner

all the

way to the center

line

2

.

JOINING

THE

WING HALVES

Tools and

Adhesives

needed

-

30

minute epoxy

-

Epoxy brush

or stir sticks

-

Disposable

mixing dish

for the epoxy

-

Sandpaper

(Coarse

240

grit

recommended)

-

Low tack

masking tape

-

Pencil,

knife, ruler

-

Paper

towels

1C. Now slide

the other

wing

panel

onto

the wing

joiner

until the

wing

panels

meet. lf the

fit is overly

tight, sand

the

wing

joiner

slightly and

try again.

Mark the

joiner

to

indicate

which

way is UP

as illustrated

in 18.

UP

1B-

Preparation of

wing

joiner

several

times

to ensure

the

wing

joiner

and cavity

are

well

coated

with 30 minute

epoxy.

When the

wing

joiner

& cavity

are

well coated

with 30

minute epoxy,

inserl the

joiner

to the center

line,

wipe away

any excess

epoxy

and let dry.

(Note:

Do

not

use

5

minute

epoxy

or CA to

join

the wings).

1D- Apply

plenty

of 30 minute epoxy

to the

wing

joiner

n

1F

-

Wipe off the excess

epoxy then allow

to cure

WING

ASSEMBLY - JOINING THE WING HALVES

(Gont.)

2A- Apply

plenty

of30 minuta epory 2B-Align the two wing

panels

and 2C- Use low tack masking tape to

hold

gluetoall

surfac6 slowly close the

gap

until the tightly together

:ilg",'iil

"11f"."31"

rirmr' in

Step 2.4 Once the epoxy has cured completely

(allow

sev- supplied.Starting on

the bottom side of the wing, stick the

eral

hours

at

least), the

tape can

be carefully removed from tape centrally over the

joint

ensuring that it is

pressed

down

the

wing

panels.

Peel the tape back on

itself...

do

not

pull

firmly

as

you

work around the wing. Wrap the tape all the

upright away from the wing.

To

seal and

finish

the

joint

in way

around

the wing

joint

in one

piece,

starting and finish-

the wings, a roll of wing

joiner

tape has been

ing

on the bottom.

Step

2.1

When the epoxy has cured in Stage 1, trial fit the

second wing

panel

onto the

wing

joiner

first

to ensure that

the two

panels

fit without

an excessive

gap.

Step

2.2 Now

apply

plenty

of epoxy to the wing

joiner

and

wing

root ribs of both wing

panels.

Use only

30

minute

epoxy

to

ensure a strong bond

and

give yourself plenty

of

working time. As described in the Step 1.3, repeatedly

apply epoxy

and

insert into the wing

joiner

cavity,

the

epoxy

should ooze

from

the

joint

and the excess should be

cleaned off

with

a

rag or tissue before it cures.

Step

2.3

Use

low tack maskilg tape to

align

the wing sur-

faces and hold the

two

panels

together until

the

epoxy

cures.

3A- Prepare the servos

by

fitting

the

rubber

grommets

&

ferrules

supplied

with

your

seryos

2D- Apply tape over the

joint

starting

here on the boftom as shown

To install

the aileron servos into the wing

you

will need

the

following

items:

-

2 micro

servos

(with

mouting

screws control arms

and

grommets)

-

Two

aileron control rod

assemblies

with

a clevis screwed onto both ends

-

Low

tack masking tape

-

2

aileron

control

horn assemblies

-

2 aileron

extension cables

12

in

(30

cm)

Step 3.1 Turn the wing upside down.
Step

3.2

Trial

fit the aileron servo into the

servo

mounting

cavity. You may have

to modify

the cavity

slightly to

provide

clearance

for

the

servo and servo wires.

Step

3.3 Use a hobby knife to modify the

cavity as

required.

Most servos have

their

output shaft closer to

one end than

the

other. Mount the servo so that the

output shaft is

closer to the leading edge of the wing.

Step 3.4 Securely attach an aileron

extension cable

to

the servo. Thread the

cable through the wing tube

to the center of the wing. Screw the servo into

place

with the

screws

and

grommets

supplied.

lt

is important to install the

grommets

and screws correctly. See the manual that

came

with

your

radio

for

intructions

about

your paticular

servo

grommets.(Note

that in some type

servo

installation

without

the

grommets)

Step 3.5 Fasten

the screws down according to the seryo manufacturers recom-

mended

tightness.

