Vmar EXTRA-330L Installation and operating instructions

EXTRA - 330L
SEMI SCALE SPORT MODEL
Assembly
and
Operations Manual
Please review this manual throughly
Before assembling or Operating
The
VMAR EXTRA - 330L
Semi scale sport model
EXTRA - 330
We’ve used our ULTRA TOUGH POLYCOTE ECS Enhanced Covering System for this Model
16 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
1/3"
8.5 mm
1/3"
8.5 mm
1/4"
6.35 mm
1/4"
6.35 mm
5/8"
16 mm
5/8"
16 mm
Elevator Aileron Rudder
NOTE : The throws are measured at the widest part of the elevator, rudder and aileron. Adjust the position of the pushrods
at the control/servo horns to control the amount of throw. You may also use the ATV’s if your transmitter has them but the
mechanical linkages should still be set so that the ATV’s are near 100% for best servo resolution.
High rate Low rate
ELEVATOR 1/2” (12.6 mm) up 1/3” (8.5 mm) up
1/2” (12.6 mm) down 1/3” (8.5 mm) down
RUDDER 1” (25.4 mm) right 5/8” (16 mm) right
1” (25.4 mm) left 5/8” (16 mm) left
AILERON 3/8” (9.5 mm) up 1/4” (6.35 mm) up
3/8” (9.5 mm) down 1/4” (6.35mm) down.
Note: If your radio does not have dual rates, then set the control surfaces to move al the low rate throws.
Note

2 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
INDEX Stage No. Page No.
Liability Disclaimer and Caution 2
Introduction 3
Review Packing List, gather your tools & shop materials 4
Installing the wing 1 5
Fitting aileron servo 2-3 6-7
Installing the horizontal & vertical stabilizer 4-11 7-10
Installing the main landing gear 12 10
Installing the tail wheel 13 11
Installing the fuel tank 14 11
Installing the engine 15 11-12
Fitting rudder and elelvator control horns 16 12
Installing the servos 17 13
Connecting the pushrods 18-20 13-14
Connecting the throttle control 21 14
Adjust control surface throw limits 22 14
Final RC setup 23-24 14
Installing radio equipment 25-27 15
Balancing the aircraft 28 15
Confirm mechanical integrity 29 15
CG and throw specifications 29 16
Model airplanes, model engines, model engine fuel,
propellers and products such as the EXTRA-330L semi
scale sport model can be hazardous if improperly used.
Be cautious and follow all safety recommendations when
using your Model . 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.
Liability Disclaimer
It is important that the following liability disclaimer be
READ BEFORE ASSEMBLING OR USING THIS PRODUCT.
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 damageproperty. DO NOT FLY this model if you
are not qualified.
You are ultimately responsible for the mechanical, aero-
nautical and electrical integrity of this model and it’s struc-
ture, control surfaces, hinges, linkages, covering, engine,
radio, wiring, battery and all other components check all
components before and after each flight. Do not fly until
it’s right!
Proceeding with assembly and use of this product Indicates
Agreement With and Acceptance of the Liability Disclaimer .
CAUTION.
Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 15
120 -130 mm
25.1 Consult your radio manual for instructions
about hooking up your receiver battery, receiver and switch
harness.
25.2 Wrap the battery pack securely in foam suitable for RC
equipment and wrap the foam insulated pack in a plastic
bag or cling wrap.
25.3 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 the fuel
tank.
25.4 Connect the battery connector to your radio system
according to the radio manual.
INSTALLING THE RECEIVER BATTERY
Stage 25
26.1 Consult your radio manual for instructions about hook-
ing up your receiver.
26.2 Plan where you are going to put the receiver with con-
sideration for routing the antenna safely.
26.3 Wrap the receiver securely in foam suitable for RC
equipment and wrap the foam insulated receiver in a plas-
tic bag or cling wrap.
26.4 Generally in the absence of specific instructions from
the radio manufacturer, it is recommended that the receiv-
er 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.
INSTALLING THE RECEIVER
Stage 26
27.1 Consult your radio manual for instructions about test-
ing and operating your radio system.
27.2 Pay particular attention to charging your radio system
batteries and range testing the system before and after
each flight.
