Vmar Stinger Assembly And Operation Manual

1

Model airplanes, model engines, model engine fuel, propellers
and related accessories, tools and equipment can be haz­ardous 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 safe­guard and protect your eyes and fingers and the eyes and fin­gers 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. In no event
will the Manufacturer, Distributor, Retailer and/or other suppli­ers of this product have any obligation arising from contract or
tort, or for loss of revenue or profit, or for indirect, special, inci­dental, consequential or other damages arising from the use of
this product. In purchasing and/or using this product, the user
accepts all responsibility for its use and accepts all liability
associated with such use.

A Remote Control Model Aircraft is not a toy. It is a flying
model that functions much like a full size airplane. If you
do not assemble and operate this product properly you
can cause injury to yourself and others and damage prop­erty. 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.
Check all components before and after each flight.

Don't fly until it's right!

The Graphics and Detailing are inside the POLYCOTE ECS!

Proceeding with assembly and use of this product indicates

Agreement With & Acceptance of the following Liability Disclaimer.

CAUTION

ASSEMBLY & OPERATIONS MANUAL

Please review this manual thoroughly before assembling or operating this model.

2

WING ASSEMBLY - JOINING THE WING HALVES

1.1 Locate the wing joiner (also called Dihedral brace).

Using the ruler, determine the center of the wing
joiner and mark it with a pencil as illustrated in 1A.
Also mark a center line on each of the dowel guides.

1.2 Trial fit the wing joiner into the wing panels. It should
insert smoothly up to the center line as illustrated in

1B. Now slide the other wing panel onto the wing
joiner until the wing panels meet. If 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 1A.

1A- Preparation of wing joiner and dowel guides. 1B- Trial fit the wing joiner and dowel guides

1.3 Insert the dowel guides into one of the wing panels

all the way to the center lines. Apply CA glue to
secure the dowels into their places as illustrated in
1B and 1C. Do not apply CA glue to the wing joiner.

1.4 Apply plenty of 30 minute epoxy to one end of the
wing joiner, using a stir stick or epoxy brush.
Carefully insert the joiner into the first wing panel as
illustrated in 1D, 1E and 1F, then wipe off the excess

epoxy that squeezes out of the joint with a cloth or
tissue. Repeat this process several times to ensure
that the wing joiner and cavity are well coated in
epoxy. When the wing joiner & cavity are well coat­ed with 30 minute epoxy, insert 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)

1C- Apply CA glue to secure dowels into their places 1D- Apply plenty of epoxy glue to the wing joiner.

wing joiner

dowel guides

UP

Center line

UP

UP

UP

Part

s needed

- Roll of wing joiner tape

- Right and left wing panels

- Wing joiner (also called dihedral brace)

- Two short dowel guides

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.

STAGE 1

3

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.

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 1.4, 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.

2.3 Use low tack masking tape to hold the two panels
together until the glue cures.

1E- Carefully insert the joiner all the way to the center line

3.1 Once the epoxy has cured completely (allow sever-

al hours at least), the tape can be carefully removed
from the wing panels. Peel the tape back on itself…
do not pull upright away from the wing. To seal and
finish the joint in the wings, a roll of wing joiner tape
has been supplied.Starting on the bottom side of the

wing, stick the tape centrally over the joint ensuring
that it is pressed down firmly as you work around the
wing. Wrap the tape all the way around the wing joint
in one piece, starting and finishing at the servo
mounting cavity in the bottom of the wing.

Center line pointing up

1F - Wipe off the excess epoxy then allow to cure.

3C-Continue over to the bottom of the

wing & along to the servo cavity
and trim off the excess tape.

3B.Continue applying the tape over

the top of the wing, pressing
down firmly as you go.

3A.Apply tape over the joint starting

here on the bottom at the servo
cavity.

UP

UP

WING ASSEMBLY - JOINING THE WING HALVES (Cont.)

STAGE 1

WING ASSEMBLY - JOINING THE WING HALVES (Cont.)

STAGE 3

2C- Use low tack masking tape to

hold tightly together.

2B- Align the two wing panels and

slowly close the gap until the
wing root ends are firmly in
contact with each other

2A- Apply plenty of 30 minute epoxy

glue to all surfaces.