Step 3.6 Repeat step 3.2 to 3.5 for the other wing

panel.

2E-Continue applying the tape over

2F-

Gontinue

back around to the bgttom

the top of the wing,

pressing

down

of

the wing & overlap

the tape

where

you

firmly

as

you go

stafted.

Trim

off excess tape

INSTALLING THE AILERON

SERVO

INTO THE WING

38- Aileron servo location

INSTALLING

THE AILERON

CONTROL

SYSTEM

Step 4.1

Consult

your

radio instruction manual

and center

the

aileron

servos using either a Y connector

or a comput-

er

radio

that accomodates the use

of

two

aileron servos.

Turn on the

transmitter and then the receiver.

Center the

aileron trim

lever on the transmitter. Remove

the servo arm

mounting

screws and servo arms.

Step

4.2 Mount

the servo arms

back on the servos so that

the

seruo arms are

parallel

with the

back edge of the wing.

Screw the arms into

place

using the servo arm mounting

screws supplied with the servos.

Step

4.3

Locate the two aileron

control

rods in

the hard-

ware

bag

(see

4A). Ensure the

clevises are screwed well

onto the threaded

portion

of

the rod.

Rotate

and tug

aggressively

on

the

clevises and ensure that

they are not

loose

on the

rods.

Step 4,4Tape

the ailerons into

their

neutral

position

so that

they are

even with the trailing

edge of

the wing

and not

pointing

either up or down.

Step

4.5

Install the aileron control horns

as illustrated in 48

and ensure they align with the

servo arms.use 30 minute

epoxy .

dr*lfl**rd

4A- Aileron

control

rod

assembly

Step 4.6

Connect the aileron servo

control

rods

between

the aileron control horns

and the aileron seryo

arms as

shown in 4C.

Step

4.7

Carefully remove the masking tape holding

the

ailerons.

Step 4,8 Turn on

your

radio and

activate the ailerons, using

the aileron

stick and

ensure that

a smooth full motion can

be achieved.

Step

4.9

With the wing top side up

and

viewed from the

back,

ensure that

moving

the transmitter aileron

stick

to the

left raises the left

aileron and lowers the right aileron.

Movement

of the stick to the left will roll the aircraft to the

left.

(Counterclockwise

roll of the wing when viewed

fr:om

the back).

Step 4.10 With the wing

top side up and viewed from the

back, ensure that moving

the transmitter aileron stick to the

right raises the right

aileron and lowers the left aileron.

Movement

of the stick to the right will roll the

aircraft to the

right.

(Clockwise

roll of the wing when viewed from

the

back).

48-

Aileron control horn

after installa-

tion using

30

minute

epoxy

4G- Connect the

aileron control rod

between

the servo arm and the con'-

trol horn

HORIZONTAL

AN D

VERTICAL

STABI

LIZERS

To

install the

stabilizers

into

the fuselage

you

will need.

-

Fuselage

-

Veftical

stabilizer with

pre-installed

rudder

-

Horizontal

stabilizer with

pre-installed

elevator

-

30

minute

epoxy

Horizontal

slot

5A- The fuselage

slots for

the

vertical

&

horizontal

stabilizers

4

58- Horizontal stabilizer with

installed elevator

pre-

5C- Vertical stabilizer

with

installed rudder

Vertical slot

pre-

HORIZONTAL

STABILIZER

Check

the fit

of the horizontal

stabilZer in ibs

sbt Make

sure the hori-

zontal

stabilizer is

square

and centered

to the

fuselage

by taking

measurements

as shown in

pictures

6A,

68 and

6C.

Do

not

glue

anything

yet

6A- Trial

fit the horizor*d

sl*tur in

its

slot

Equal

distance

68- Alignment

of horizontal

stabiliar top view

6G- Alignment back

view

INSTALLING

THE HORIZONTAL

STABILIZER

Step 7.1 With

the horizontal

stabil2er-

aligned

correctly,

mark the

shape

of

the fuselage

on the top

& bottom

of the

horizontal

stabilizer.

Using

a

water

sol-

uble non-permanent

felt-tip

pen

as

shown here.