27.3 Check that all controls are working correctly before
and after each flight.
COMFIRM RADIO OPERATION
Stage 27
The CG for your EXTRA - 330L is located at 120 - 130 mm
(4 3/4” to 5 1/4”) back from the leading edge of the wing
when the wing has been attached to the fuselage.
For the initial flight, the CG should be located at 4 3/4”
(120mm) back from the leading edge of the wing when
the wing has been attached to the fuselage.
The CG is measured with the engine, radio gear and all
other components installed but WITH NO FUEL IN THE
TANK.
Set up the CG as it will be when you fly it BUT WITH NO
FUEL IN THE TANK.
It is very important to have the CG correct. Flying your model
with the CG too far will likely lead to loss control and a crash.
If you discover that after you have assembled your model
and installed your radio and engine that the CG 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.
BALANCING THE AIRCRAFT.
Stage 28
29.1 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!!
29.2 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
29.3 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!
CONFIRM MECHANICAL INTEGRITY
Stage 29

Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 3
Thank you for purchasing a VMAR product. VMAR
Manufacturing is committed to delivering superior value
to the RC modeler. Your new EXTRA - 330L is the
market leader in features, ease of use and flexibility.
Please review these instructions before beginning the
simple assembly procedure.
We’ve used metric measurements throughout these
instructions. We know that some of you like metric while
others think that furlongs per fortnight makes a nifty velocity
indicator. If you are in the furlong camp, bear with us….
It’s not a big deal…3 millimeters is stated as 3mm and
3mm is about 1/8 of an inch. Fire up your calculator and
you will find that 25.4 mm makes an inch. In places where
you have to actually set up something according to a
recommended measurement, we’ve listed an
approximate imperial measurement in inches in brackets.
Whenever we’ve used the directional terms left or right ,
they are with respect to the model when viewed as you
would when sitting in the cockpit…that is when viewed
from the back looking forward.
INTRODUCTION
You’ve taken the lid off the box and grabbed the instruction
booklet…you are about 6-8 hours away being ready to go
flying! Now is the time to look over what’s in the box.
Please see the attached Packing List and review the
contents and make sure nothing has been damaged in
shipping. Damage or missing components must be
reported to your vendor BEFORE any assembly begins.
Please DO NOT START if something is damaged or
missing.As you can imagine, once you join the wing halves
attach the stabilizers or install your radio or engine your
options for returns are very limited. Your vendor will not be
able to provide you with exchanges or replacements of
parts that have been assembled. DO NOT START
UNLESS IT’S RIGHT!
REVIEW PACKING LIST, GATHER YOUR TOOLS & SHOP MATERIALS.
CHECK OFF COMPONENTS AND PARTS INCLUDED.
Maijor components and sub-assemblies
- 01 Fuselage
- 02 Wing halves (left and right)
- 01 Vertical stabilizer with pre-installed rudder.
- 01 Horizontal stabilizer with pre-installed elevator .
- 01 Fiber glass cowl
- 01 Landing gear (6061 T6 Aluminum)
- 01 Documentation set including instruction booklet
- 01 Set of patch and/or trim sheets if required
- 01 Master bag
Contents of master bag
- 02 Engine mount T-beams
with allen screws
- 02 Ulatralight treaded wheels
- 01 Fibreglass main landing gear
- 01 Landing gear (6061 T6 Aluminum)
- 01 Wheel pants and landing gear cover
- 01 Wing parts bag
- 01 Spinner parts bag
- 01 Control horn parts bag
- 01 Tail wheel parts bag
- 01 Miscellaneous parts bag
- 01 Spare parts bag
Contents of main landing gear parts bag
- 04 mounting screws
- 02 Axle assemblies with wheel collars
Contents of wing parts bag
- 02 Aluminum tubes wing joiner
- 02 Aileron control rod assemblies with clevises
- 02 wing mouting butterfly nuts & washer.
