Seagull Models WESTLAND LYSANDER MK. III 55CC SEA216 User manual

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ASSEMBLY MANUAL
Code : SEA216
www.seagullmodels.com
“ Graphics and specications may change without notice “ .
Specications:
Wingspan---------------118 in (299.7 cm).
Wing area---------------1471 sq.in (94.9 sq.dm).
Weight-------------------22 lbs (10 kg).
Length-------------------70.4 in (178.8 cm).
Engine-------------------33-55cc gasoline - 2 stroke
----------------------------40-60cc - 4 stroke
----------------------------OS & Saito 5 Cylinder Radial
Radio---------------------6 channels with 8 servos.
Electric conversion: Optional.

Westland Lysander Instruction Manual.
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ank you for choosing the Westland Lysander ARTF by SEAGULL MODELS COMPANY
LTD,. e Westland Lysander was designed with the intermediate/advanced sport yer in
mind. It is a semi scale airplane which is easy to y and quick to assemble. e airframe is
conventionally built using balsa, plywood to make it stronger than the average ARTF, yet the
design allows the aeroplane to be kept light. You will nd that most of the work has been done
for you already. e motor mount has been tted and the hinges are pre-installed. Flying the
Westland Lysander is simply a joy.
is instruction manual is designed to help you build a great ying aeroplane. Please read this
manual throughly before starting assembly of your Westland Lysander . Use the parts listing
below to indentify all parts.
Please be awere that this aeroplane is not a toy and if assembley or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & REPONSIBILITY.
If you are inexperienced with basic R/C ight we strongly recommend you contact your R/C
supplier and join your local R/C model Flying Club. R/C Model Flying Clubs oer a variety
of training procedures designed to help the new pilot on his way to successful R/C ight.
ey will also be able to advise on any insurance and safety regulations that may apply.
INTRODUCTION.
WARNING.
KIT CONTENTS
1
5
22
33
8
4
6
7

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KIT CONTENTS.
SEA216 Westland Lysander MK III 55cc
SEA21601 Fuselage
SEA21602 Wing set
SEA21603 Tail set
SEA21604 Canopy
SEA21605 Pilot
SEA21606 Cowling
SEA21607 Wing strut
SEA21608 Wheel pants
ADDITIONAL ITEMS REQUIRED.
TOOLS & SUPPLIES NEEDED.
ick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modelling knife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
read-lock.
Paper towels.
INSTALL THE AILERONS
CONTROL HORN.
Fiberglass control horn
Epoxy.
Epoxy.
Epoxy.
Flap control horn.
Aileron control horn.
INSTALL FLAP CONTROL HORN.
�33cc-55cc 2 stroke.
�40cc-60cc 4 stroke
�OS & Saito 5 Cylinder Radial.
�Computer radio with 8 servos.
�Glow plug to suit engine.
�Propeller to suit engine.
�Protective foam rubber for radio
system.

Westland Lysander Instruction Manual.
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Epoxy.
Elevator berglass control horn.
Epoxy.
INSTALL RUDDER CONTROL HORN.
Repeat steps to install the rudder control
horn as same as steps done for ailerons.
Epoxy.
Rudder berglass control horn.
INSTALLING THE FUSELAGE SERVOS.
.
Because the size of servos dier, you
may need to adjust the size of the precut
opening in the mount. e notch in the
sides of the mount allow the servo lead to
pass through.
Fiberglass control horn
1) Install the rubber grommets and brass
collets onto the throttle servo. Test t the
servo into the aileron servo mount.
2) Secure the servos with the screws pro-
vided with your radio system.
rottle servo.
INSTALL ELEVATOR CONTROL HORN.
Fiberglass control horn

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THROTTLE SERVO ARM
INSTALLATION.
Install adjustable servo connector in the
servo arm as same as picture below:
Servo arm.
Adjustable servo
connector.
Loctite secure.
rottle servo arm.
INSTALLING THE RECEIVER SWITCH.
Install the switch into the precut hole in
the side, in the fuselage.
3/32” Hole.
Trim and cut.
.
Switch.
INSTALLING THE ENGINE SWITCH.
Trim and cut.
Switch.
INSTALLING THE STOPPER
ASSEMBLY.
1) Using a modeling knife, carefully cut
o the rear portion of one of the 3 nylon
tubes leaving 1/2” protruding from the
rear of the stopper. is will be the fuel
pick up tube.
2) Using a modeling knife, cut one length
of silicon fuel line. Connect one end of
the line to the weighted fuel pick up and
the other end to the nylon pick up tube.