Step 7.2 Now

remove

the horizontal

stabilizer.

Using a sharp knife

& a ruler

CAREFULLY

cut 1/B'

(3

mm) inside

the marked

lines & remove

the cover-

ing

on the top

& bottom

of the horizon-

tal stabilizer

as illustrated.

Make

sure

you

only cut

the film & not

the wood,

otherwise

the horizontal

stabilizer will

be severely

weakened

& fail.

USA

CA

TO FILL

AND

REPAIR

ANY

CUT

MARKS

IN THE

WOOD.

7C-

Marked lines

on horizontal

stab

7E- Remove

the

covering from

top

surface

Step 7.3 Now

apply sufficient

epoxy to the top

and bottom of the horizontal

stabilizer

and horizontal

slot. Use 30 minute

epoxy to

ensure a strong

bond and

give

yourself plenty

of working

time. See ZH & 7l

Step 7.4 Insert

the horizontal

stabilizer in its slot in

the fuselage and re-check

the alignment

as in Stage

6. See 7J & 68

Step 7.5 Excess

epoxy should

be cleaned off with a rag

or tissue

before it cures. See 7K

78- ...and

the bottom

bilizer...

-

Exactly

the

same unde

7H-

Apply

plenty

of

30 minute

ePory

slot

into

the

horizontal

FITTING

THE

VERTICAL

STABILIZER

Step

8.1

Check

the

fit of the

vertical stabilizer

in its slot.

Make sure

that

it is

square

to the

horizontal

stabilizer

and

fuselage.

See

8A

Step

8.2

Mark the

shape

of

the

fuselage

on

the

left &

right sides

of

the vertical

stabilizer

using

a

felt-tip

pen.

See

BB

Step

8.3

Now

remove

the vertical

stabilizer.

Using

a sharp

knife

&

ruler

CARE-

FULLY cut

just

1iB"

(3mm)

inside

the

marked

lines

(see

8C) and

remove

the cov-

ering

on both

sides

of

the

fin

(see

BD),

just

as

you

did

with

the

horizontal

stabi-

lizer,

making

sure

you

only

press

hard enough

to cut

the covering,

not the

verti-

cal

stabilizer.

USA

CA

TO

FILL AND

REPAIR

ANY

CUT

MARKS

lN

THE

WOOD.

88-

Mark both

sides

of

the

vertical

stabilizer

8E-

Apply

plenty

of 30

minute

epoxy

6

8G- Garefully

cut

through

the

cover'

ing.

Do

NOT cut

the

wood

8F- Slide

the stab

into

Place

&

remove

excess

epoxy

8A-

Trial

fit the

vertical

the

fuselage

slot

SG- 90

degree

angle

between

the

hor'

izontal

and

vertical

stabs.

Step

8.4 Now apply

sufiicient

epoxy to both

sides & the

Step 8.5

Insert the

vertical stabilizer

in its

slot in the fuse-

bottom of the

vertical stabilizer

as illustrated

in 8E. Use

30 lage and

re-check

the alignment.

Excess adhesive

should

minute epoxy

to ensure

a strong bond

and

give yourself

be

cleaned off

with a rag or

tissue before

it cures.

7l-

Apply

plenty

of

30

minute

epory

to

the

horizontal

sta'

7J- Slide

the

horizontal

stabilizer

into

place

7K-

Wipe

off excess

30

minute

ePoxY

stabilizer

jnto

8D-

Remove covering

from both

sides

INSTALLING

THE LANDING

GEAR

matn

INSTALLING

THE TAIL WHEEL

10D-

Use two straps and four 10x2mm

screws to mount the main landing

gear

assembly

--

Rudder

steering wire

1/

E

f

i:

The J3

piper

cup has a tail

dragger

gear

configuration

using

a

tail wheel

and main

landing

gear.

FITTING

THE MAIN LANDING

GEAR

ldentify the main landing

gear

components shown below

-

2

pre-assembled

main landing

gear

-

Pre-assembled tail wheel

-

Three

3x8

[mm]

bolts

with

nuts and washes

NOTE: In

some

markets

this model is

supplied

with

fairings for the main

landing

gear.

lf

your

model was

supplied with fairings

and

you

wish

to install

them

please

use the fasteners

provided

and consult the

picture

in

Stage 9.

ldentify

the tail wheel

components

per

illustration

11A:

-

1 tail wheel

assemblv

i:.