Contents of spinner parts bag
- 01 spinner with allen screws
- 01 Allen wrench
- 01 Spinner shaft collet set
Contents of control horn parts bag
- 05 Metal bolts 3mm x 35-40mm
- 05 Metal nuts 3mm
- 05 Plastic control horns
- 05 Plastic T - nuts
- 05 Plastic beveled washers
Contents of tail wheel parts bag
- 01 Pre-assembled wire,
wheel and bracked assembly
- 02 Mounting screws
Contents of miscellaneous parts bag
- 01 Allen wrench for control rod
EZ connector of fitted
Contents of spare parts bag
Assortment of extra spare parts that are not required
but may come in handy in service
In addition to the items in the parts bags the follow-
ing items have been pre-installed or placed into the
fuselage at the factory.
- 01 Fuel tank assembly with stopper,
clunk and pre-bent metal tubing
- 01 Universal adjustable servo tray with mounting
screws and slider plates control rod assemblies
including connecting hardware.
14 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
Connect the rudder servo to the
receiver and turn on your transmit-
ter. Confirm that the neutral posi-
tions of the rudder servo are sus-
tained.
21.ATypical throttle control rod connection
Connected to the engine throttle arm
engine throttle arm
21.BThrottle control rod connected to the
engine throttle arm
Connected to the servo arm
Adjust the deflection of the control surfaces to match the
specifications on page 19
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.
CONNECTING THE PUSHRODS TO THE RUDDER
Stage 20
CONNECTING THE THROTTLE CONTROL
Stage 21
ADJUST CONTROL SURFACE THROW LIMITS.
Stage 22
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 centred. If
any adjustments are needed, do these by uncoupling the
relevant control and turning it clockwise to shorten the
linkage or couter - clockwise to lenthen it. Only when each
control surface has been centred mechanically in this way
should you begin adjusting the surface movement
(or throw)
FINAL R/C SET-UP
Stage 23
Now confirm that the control surfaces are moving in the
correct direction. Use the servo reversing swiches 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.
Stage 24
20.A Rudder control horn installed
and shown in position 20.B Connecting the rudder pushrod
to the rudder control horn
Rudder control
horn
Connect the clevis to the engine throttle arm at roughly half throttle. Look
into the throat of the engine carburettor as you rotate the throttle arm and
select a position where the throttle opening is about half what it is when
fully open.

4 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
CHECK OFF TOOLS AND SHOP MATERIALS NEEDED.
These tools and shop materials are not included and are
required to complete and operate your EXTRA- 330L and
most other remote control aircraft. For some specific
recommendations and part numbers please see the
attached listing of tools and materials available in your
market area.
- Clean and flat table or work surface approximately
600 x 1800 mm (24 x 72 in)
- 2.5 mm ball socket screw driver or Allen wrench
- 3.0 mm ball socket screw driver or Allen wrench
- 4.0 mm ball socket screw driver or Allen wrench
- Phillips (cross head) screw driver small size
- Phillips (cross head) screw driver medium size
- Flat blade screw diver medium size
- Low tack masking tape, ruler or tape measure
- Side (“wire”) cutters
- Pencil, pliers, hobby knife with #11 blade
- 30 minute Epoxy and 240 grit sandpaper
- Silicon Based Sealant (Dap – A – Goo)
- Epoxy mixing dishes, brushes and sticks
- Paper towels
- Rubbing alcohol
- Crescent wrench (optional)
- Heat gun and heat iron for covering
(optional for covering touch up)
CHECK OFF OTHER ITEMS NEEDED TO COMPLETE EXTRA-330L SEMI SCALE SPORT MODEL
- These items are not included and are required to
complete and operate your VMAR MODEL and most
other remote control aircraft.
- Medium fuel tubing appropriate for your choice of
engine and fuel. 500 – 750 mm ( 24-36 in.)
- Liquid thread locker
- RC FM radio with at least four channels of control and
on a frequency appropriate for your market area.
- Five servos compatible with the RC FM Radio.
Servos generally are sold with new radio systems
- External Switch Actuator appropriate for your radio
system (optional)
- Engine and muffler suitable for use in a remote control
model aircraft. A two stroke glow fuel .40 - .53 cubic
inch engine is recommended.
- Propeller suitable for the engine. See the engine
instruction manual recommendation for diameter and
pitch.
- Engine glow plug
- Engine glow plug igniter
- Engine 4 way wrench
- Fuel for the engine
- “After run” oil for engine
- RC Foam sheeting for wrapping radio receiver
and battery pack.