4

Aileron servo cavity

4B- Aileron servo location

4A- Prepare the servos by fitting the rubber grommets &

ferrules supplied with your radio

To install the aileron servo into the wing you will need the fol­lowing items :

- Servo

- Servos mounting screws and grommets as supplied with
servos.

- Servo control arms as supplied with the servos.

- Two aileron control rod assemblies supplied with the kit.
The assemblies consist of a metal rod with a plastic clevis
screwed onto both ends.

- Low tack masking tape.

- 2 aileron control horn assemblies

4.1 Turn the wing upside down.

4.2 Trial fit the aileron servo into the servo mounting cav-

ity. You may have to modify the cavity slightly to pro­vide clearance for the servo and servo wires.

4.3 Use a hobby knife to modify the cavity as required.

Most servos have their output shaft closer to one end
than the other. We recommend locating the servo so
that the output shaft is as close to the front of the wing
as possible.

4.4 Screw the servo into place with the screws and grom-

mets supplied. It is important to install the grommets
and screws correctly. See the manual that came with
your radio for instructions about your particular servo
grommets.

4.5 Fasten the screws down according to the servo man-

ufacturers recommended tightness.

5A. Aileron control rod assembly 5B. Aileron torque rod with control

horn

5C- Aileron servo and control rods

installed.

3/4” (20 mm)

Aileron control horn

Aileron torque rod

5.1 Consult your radio instruction manual and center the

aileron servo by plugging it into the aileron channel
in the receiver. Turn on the transmitter and then the
receiver. Center the aileron trim lever on the trans­mitter. Remove the servo arm mounting screw and
the servo arm.

5.2 Mount the servo arm back on the servo so that the

arm is parallel with the back edge of the wing. Screw
the arm into place with the servo arm mounting
screw supplied with the servo.

5.3 Locate the two aileron control rods in the hardware

bag (see 5A). 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.

5.4 Tape 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.

5.5 Ensure that the aileron control horns are screwed
onto the threaded aileron torque rods that protrude
from the wing and that both control horns are in
approximately the same place on their respective
torque rods (see 5B).

Aileron

INSTALLING THE AILERON SERVO INTO THE WING.

STAGE 4

INSTALLING THE AILERON CONTROL SYSTEM

STAGE 5

5

5.6 Connect the aileron servo control rods to the aileron
control horns as shown in 5C.

5.7 Carefully remove the masking tape holding the
ailerons.

5.8 Turn on your radio and activate the ailerons, using
the aileron stick and ensure that a smooth full
motion can be achieved.

5.9 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 from the back).

5.10 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).

To install the stabilizers into the fuselage you will need.

- Fuselage

- Vertical stabilizer with pre-installed rudder

- Horizontal stabilizer with pre-installed elevator

6A. The fuselage slots for the vertical & horizontal

stabilizers

6B. Horizontal stabilizer with pre-installed elevator 6C. Vertical stabilizer with pre-installed rudder

Vertical slot

Horizontal slot

7.1 Check the fit of the horizontal stabilizer in its slot. Make sure

the tail is square and centered to the fuselage by taking meas­urements as shown in pictures 7A, 7B and 7C.

Do not glue anything yet.

90

o

7A. Trial fit the horizontal stabilizer in

its slot

7B. Alignment of horizontal stabilizer top view. 7C. Alignment back view

FITTING THE HORIZONT ALAND VERTICALST ABILIZERS

STAGE 6

ALIGNMENT OF HORIZONTAL STABILIZER

STAGE 7

6

8.1 With the horizontal stabilizer­aligned correctly, mark the
shape of the fuselage on the top
& bottom of the horizontal stabi­lizer using a water soluble non­permanent felt-tip pen as shown
here

8A. Mark the top of the horizontal

stabilizer...

8B. ...and the bottom

9.1 Now remove the horizontal sta-

bilizer & using a sharp knife & a
ruler CAREFULLY cut 1/8" (3
mm) inside the marked lines &
remove the covering on the top
& bottom of the horizontal stabi­lizer as illustrated. Make sure
you only cut the film & not the
wood, otherwise the horizontal
stabilizer will be severely weak­ened & fail.