...1

,

i.

i

tF.!..i,r,'.-:-i

.,.'

..,

i .-

118 - Insert

the rudder steering wire

into the

steeing

guide

tube on the bot-

tom of the rudder.

Pre-bent

main landing

gear

wires

10A- Main landing

gear

components

lt.

i

10C- Insert the

pre-bent

main landing

gear

into the fuselage

6;

dJ

gc

s+

qs

el Mounting Bracket

11A- Tail wheel assembly

mounting

11D

-

Trim off

the excess rudder

steer-

ing wire.

\

\

11C

-

Screw the tail wheel

bracket to

the

fuselage.

INSTALLING THE

ELECTRIC MOTOR AND ESC

Electric motors vary in size, styles and mounting method.
Always refer to the mounting instructions applicable to

your

motor.

We illustrate

the

general

installation

procedure

here utiliz-

ing

the

recommended

standard

VMAX Brushless Motor

#VMM

111818VM

(factory

ref

#Va241o-12)and

VMAX 15

Amp

Speed Control

with BEC

(#VMC-12OB15VC).

lf

you

have

purchased a pre-assembled

VMAX

power

mod-

ule assembly consisting

of firewall, motor and speed control

you

may skip

124

through

12E.

12A-VMAX Brushless

111818VM

(

factory ref

)recommended

ae

rFr

a

12B. A special

pre-drilled

firewall

is

included for mounting the recom-

mended VMAX motor. A blank

firewall

is

also

provided

for other motor instal-

lations

12E- Mount

the

Speed Control to the

back of the firewall so

that the metal

heat sink faces the ventilation

hole

(forward).

Secure in

place

with

a

tie-

wrap

12H- Mount the

pre-assembled

fuse

holder/switch to the fuselage front

former

12G- Securely mount the

aluminum

motor backing

plate

to the

firewall

using 4 , bolt & washer sets

provided.

Tighten the bolts securely and apply

thread locker such as

Pacer Z-42

(Blue)

a

I

-

a

a

12F- Assembled Power

Module

com-

plete

with firewall, motor & speed con-

trol

Motor #VMM

#

Va 2410-12

12D- Route

the

motor wire to

the

back

of the

firewall

as shown

12G- Fuselage

front

former

12J- Install four 3x50

[mm]

bolt

sets

(supplied).

Bolt-washer-former-wash-

er-nut

(front).

Tighten the nuts secure-

ly & apply thread locker

B

il

121- Test fit a 20 Amp automotive

spade fuse into the fuse holder/switch
and then

REMOVE THE FUSE

12K- Thread

four 3 mm nuts onto the

bolts as shown. The nuts should be all
be evenly spaced at .875 in.

(22

mm)

from

the firewall

12L- Place four 3 mm washers on the

bolts & then

position

the assembled

power

module. Secure in

place

with

four more 3 mm washers & nuts.

Tighten snugly

Fuse

holder/Switch.

The

fuse is

be inserted

only when

flying

or

testing.

ALWAYS

REMOVE

THE

FUSE

WHEN

NOT FLYING

OR

TESTING

WARN]NG

WRONG

CONNECT]ONS

W]LL DESTROY

COMPONENTS.

Brushless

motor VMAX

#VMM

111818VM(

factory ref

# Va 2410-121

12M-

Typical

wiring

for electric

power

system.

LIPO battery

WARNlNG

BEFORE

PLUGG]NG

TH]S

CONNECTOR

INTO

THROT-

TLE

CHANNEL

OF RECEIV-

ER ENSURE

PLUG

IS

COR.

RECTLY

POSIT]ONED

TO

Electronic

Speed

Controler

(ESC)VMAX

#VMC-120815VC (factory

ref

# VMX 18)

t

MArcH

YouR

R

ER

&

I

sERVo wl

I

Connect

to receiver

INSTALL

THE

COWL AND

PROPELLER

Install

and align

the

cowl using

the four

cowl mounting

screws

provided.

The

screws

pass

through

the sides

of the

cowl

and into

the tabs

on the front

of the fuselage.