Westland Lysander Instruction Manual.
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A
Vent tube. Fuel pick up
Fuel fill tube.
3) Carefully bend the second nylon tube up
at a 45º angle. is tube is the vent tube.
4) Test t the stopper assembly into the tank.
It may be necessary to remove some of the
ashing around the tank opening using a
modeling knife. If ashing is present, make
sure none falls into the tank.
5) With the stopper assembly in place, the
weighted pick-up should rest away from the
rear of the tank and move freely inside the
tank. e top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
6) When satised with the alignment of the
stopper assembly tighten the 3 x 20mm ma-
chine screw until the rubber stopper expands
and seals the tank opening. Do not over-
tighten the assembly as this could cause the
tank to split.
FUEL TANK INSTALLATION.
You should mark which tube is the vent
and which is the fuel pickup when you attach
fuel tubing to the tubes in the stopper. Once
the tank is installed inside the fuselage, it may
be dicult to determine which is which.
7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in
the rewall.
8) Use plywood template to hold in place the
fuel tank with C/A glue to secure the fuel
tank inside the fuselage.
Tie-wrap.

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C/A glue.
Balsa wood.
A
9) Connect the lines from the tank to the en-
gine and muer. e vent line will connect
to the muer and the line from the clunk to
the carburetor.
Vent tube.
Fuel pick up tube. Fuel ll tube.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should ow
through easily.
MOUNTING THE ENGINE .
Please see below pictures.

Westland Lysander Instruction Manual.
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Reinstall the servo horn by sliding the
connector over the pushrod wire. Center
the throttle stick and trim and install the
servo horn perpendicular to the servo
center line.
Move the throttle stick to the closed po-
sition and move the carburetor to closed.
Use a 2.5mm hex wrench to tighten the
screw that secures the throttle pushrod
wire. Make sure to use threadlock on the
screw so it does not vibrate loose.
COWLING.
Please see these below pictures.

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1) Slide the berglass cowl over the en-
gine and line up the back edge of the cowl
with the marks you made on the fuselage
then trim and cut as shown.
Because of the size of the cowl, it may be nec-
essary to use a needle valve extension for the
high speed needle valve. Make this out of suf-
cient length 1.5mm wire and install it into
the end of the needle valve. Secure the wire in
place by tightening the set screw in the side of
the needle valve.
2) While keeping the back edge of the cowl
ush with the marks, align the front of the
cowl with the cranksha of the engine. e
front of the cowl should be positioned so the
cranksha is in nearly the middle of the cowl
opening. Hold the cowl rmly in place using
pieces of masking tape.
3) Install the muer and muer extension
onto the engine and make the cutout in the
cowl for muer clearance. Connect the fuel
and pressure lines to the carburetor, muer
and fuel ller valve. Secure the cowl to fuse-
lage using the M3x10mm screws.
3x10mm

Westland Lysander Instruction Manual.
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ELECTRIC POWER CONVERSION.
1) Locate the items necessary to installl
the electric power conversion included
with your model.
2) Recommend the items necessary to in-
stall the electric power conversion parts
included with your model.
- Motor: 50cc
- Propeller: 22x10 ~ 26x12
- ESC: 120A
- Lipo: 9S -15S
3) Attach the electric motor box to the
rewall suitable with the cross lines
drawn on the electric motor box and re-
wall. Using M5x35mm to secure the mo-
tor box to the rewall. Please see pictures
below.
M5x35mm
5.2mm
5mm

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Blind nut.
4) Attach the motor to the front of the
electric motor box using four 4mm blind
nut, four M4x20mm hex head bolts to se-
cure the motor. Please see picture shown.
M4x20mm
5) Attach the speed control to the side
of the motor box using two-sided tape
and tie wraps. Connect the appropriate
leads from the speed control to the mo-
tor. Make sure the leads will not interfere
with the operation of the motor.
INSTALLING THE SPINNER.
e propeller should not touch any
part of the spinner cone. If it does, use a
sharp modeling knife and carefully trim
away the spinner cone where the propel-
ler comes in contact with it.