9A. Marked lines on horizontal stab

9B. Cutting inside the lines

9C. Remove the covering from top

surface.

9D- Exactly the same underneath 9E- Clean off the pen lines.

10A. Apply plenty of epoxy

10.1 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 10A &
10B).

10.2 Insert the horizontal stabilizer in its slot in the fuselage and re-check
the alignment as in Stage 7 (see 10C).

10.3 Excess epoxy should be cleaned off with a rag or tissue before it
cures (see 10D).

INSTALLING THE HORIZONTAL STABILIZER

STAGE 8

INSTALLING THE HORIZONTAL STABILIZER (Cont.)

STAGE 9

THE HORIZONTAL STABILIZER (Cont.)

STAGE 10

10B. Apply plenty of epoxy 10C.Slide the horizontal stabilizer in

place

10D. Wipe off excess epoxy

7

11.1 Check the fit of the vertical stabilizer in its slot. Make
sure that it is square to the horizontal stabilizer and
fuselage (see 11A)

11.2 Mark the shape of the fuselage on the left & right
sides of the vertical stabilizer using a felt-tip pen (11B)

11.3 Now remove the vertical stabilizer , using a sharp knife
& ruler, CAREFULLY cut just 1/8" (3mm) inside the
marked lines (see 11C) and remove the covering on
both sides of the fin (see 11D), just as you did with the
horizontal stabilizer, making sure you only press hard
enough to cut the covering, not the vertical stabilizer.

Do not cut the wood.

11A- Trial fit the vertical stabilizer into fuselage slot.

12.1 Now apply sufficient epoxy to both sides & the bot-

tom of the vertical stabilizer as illustrated in 12A.
Use 30 minute epoxy to ensure a strong bond and
give yourself plenty of working time.

12.2 Insert the vertical stabilizer in its slot in the fuselage
and re-check the alignment. Excess adhesive
should be cleaned off with a rag or tissue before it
cures.

FITTING THE VERTICAL STABILIZER

STAGE 11

11B.Mark both sides of the vertical

stabilizer

11C.Carefully cut through the

covering

11D.Remove covering from both

sides

FITTING THE VERTICAL STABILIZER (Cont.)

STAGE 12

INSTALLING THE LANDING GEAR

STAGE 13

12A. Apply plenty of epoxy 12B.Slide the stab into place

& remove excess epoxy

12C. 90 degree angle between the

horizontal and vertical stabs.

90

o

The STINGER has a tricycle gear con­figuration (trike gear) using a steerable
nose wheel and main landing gear. Trike
gear is recommended in trainers and
makes it much easier to steer your
model on the ground and to control it
during take off

8

14B.Installation of collars and wheel

to the pre-bent main landing gear
wire.

14C.Insert the main landing gear

wires into the fuselage

14D. Use 4 sheet metal screws and 2

straps to mount the main landing
gears onto the fuselage

Identify the main landing gear components shown below

- 2 pre-bent main landing gear wires

- 2 main wheels 2-7/16” ( 60mm)

- 4 sheet metal screws and 2 straps

- 4 wheel collars

14A. Main landing gear components

14.1 Place one of the wheel collars on the pre-bent main

landing gear wires. Tighten the collar set screw.

14.2 Place one of the main wheels on the pre-bent main
landing gear wires

14.3 Install the second wheel collar on to the pre-bent
main landing gear wires. Leave enough gap to allow
the wheel to rotate freely (see 14B). Tighten the col­lar set screw.

14.4 Turn over the fuselage, identify the main gear slot.

14.5 Insert the wires into the pre-drilled holes at the ends

of the slot.

14.6 Rotate the wires back and forth and wiggle the wires

down into the holes until the landing gear is just
slightly away from contacting the fuselage. See the
illustration 14C

14.7 Rotate the two main landing gear assemblies so that
they line up with the slot in the fuselage. Press the
wires down firmly into the slot. Tapping with a han­dle of a screwdriver will help seat the gear wires into
the slot.