Step 13.1

Cut

card stock

strips

about 112

x

5"

(12x120

mm).

Use low

tack masking

tape

to

position

the

strips

as

shown in

138.&

13C

Note

that

the tape is

applied

towards

the rear

of the

strips

and

that

the front

of the

strips

overlap

the cowl

mounting

tabs

at the front

of the fuselage.

Step

13,4

Mark

the mounting

hole

locations

with

a DOT

per

l3C.Without

moving

the

cowl, carefully

hold

each

strip flat

against

the

cowl and

working

around the

cowl

one

strip at

a time, drill

a 5164 in.

(2

mm)

hole

through

the dot,

the cowl

and

the mounting

tab.

See

1 3E.

Step

13.5 Hold

the

cowl in

place

using

four

2x10

[mm]

screws.

Carefully

remove

the

strips

and

all masking

tape.

Step 13.6

With

the

BATTERY

&

FUSE

REMOVED

securely

install the

propeller.

Double

check

your

work

and

ensure

that

the

propeller

is

securely

attached

and

will not

come

off.

13A-

Pre-painted

cowl

supplied

Step 13.2

Mark

each strip with

a

dot

in

the center

of

each

cowl mounting

tab

as shown in 13C.

Step

13.3

Slide the

cowl into

place

to completely

cover the

mounting

tabs

on the fuselage

&

such that

the strips

are

outboard

of

the

cowl as shown

in 13D.

Align

the cowl

so

that

the motor

shaft

is centered.

Secure

the

cowl in

position

with low

tack masking

tape.

13C-

Mark

the strip

with

a dot

at the

center

of each

cowl mounting

location

138-

Gard

stock

strips

overlying

the

cowl mounting

tabs

on the left

and

right

side

of the fuselage

13D-

Position

the

cowl

over

the

mounting

tabs.

Note

the strips

are

outboard.

Align

& center

with

respect

to

the motor

shaft

9

f1l4

in..(8mm)

fuselage

13E-

Do not

move

the

cowl.

Drill

through

the dot,

the cowl

and all

four

mounting

positions

13F-

Secure

the

cowl

into

place

with

four

2x10

[mm]

screws

13G-

With

the

securely

peller

install the

pro-

Lightweight

laser

cut

horns are

used

on

this

model

(see

14A).

Remove

cov-

ering

from

the

mounting

locations.

Attach

firmly

with

30

minute

Epoxy as

shown

in 148,

14C

and

14D.

ELEVATOR

AND

RI.JDDER

CONTROL

HORNS

a..

i

FITTING

THE

144-

Typical control

horn

assembly

*o

15C-

Note the

orientation

and

posi-

tions

of the

two

servos

in the

servo

tray

\*.,

i:

14D-

Rudder

control

horn location

I

15A-

Servo tray

NOSE

-'='.-Gl\

148-

Typical

control

horn after

instal-

lation

15D- Connect

the elevator

and

control

rods

to the

servo

arms

"*f{"

14C-

Elevator

control

horn location

:":

INSTALLING

THE SERVOS

Install

the

rubber

servo

grommets

& brass

ferrules

supplied

with

your

radio

equipment.

The

two servos

that control

the elevator

and

rudder are

to

be

installed

in the seryo

tray

mounted

in the fuselage.

Remove

the

servo

tray

from

the

fuselage,

mounting

the

servos

to

the seryo

tray as

shown

in 15Aand

'15B.

And then

install

the servo

tray

back

into

the fuselage

as

shown

in

15C. Hook

up

the

control

rods

as shown

in

15D.

€

NOSE

elevator

rodr

L.-

; t

158-

Note the

orientation

and

posi-

tions of

the

elevator

and

rudder con-

trol

rods

10

F

*

t

rud

---rludder

rod

CONNECTING

THE PUSHRODS

TO

THE

RUDDER

AND ELEVATOR

SERVOS

Consult illustration 164&

carefully connect

the control rods

to the

servos using

the

clevises

as shown.

CONNECTING

THE

Connect the

elevator servo to

the receiver

and turn

on

your

transmitter

& then

vour

receiver.

Center the transmitter

16A-

Center the

servo control

surface

and

then connect the

control rods

to

the servos

using the clevises

as

shown

PUSHROD

TO THE

ELEVATOR

stick and trim. Adjust

the seryo

arm and clevises

to center

(not

up, not

down) the

elevator as shown in 17A

and 17B.