Westland Lysander Instruction Manual.
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INSTALLING THE AILERON SERVOS.
Servos
.
Small weight
.
Thread
Because the size of servos dier, you
may need to adjust the size of the precut
opening in the mount. e notch in the
sides of the mount allow the servo lead to
pass through.
1) Using a small weight (Weighted fuel
pick-up works well) and string, feed the
string through the wing as indicated.
2) Place the servo between the mounting
blocks and space it from the hatch. Use a
pencil to mark the mounting hole loca-
tions on the blocks.
3) Use drill bit in a pin vise to drill the
mouting holes in the blocks.
4) Apply 2-3 drops of thin C/A to each
of the mounting holes. Allow the C/A to
cure without using accelerator.
C/A glue
5) Use dental oss to secure the connec-
tion so they cannot become unplugged.

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6) Secure the servo to the aileron hatch
using Phillips screwdriver and the screws
provided with the servo.
7) Apply 1-2 drops of thin C/A to each of
the mounting tabs. Allow the C/A to cure
without using accelerator.
C/A glue
.
8) A string has been provided in the wing
to pull the aileron lead through to the
wing root. Remove the string from the
wing at the servo location and use the
tape to attach it to the servo extension
lead. Pull the lead through the wing and
remove the string. 9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.
2x10mm

Westland Lysander Instruction Manual.
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AILERON PUSHROD HORN
INSTALLATION.
60mm
50mm
M3 clevis. M3 lock nut.
Fuel tubing.
Hex nut.
Metal clevis.
INSTALLING THE FLAP SERVOS.
FLAP PUSHROD HORN
INSTALLATION.
2x10mm
INSTALLING THE RUDDER SERVO.
e process as aileron servo to install ser-
vos for rudder.

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INSTALLING THE ELEVATOR SERVO.
Please see below pictures.
WHEELS AND WHEEL PANTS.
Please see these below pictures.
Collar.
Collar.

Westland Lysander Instruction Manual.
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INSTALLING THE MAIN LANDING
GEAR.
4x10mm
4x25mm
Epoxy.

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INSTALLING RUDDER HINGE.
e rudder hinge assembly as below pic-
tures.
INSTALLING HORIZONTAL
STABILIZER.

Westland Lysander Instruction Manual.
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90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
2) Install the elevator control horn using
the same method as with the aileron con-
trol horns.
3) Position the elevator control horn on
the both side of elevator.
3) read one clevis and M3 lock nut on
to each elevator control rod. read the
horns on until they are ush with the
ends of the control rods.
4) Elevator and rudder pushrods assem-
bly as pictures below.
ELEVATOR PUSHROD HORN
INSTALLATION.
1) Locate items necessary to install rud-
der pushrod.
150mm
M3 clevis. M3 lock nut.
Elevator control horn.
3x12mm

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115mm
M3 clevis. M3 lock nut.
Rudder pushrod.
MOUNTING THE TAIL WHEEL.
Collar.
Tail gear.
Crimp.
Cable end. Metal connector.
M3 clevis.
1
2
2
RUDDER PUSHROD HORN
INSTALLATION.
Locate items necessaryto install rudder
pushrod.

Westland Lysander Instruction Manual.
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.
INSTALLATION PILOT AND CANOPY.
1) Locate items necessary to install pilot,
seats.
2) A scale pilot is included with this ARF.
e Seagull Pilot included tting well to
the cockpit. (or you can order others scale
pilot gures made by Seagull factory.
ey are available at Seagull distributors.)
If you are going to install a pilot gure,
please use a sanding bar to sand the base
of the gure so that it is at.
C/A glue.