14.8 Use 4 metal screws and 2 straps to secure the main
landing gear assemblies into the slot. See illustration
14D

Pre-bent main landing gear wires

Main wheel

Wheel collars

2 Landing gear straps

Metal screws

Main landing

gear wires

Wheel collars

FITTING THE MAIN LANDING GEAR

STAGE 14

Main landing

slot

INSTALLING THE NOSE GEAR

STAGE 15

Identify the nose gear components per illustration 15A:

- 1 pre-bent nose gear wire

- 1 steering arm

- 2 wheel collars

- 1 wheel 2-7/16” ( 60mm)

15A. Nose gear components

Pre-bent nose

gear wire

Wheel

Collars

Steering arm

15B. Follow the instruction steps 14.1, 14.2, 14.3 to install

the wheel and collars to the pre-bent wire

9

16B. Use 4" (100 mm) for fuel line and

2" (50mm) for pressure line

16C.Illustration of fuel line position-

ing inside cutaway of the tank

16D.Fuel tank installed into the

fuselage

15C.Insert the end of the pre-installed Z-bend wire into

the hole in the steering arm

15D.Place the steering arm into the slot in the nylon nose

gear bearing

15E.Insert the nose gear into the bearing, passing

through the steering arm. Secure the steering arm to
the nose gear by tightening the set screw onto the
flat spot on the nose gear wire.

15F. Typical nose gear installation when complete.

FITTING THE FUEL TANK

STAGE 16

To assemble the fuel tank you will need the following
items:

- The fuel tank and fuel stopper assembly (supplied)

- The clunk (supplied)

- About 7” (20 cm) of medium ID silicone fuel line (DUB
197 or DUB-222 or similar)

- Cross head Phillips screw driver.

fuel line

pressure line

fuel line

pressure line

4” (100mm) for fuel line

16A. Fuel tank & stopper assembly.

2” (50mm) for pressure line

After tank assembly, protect tubes from contamination dur­ing installation. Apply silicone on both sides of black foam
donut like gasket & around neck. Install tank into the fuse­lage with tubes facing up.

Press tank with sealant bead firmly against back of firewall
& secure while sealant cures. Seal around neck from front
to prevent oil seepage into fuselage.. Support & surround
tank in compartment with sponge foam.

10

Engines vary quite a bit in sizes, styles and brands but most
have mounting lugs, a carburetor with a throttle (speed) con­trol arm, a prop washer, a prop nut and a muffler.
The procedure we describe here assumes that you are
mounting a 2-stroke engine that has a side exhaust on the
right (when viewed from behind looking forward) and a throt­tle control arm on the right.

17A. VMAX 46PRO 2 cycle engine recommended

17C.Remove the muffler, position the engine on the

engine mount and confirm that the fuel tank metal
tubes clear the back of the engine. Trial fit the engine
temporarily into place. Tighten the screws only
enough to tack the engine into place

17B.Use a 4mm socket ball wrench or Allen Key to

remove the 4 black machine screws that work with
the clamping plates on the metal engine mount that
has been pre-installed into your STINGER

Connect to the fuel line

fuel line

INSTALL ENGINE

STAGE 17

CONNECTING THE THROTTLE CONTROL ROD TO THE ENGINE.

STAGE 18

18B.Throttle control rod connected to the engine throttle arm and to the

servo arm

18A Clevis attached to engine

throttle arm

CONNECTING THE FUEL & PRESSURE LINES

STAGE 19

19A. Fuel line connected to the carbu-

retor and pressure line connect­ed to the muffler.

19.1 Install the muffler then connect the fuel tubing from the tank metal pres-

sure lines to the muffler

19.2 Connect the fuel tubing from the tank metal fuel line to the carburetor

19.3 Double check that you have the metal fuel line from the tank connect-

ed to the carburetor and that the metal pressure line from the tank to
the muffler.

11

22A. Universal

servo tray

20.1 Consult your engine manual and select a suitable propeller.

20.2 Install the thrust washer, the spinner backing plate, the propeller, the

prop washer, and the prop nut. Ensure that they are all firmly attached.

20.3 Trial fit the spinner cone and spinner cone retaining screws. If neces-

sary enlarge the cutouts in the spinner cone to allow adequate clear­ance for the propeller. The spinner should not touch the edges of the
propeller.