&

\:

'+.

control horn

shown in

CONNECTING

THE PUSHROD

TO

THE RUDDER

Connect the

rudder

seryo to the receiver

and turn

on

your

transmitter

&

then

your

receiver.

Center

the

trans-

mitter

stick

and trim. Adjust

the

servo

arm and clevises

to center

(not

left,

not right)

secure the rudder

as shown

in 18A.

17B- Hold

the elevator

at neutral

(not

up, not

down). Rotate

the clevis

to adjust

the

overall length.

Then use the

clevis screw

to attach the

clevis

to the control

horn. The

clevis

screw requires

a 5164 in.

(2mm)

hole. Secure

the

screw with

thread lock

ADJUST

CONTROL

18A-Hold

the rudder

at neutral

(not

left,

not right).

Rotate

the clevis

to adjust

the overall

length.

Then

use the

clevis

screw to

attach the

clevis to the

control

horn. The

clevis

screw requires

a 5164 in.

(2mm)

hole.

Secure the

screw

with

thread

lock

SURFACE

THROW

LIMITS

-

From

the

control horn

end, move

the

control rod/clevis

fur-

ther

out on the horn

(away

from

the

control

surface).

Always

confirm

that the

clevis is firmly

attached

after mak-

ing

any

adjustment.

Adjust

the

deflection

of the

control

surfaces to

match

the

specifications

on

page

12. You

can

reduce

the amount

of

throw by

doing

either or both

of the

following.

-

From

the

servo end, move

the

clevis

to a hole in

the

servo

arm

that is

closer to the

servo output

shaft.

11

FINAL RC

SET-UP

Before

starting

the

final

set-up

of the model, switch

on the

radio

and ensure

that all trims are

in their

neutral

positions.

Check

that the ailerons, elevator

and

rudder are centered.

lf

any adjustments

are

needed,

do these

by uncoupling

the relevant

clevis

and

turning it clockwise

to shoften the linkage or

counter - clockwise

to

lengthen it.

Only

when each

control surface

has been centered mechanically

in

this

way

should

you

begin adjusting

the surface

movement

(or

throw)

Now

confirm

that the control surfaces

are moving

in

the correct direction.

Use the servo

reversing

switches on

your

transmitter to

reverse the

direc-

tion of a

servo if necessary.

The most

popular

transmitter

mode

(with

the throttle on

the left, with

ailerons and elevator on

the right)

is

shown

here.

We have

assumed

throughout most of these instructions that

your

J3 Piper cub

is

being

powered

by an

electric motor and

Electronic Speed Control

with BEC.

Stage

21

applies only

if

you

are using

glow power.

Step 21.1

Consult

your

radio manual for instructions about

hooking

up

your

receiver

battery,

receiver

and switch

harness.

Step

21.2 Wrap the

battery

pack

securely in

foam

suitable

for

RC equipment and wrap the

foam insulated

pack

in

a

plastic

bag or cling wrap. Position the battery

pack

under the fuel tank

or nearb

INSTALLING

THE RECEIVER

Step

22.1

Consult

your

radio manual'for instructions

about

hooking up

your

receiver.

Step

22.2Plan where

you

are

going

to

put

the receiver with

consideration

for routing the

antenna safely.

Step

22.3 Wrap the receiver securely

in

foam suitable

for

RC

equipment and

wrap the

foam insulated receiver in a

12

INSTALLING THE RECEIVER BATTERY(G|ow Engine

Only)

Step

21.3 Thread the battery

pack

connector back

through

from beneath the

fuel tank to the radio compartment by

passing

the battery connector

through an opening beside

or beneath

the fuel tank.

Step 21.4 Connect the battery

connector to

your

radio

sys-

tem according to the radio

manual.

PLEASE NOTE THAT A FUEL TANK IS NOT

SUPPLIED

WITH THIS MODEL.

plastic

bag or cling wrap.

Step

22.4

Generally

in the absence of specific

instructions

from

the

radio manufacturer, it is recommended that the

receiver

should be

placed

where

it is

least

likely to have

impact during a crash.

Keep

the battery

pack

and other

heavy loose items ahead of

the receiver.