CHECK OFF OPTIONAL EQUIPMENT AND ACCESSORIES.
- These items are not included and are not required but
make the operation of your EXTRA - 330L and most
other remote control aircraft easier & more enjoyable.
- Power Tote Deluxe field box # VMA-PT109D
- Fuel pump and connecting tubing
- Fueling valve
- Chicken stick or electric starter
- Stick on weights
- Battery to power electric starter
- Battery charger
- Power Panel to manage starter and pump if electric.
- Extra propellers
- Extra Glow Plugs
- Misc Tools
- Engine test stand # VMA – ETS120
Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 13
Install the rubber servo grommets and brass ferrules
supplied with your radio equipment. The three servos that
control the elevator, rudder and throttle are Installed in the
servo tray mounted in the fuselage. Remove the servo
tray from the fuselage and mount the servos to the servo
tray as shown.
17.AUniversal servo tray.
18.APosition of throttle, rudder and
elevator servos and connected
to the pushrods.
Connect the elevator servo to the receiver and turn on
your transmitter. Confirm that the neutral positions of the elevator servo are sustained.
INSTALLING THE SERVOS
Stage 17
CONNECTING THE PUSHRODS TO THE THROTTLE, RUDDERAND ELEVATOR SERVOS
Stage 18
CONNECTING THE PUSHRODS TO THE ELEVATOR
Stage 19
17.CThrottle, elevator and rudder servos
connected to their repective push rod.
17.BNote the orientation and positions
of the three servos in the servo tray.
18.BPre-installed elevator and
rudder pushrod
18.DConnecting the elevator pushrod
to the elevator servo arm
18.CConnecting clevise to the servo arm
19.ATwo independent elevator control
horns shown in position 19.C Loosen collars to align elevator surfaces. Tighten collars securely
19.B Connecting the elevator pushrods
to the control horns
Elevator control
horn
Consult the pictures showing how
the throttle, rudder and elevator
servos are positioned and connect-
ed to the pushrods.
Throttle servo
Throttle servo Rudder servo
Rudder servo
Elevator servo
Elevator servo
Front
Rear
Elevator
control rod
Rudder
control rod
Front
Rear
Rear
Front
Rear

15.D Engine thrust line15.C Power module assembly15.B Aluminum engine mount
15.GThrottle control connect to the engine15.F Engine and fuel tank positioned
on the power module
15.E Engine and engine mount recomment
dation orientation.
15.J Install a suitable prop and spinner15.I Install the muffler and connect the
fuel and pressure line
15.HSee cowl installation tips o
page 20 & 21
12 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
fuel tank
holder dowel
Engine thrust line
The elevator control is fitted to the underside of both the right and
the left elevator halves. Pierce the covering over the pre-drilled hole
for the control horns installation as shown.
16.AControl horn assembly
FITTING ELEVATOR AND RUDDER CONTROL HORN
Stage 16
16.DElevator and rudder control horn
connected to the control rod
16.C Rudder control horn location16.BElevator control horn location
Elevator control
horn location
Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 5
To install the plug-in wing of the EXTRA-330L to the fuselage you
will need the following parts.
- Right & left wing panels.
- 1 front aluminum tube spar joiner 19 1/3 in. (490mm) long and
2/3 inch (16mm) diameter
- 1 rear aluminum tube spar joiner 20 in. (510mm) long and
2/3 inch (16mm) diameter
- 2 metal washer.
- 2 steel butterfly nuts (4mm)
Step 1.
Turn over the fuselage and remove the hatch cover. See 1.B.
Step 2.
Insert the front wing spar joiner and then the rear spar joiner.
See 1.D.
Step 3.
Remove the butterfly nuts and washer from the wing root
(the end opposite the wing tip)
Step 4.
Carefully slide each wing on to the wing spar joiner tubes
while threading the servo wiring harness through the side of
the fuselage.
Step 5.
Install the washer on the metal wing bolts and then
the wing nuts. Tighten the wing nuts.