20.4 Double check that the spinner cone retaining screws are firmly

attached.

20A.The spinner and propeller

attached to the engine.

21.1 The elevator control horn is

installed through the elevator
and protrudes from the bottom
of the elevator as shown in 21B
and 21C. Pierce the covering
over the pre-drilled hole and
install the control horns as
shown.

21A- Control horn assembly 21B. Typical control horn mounted to

the surface control

INSTALL THE PROPELLER AND THE SPINNER

STAGE 20

FITTING ELEVATOR AND RUDDER CONTROL HORN

STAGE 21

21C. Elevator control horn location 21D. Rudder control horn location

Elevator control horn
location

Rudder control
horn location

INSTALLING THE SERVOS

STAGE 22

22.1 Install the rubber servo grommets & brass ferrules supplied

with your radio equipment. The three servos that control the
elevator, rudder and throttle are to be installed in the servo
tray mounted in the fuselage. Remove the servo tray from
the fuselage, mounting the servos to the servo tray as
shown.

22B.Note the orientation and positions of the three

servos in the servo tray

22C.Throttle, rudder and elevator servos

connected to their push rods as referenced
left to right.

Throttle

servo

Elevator

servo

Rudder

servo

NOSE

TAIL

12

Consult illustrations 22C &
23A-C showing how the
throttle, rudder and elevator
servos are positioned and
connected to the pushrods.

CONNECTING THE PUSHRODS TO THE THROTTLE,
RUDDER AND ELEVATOR SERVOS

STAGE 23

23B. Pre-installed elevator,

throttle and rudder pushrod

NOSE

TAIL

23B.Center the servos, control surfaces & throttle

(carb) then connect the control rods to the servos.

Elevator pushrod

Elevator pushrodThrottle pushrod

Nose gear pushrod

Rudder pushrod

NOSE

TAIL

Connect the elevator servo to the receiver and turn on your
transmitter. Confirm that the neutral positions of the

elevator servo are sustained as per illustration 23C

24A.Elevator control horn shown in

position

24B.Loosen the set screw to connect the elevator pushrod to the elevator con-

trol horn, align the elevator surface so that it is level with the plane of the
horizontal stabilizer, then tighten set screw securely.

CONNECTING THE PUSHRODS TO THE ELEVATOR

STAGE 24

CONNECTING THE PUSHRODS TO THE RUDDER

STAGE 25

CONNECTING THE THROTTLE CONTROL

STAGE 26

Connect the rudder servo to the receiver & turn on
your transmitter. Confirm that the neutral position of
rudder servo is sustained as per illustration 23C

25A.The rudder pushrod is connected to the rudder

control horn

With the throttle control arm clevis connected to the engine throttle arm,
move the throttle arm to roughly half throttle. Look into the throat of the
engine carburetor as you rotate the throttle arm and select a position
where the throttle opening is about haft what it is when fully open.

26A. Throttle control rod connected to the engine throttle arm and to the

servo arm

Connected to the engine throttle arm

engine throttle arm

engine throttle arm

26B- Throttle control rod con­nected to the engine throttle arm

13

Adjust the deflection of the control surfaces to match the
specifications on page 15. You can reduce the amount of
throw by doing either or both of the following:

- From the servo end, move the clevis or EZ connector to a

hole in the servo arm that is closer to the servo output shaft.

- From the control horn end, move the horn out further on
the threaded bolts. Always confirm that the horn is still
thoroughly engaged with the threaded bolt after you have
adjusted it.

ADJUST CONTROL SURFACE THROW LIMITS

STAGE 27

FINAL RC SET-UP

STAGE 28

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. If any adjustments are
needed, do these by uncoupling the relevant clevis
and turning it clockwise to shorten 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 direc­tion 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.

29.1 Consult your radio manual for instructions about
hooking up your receiver battery, receiver and
switch harness.

29.2 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 nearby.

29.3 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.

29.4 Connect the battery connector to your radio system
according to the radio manual.

INSTALLING THE RECEIVER BATTERY

STAGE 29

14

INSTALLING THE RECEIVER

STAGE 30

CONFIRM RADIO OPERATION

STAGE 31

BALANCING THE AIRCRAFT

STAGE 32

CONFIRM MECHANICAL INTEGRITY

STAGE 33

30.1 Consult your radio manual for instructions about

hooking up your receiver.