CONFIRM

RADIO

Carefully

review

how

your

Electronic

Speed

Control

(ESC)

works.

Most ESC's

will

not

power

up the motor

until the

throttle

has

been reduced

to zero.

Avoid

the

prop

in case

the motor

suddenly

stafts to

turn.

Step

23.1

Consult

your

radio

manual

for instructions

about

testing

and operating

your

radio

system.

Step 23.2

Pay

pafticular

attention to

charging

your

batter-

OPERATION

ies

and range

testing

your

system

before

and after

each

flight.

Step

23.3

Check

that all

controls

are working

correcfly

before

and after

each flight.

FOR

ELECTRIC

POWER,

YOU

WILL NEED

TO INSTALL

THE

FUSE

AND YOUR

BATTERY

TO

TEST

YOUR

ESC

& MOTOR

OPERATION

BALANCING

THE

AIRCRAFT

Step 24.1

The

CG for

your

J3 PIPER

CUB is located

at 2"

to

2-118"

(50

-

55 mm)

back from

the leading

edge

of the

wing

when

the

wing has

been

attached

to

the fuselage

as

per

illustration

25A.

Step 24.2

For

the initial

flight,

the

CG

should

be located

at

2"

(50mm)

back from

the leading

edge

of the wing

when

the

wing

has

been

attached

to the

fuselage.

Step 24.3The

CG

is

measured

with

the motor,

battery

and

all

other

components

installed.

Step

24.4

Set up

the

CG as it will

be when

you

fly

it.

Step

24.5lt

is very

important

to have

the CG

correct.

Flying

your

model

with

the

CG too far

back will

likely lead

to loss

Step 25.1

Once

you

have

confirmed

that the

CG is

correct,

you

should

do

a thorough review

of the

entire

model

before

your

first

flight.

Check everything

twice!

Every

hook

up,

every coupling,

everything!

Do

it twice!!

Step 25.2

Before

your

first flight,

have

an

experienced

flyer

review

your

work.

Do not

fly

your

model

until

it has

been

checked

out

by a third

party

who

knows

how

to fly

and how

to

set up

a model

aircraft. Do

not

fly

alone.

Seek

experi-

,

,

enced

help.

Step 25.3

Once

you

have

completed

your

first

flight,

get

in the

habit

of

checking

your

model

over

before

and

after each

flight!

Low

rate

ELEVATOR

AILERON

RUDDER

of control

and a crash.

lf

you

discover

that

after

you

have

assembled

your

model

and installed

your

radio,

motor

and

battery

that

the

CG of

your

model is

incorrect

you

must

bring

the

CG to

the

correct location

by

doing the

following

BEFORE

FLYING

:

-

Move

the

battery

pack

fore

or aft

-

Do

not

add weight

to

correct the

CG.

Move

components

& especially

your

battery

pack

rather

than

add weight.

Only

add weight

as a measure

of

last

resort.

1/6

"

(4mm)

up

116

"

(4mm)

down

116"

(4

mm)

up

116"

(4

mm)

down

1/3

"

(8

mm)

right

1/3

"

(8

mm)

left

CONFIRM

MECHANICAL

INTEGRITY

50 - 55mm

| |

2-2.118in

I

l#---------------l

Don't

fly if

you

find

something

that is not

rightl

25A-

CG location

CONTROL

SURFACE THROW

SPECIFICATIONS:

The throws

are measured

at the

widest

part

of the control

also

use ATV's if

you

radio has

them but

the mechanical

surface. Adjust

the

position

of the

pushrods

at

the control

linkages

should still be

set so that

the ATV'S

are near 100%

and/or

servo horns

to control

the amount

of throw.

you

may for

best servo

resolution.

High rate
1i4"

(6

mm)

up

1/4"

(6

mm)

down

1/4"

(6

mm)

up

1/4"

(6

mm)

down

215"

(10

mm)

right

215"

(10

mm)

left

1/6', - 1/4',

1/6"

-

1/4"

4mm

-

6mm

Elevator

1/6', -

1/4',

4mm

-

6mm

Aileron

1/3',-2/5"

8mm

-

1Omm

1/3',-2/5"

8mm

-

lOmm

Rudder

INSTALLING

THE WING STRUTS

Wing struts are

very important.