1.A Aluminum wings joiner
1.B Hatch cover removed
1.C Wing spar joiner location 1.D Insert the wing spar joiner
tubes into the fuselage. 1.E Wing Panel
1.F Plug-in both wing panels 1.G Install the metal washer then
tighten the butterfly wing nuts 1.H Hatch cover installed
EXTRA - 330L
INSTALLING THE PLUG - IN WING OF THE EEXTRA - 330L
Stage 1
Front spar joiner hole Rear spar joiner hole
Front/rear wing joiner tube location

6 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
To install the aileron servos into the wing you will need the following items:
- Servos
- Servo 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 clevis screwed onto
both ends.
- Low tack masking tape.
- 2 aileron control horn assemblies
Carefully remove the cover plates from the aileron servo cavities. Ensure
you know which cover plate is for the right wing and which is for the left.
Remove the cover plates and retain the mounting screws. Notice that
there are wooden servo rails pre-installed into each servo cavity end. The
tube can be moved slightly at this point. Check out the other end of each
tube for a clean position and then using C/A glue secure the wiring
harness tubes at the aileron servo cavity end.
Install a servo in each aileron servo cavity and connect the servo wire to
the servo extension wires and run the extension wires, install the aileron
control horns.
2.A Prepare the servos by fitting the
rubber grommets & ferrules supplied
with your radio
2.B Aileron servo location
Step 1
Consult your radio instruction manual and center each
aileron servos 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 transmit-
ter. Remove the servo arm mounting screw and the
servo arm.
Step 2
Mount the servo arm back on the servo. Position the
arm to be parallel with the back edge of the wing.
Screw the arm into place with the servo arm mounting
screw supplied with the servo.
Locate the two aileron control rods in the hardware
bag. Ensure the clevises are screwed well onto the
threaded portion of the rod. Rotate and tug aggres-
sively on the clevises and ensure that they are not
loose on the rods.
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.
FITTING AILERON SERVOS
Stage 2
FITTING SERVOS
Stage 3
2.C Aileron servo mount 2.D Srew servo into position 2.E Install aileron control horn
Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 11
Install the tail wheel assembly. Note that the tail wheel
assembly has a loose wire end. Slide the loose wire end
into the sleeve tube that has been installed into bottom of
the rudder. Position the plastic bracket on the bottom of
the fuselage. Mark the location of the screw holes. Tap
the holes with the screws and then fasten the plastic
bracket to the fuselage. See the illustration below.
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 similar)
- Cross head Philips screw driver
The engine and the fuel tank are installed onto the power
module. First remove the power module from the fuselage by
removing the 4 nuts & washers
FITTING THE TAIL WHEEL
Stage 13
FITTING THE FUEL TANK
Stage 14
13.CTrim off the excess tail steering wire13.BScrew the tail wheel assembly
to the fuselage
13.AInsert the tail wheel steering wire
into the steering guide tube
14.DFuel tank installed on the
power module
14.CIllustration of fuel line positioning
inside the tank
14.BUse 100 mm (4 in) for fuel line
and 50 mm (2 in) for pressure line
50 mm (2 in.) for pressure line
100 mm (4 in.) for fuel line
Pressure line
Fuel line
INSTALLING THE ENGINE
Stage 15
14.AFuel tank
Power modul
15.A Power module

Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 7
Step 3
Ensure that the aileron control horns are screwed onto the threaded aileron
control horn bolts and that both control horns are in approximately the same
place on their respective bolts.
Step 4
Connect the aileron servo rods to the aileron control horns. If one of the two
clevises on each rod has a metal pin or screw, attach that clevis to the servo
output arm.
Step 5
Connect the other clevis to the servo output arm
Step 6
Remove the masking tape holding the ailerons.
Step 7
In the case of computer radios couple the servos together by connecting
them to the appropiate receiver channel. In the case of analog radios
couple the servos together using a Y harness.
Step 8
Turn on your radio and activate the ailerons, using the aileron stick and
ensure a smooth full motion can be achieved.
Step 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 ).
Step 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.
To install the stabilizer to the fuselage you will need.