30.2 Plan where you are going to put the receiver with
consideration for routing the antenna safely.

30.3 Wrap the receiver securely in foam suitable for RC
equipment and wrap the foam insulated receiver in a
plastic bag or cling wrap.

30.4 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.

31.1 Consult your radio manual for instructions about
testing and operating your radio system.

31.2 Pay particular attention to charging your radio sys­tem batteries and range testing the system before
and after each flight.

31.3 Check that all controls are working correctly before
and after each flight.

32.1 The CG for your STINGER is located at 3-1/8“ to 3­3/8" (80 - 85 mm) back from the leading edge of the
wing when the wing has been attached to the fuse­lage as per illustration 34A.

32.2 For the initial flight, the CG should be located at 3
1/8” (80mm) back from the leading edge of the wing
when the wing has been attached to the fuselage.

32.3 The CG is measured with the engine, radio gear and
all other components installed but WITH NO FUEL
IN THE TANK.

32.4 Set up the CG as it will be when you fly it BUT WITH
NO FUEL IN THE TANK.

32.5 It is very important to have the CG correct. Flying
your model with the CG too far will likely lead to loss

of control and a crash. If you discover that after you
have assembled your model and installed your radio
and engine 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.

- Move other components fore or aft.

- Change engine to a lighter or heavier model.

- Add weight to the nose or tail. If adding it to the nose, try
to make it useful by going to a heavier duty engine or
adding a spinner with a heavy metal backing plate. As a
last resort, add stick on “dead” weight where appropriate.

33.1 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!!

33.2 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 experienced help.

33.3 Once you have completed your first flight, get in the
habit of checking your model over before and after each
flight! Don’t fly if you find something that is not right!

80 ~ 85 mm

in.

34A. CG location

15

CONTROL SURFACE THROW SPECIFICATIONS:
The throws are measured at the widest part of the control
surface. Adjust the position of the pushrods at the control
and/or servo horns to control the amount of throw. You may

also use ATV's if you radio has them but the mechanical
linkages should still be set so that the ATV's are near 100%
for best servo resolution.

1/3" - 1/2"

8mm - 12mm

1/3" - 1/2"

8mm - 12mm

1/4" - 3/8"

6mm - 9mm

1/4" - 3/8"

6mm - 9mm

5/8" - 1"

16mm - 25mm

5/8" - 1"

16mm - 25mm

Elevator Aileron Rudder

Parts for this VMAR Model

In the event that you require replacement parts for your

VMAR - STINGER 40-52 ARF, you can order parts from

your retailer or from the VMAR On - line store at:

www.richmondrc.com/support.htm.

For aftermarket parts and other information related to this

model see the VMAR On - Line store at

www.richmondrc.com/support.htm

Low rate High rate
ELEVATOR 1/3 “ (8mm) up 1/2” (12 mm) up

1/3 “ (8mm) down 1/2” (12 mm) down

AILERON 1/4” (6 mm) up 3/8” (9 mm) up

1/4” (6 mm) down 3/8” (9 mm) down

RUDDER 5/8 “ (16 mm) right 1” (25 mm) right

5/8 “ (16 mm) left 1” (25 mm) left

THE STINGER ON FLOAT

ALL THE HARDPOINT FOR MOUNTING THE VMAR FLOATARE PRE-INSTALL IN THE MODEL AND LABELED

THE PART NUMBER PREFERENCE:

F32W07 - White Float (For Apache, Discovery, Chalenger, Hornet & Stinger)

F32Y07 - Yellow float (For Apache, Discovery, Chalenger, Hornet & Stinger)

F32W07B - White Float for Vmar Beaver .40 ~ .60 (Va.101H0462)
F32Y07B - Yellow Float for Vmar Beaver .40 ~ .60 (Va.101H0461)

16

Note

VMAR, POLYCOTE and VMAX are Trademarks of VMAR Manufacturing Inc. and appointed VMAR agents worldwide.

Copyright VMAR Manufacturing Inc - 20040530