They must be correctly

installed and remain

securely attached

at all times during

flight.

The wing will

fail if flown without

the struts.

To

install the wing struts

you

need the struts

themselves

&

the four

2x10

[mm]

screws

supplied. Review

the

general

configuration

of the struts

shown

in 26G.

Step

26.1 Locate the strut

attachment

point

on the under-

side of each

wing near

the

aileron

servo.

The locations

have been

pre-marked

at

the factory. See

26A & 268

Step

26.2 Locate the strut attachment

points

on

the fuse-

lage near the

main

gear.

The locations

have been

pre-

marked at

the factory. See

26C and 26D

Step

26.3 Mount the

wing to fuselage.

Step 26.4

Attach the struts

to the left and

right

wing

so

that

the thicker edge

of the strut

faces forward. See

26E

Step

26.5 Attach the

struts to the

fuselage. See

26F

Right

wing strut

26C- Strut attachment

point

on the left

side of the

fuselage

on the

26A- Strut

attachment

point

underside

of the right

wing

on the

wing

26E- Strut

panel

268- Strut attachement

point

underside of

the left

wing

26D-

panel

Strut

right

attached

the

left wing

Left

wing

strut

attached

to the

a

&

right

struts

attached

to

26G-

Left & right struts attached to

model

14

INSTALLING

THE

DUMMY

PILOT

This

model

comes

with

a dummy

pilot.

To

remove

and/or

install

the

dummy

pilot

please

review

the

illustrations

and

follow

these

steps.

Step 27.1

To remove

the

dummy

pilot

unscrew

the 2

screws

(see picture

27C)

Step

27.2 The

dummy

pilot

is installed

using

two 2x10

[mm]

sheet

metal

screws.

See 27C

and

27D.

27A-

Dummy

pilot

27B'

Pre-installed

dummy

pilot

mounting

rail

the dummy

pilot

onto

{-

=i

27D

-

Position

the dummy

pilot

onto

the rails

and

secure

into

place

with

two

2x10

[mm]

screws.

BATTERY

LOGATION

The

battery

location

is behind

the firewall.

To install

the

bat-

tery,

you

must

remove

the

battery

hatch

first then

connect

the

battery

to

your

ESC.

Battery

packs

vary

widely

in

size,

shape

and

type.

We rec-

ommend

using

a Lithium

Polymer

(LIPO)

battery.

The

battery

can

be moved

fore

or aft

to adjust

the

CG

to

the correct

location.

See 2BB

Once

the

CG is

correct,

the

battery

should

be

secured

in

position

with Velcro (supplied)

or lightweight

foam

so that

the

battery

cannot

move.

DO

NOT

FLY

WITH

A

LOOSE

BATTERY.

tf

the battery

moves

it will

shift

the

CG location

and/or

possibly

unplug

itself

causing

loss

of control.

27E- Dummy

pilot

after installation

Fuse

288- Battery

compartment

as

seen

from bottom

of

fuse-

lage

Once

the

CG

is correct,

the battery should

be

secured

in

position

with Velcro

(supplied)

or

lightweight

foam so

that

the battery

cannot

move.

After installing

your

battery

and

securing

it into

place,

re-

install

the battery

hatch as

shown

in 2BC.

When

you

are

ready

to

power

up

your

motor,

MAKE SURE

YOUR

TRANSMITTER

IS

TURNED

ON

WITH

THE

THROTTLE

REDUCED

TO

ZERO

& STAY CLEAR

OF

THE

PROP BEFORE

INSTALLING

THE FUSE.

After

installing the

fuse,

STAY

CLEAR

OF

THE

PROP

,tF.

28C-

Battery installed.

with security

velcro

installed.

With

Fuse in

place

Battery

Notes

FOR SUPPORT SERVICES,

PARTS &

INFORMATION

ABOUT

THESE

&

OTHER

VMAR

PRODUCTS

PLEASE

VISIT US AT...

www.richmondrc.com

VMAR, POLYCOTE

and VMAX are

Tndema*s of VMAR

Manufactuing lnc. and appointed

VMAR agents

wofldwide.

Copyright VMAR

Manufactudng

lnc

-

#VMA-C21

oXlB

'

2006051

0

28D-

Battery

hatch