- Fuselage
- Vertical stabilizer with pre-installed rudder
- Horizontal stabilizer with pre-installed elevator
3.A Aileron control rod assembly
3.B Aileron control horn assembly
3.C Aileron control installed
FITTING THE HORIZONTAL AND VERTICAL STABILIZERS
Stage 4
4.A The completed fuselage slot should
look like this
4.C Vertical stabilizers with pre-installed
rudder
4.B Horizontal stabilizers with
pre-installed elevator
Vertical slot
Horizontal slot
10 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL
Apply sufficient epoxy to both sides and the bottom of
the vertical stabilizer. Use 30 minute epoxy to ensure a
strong bond and give yourself plenty of working time.
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.
Identify the main landing gear components shown below
- 1 fiberglass main landing gear
- 2 axle assembly
- 2 main wheels ( 60mm x 20mm)
- 2 wheels pants
- 1 Landing gear cover
- 4 sheet metal screws 5 x 35 mm with washers
- 1 tail wheel assembly with 2 (3 x 15mm) sheet metal
screws.
12.AMain landing gear components
FITTING VERTICAL STABILIZER
Stage 11
FITTING THE MAIN LANDING GEAR
Stage 12
11.C Insert the pre-installed hinge to the
rudder
11.B Slide the fin in place11.A Apply plenty of epoxy
12.DInstall the wheel pant and wheel to
the main landing gear
12.C Install the axle and wheel12.BTurn over the fuselage to located
the 4 pre-drilled main landing gear
mounting holes
12.E Use 4 metal sheet screws (5 x 35mm)
to mount the main landing gear onto
the fuselage

8 Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL Assembly and Operations Manual EXTRA - 330L SEMI SCALE SPORT MODEL 9
Check the fit of the horizontal stabilizer in its slot. Make
sure the tail is square and centred to the fuselage by
taking measurements as shown in the diagrams on the
right, but don’t glue anyhing yet.
With the horizontal stabilizercorrectly
aligned, mark the shape of the
fuselage on the top and bottom of the
tailplane using a water soluble
non-permanent felt tip pen as shown
here.
6.A Mark the top of the horizontal
stabilizer 6.B Mark the bottom of the horizontal stabilizer
Now remove the horizontal stabilizer
and, using a sharp knife and a ruler
CAREFULLY cut 2mm inside the
marked lines and remove the covering
on the top and bottom of the tail as
shown. Make sure you only cut the
film and not the wood, otherwise the
horizontal stabilizer wiil be severely
weakened. 7.B Carefully cut inside the lines7.A Lines marked on the horizontal
stabilizer
7.E Clean off any traces of pen7.D Remove covering from the
bottom surface
7.C Remove covering
ALIGN THE HORIZONTAL STABILIZER
Stage 5
MARK ON HORIZONTAL STABILIZER
Stage 6
CUT AND REMOVE THE COVERING OF HOR. STABILIZER
Stage 7
5.C Align the horizontal stabilizer5.B Trial fit the horizontal stabilizer
in its slot
5.A Align horizontal
stabilizer
Apply sufifcient epoxy to the top and bottom of the
horizontal stabilizer. Use 30 minute epoxy to ensure a
strong bond and give yourself plenty of working time.
Insert the horizontal stabilizer in its slot in the fuselage and
re-check the alignment as per illustration 5.B. Excess epoxy
should be cleaned off with a rag or tissue before it cures.
Check the fit of the vertical stabilizer in its slot. Make sure
that it is glued square to the horizontal stabilizer and
fuselage
9.A Trial fit the vertical stabilizer onto fuselage.
Mark the shape of the fuselage on the left and right sides
of the vertical stabilizer using a felt-tip pen. Now remove
the vertical stabilizer and, using a sharp knife & ruler,
CAREFULLY cut just 2mm inside the marked lines and
remove the covering on both sides of the fin, just as you
did with the horizontal stabilizer, making sure you only
press hard enough to cut the covering, not the vertical
stabilizer.
INSTALL HORIRIZONTAL STABILIZER
Stage 8
8.C Wipe off excess epoxy8.B Slide the horizontal stabilizer
into place
8.A Apply plenty of epoxy
FITTING THE VERTICAL STABILIZER WITH RUDDER
Stage 9
FITTING THE VERTICAL STABILIZER WITH RUDDER
Stage 10
10.CRemove covering from both sides10.B Carefully cut through the covering10.AMark both sides of the vertical
stabilizer