Seagull Models Laser 200 User manual

LASER 200

Hand-made Almost Ready to Fly R/C Model Aircraft

ASSEMBLY MANUAL

Made in Vietnam.

Kit features

• Ready-made-minimal assembly & finishing required.

• Ready-covered covering.

• Comprehensive hardware pack including wheels, tank, spats,undercarriage.

• Photo-illustrated step-by-step Assembly Manual.

SPECIFICATIONS:

WING SPAN ----------------------------------------175CM -------------------------------- 68.75 in.

WING AREA ------------------------------------------4746CM2 --------------------------735.6 Sq.in.

WEIGHT ---------------------------------------4.1 - 5KG ---------------------- 9.02lb - 11lb.

ENGINE SIZE -------------------------------------.91 - 1.20 ---------------------------- 2 stroke.

-------------------------------------1.20 - 1.50 ---------------------------- 4 stroke.

RECOMMENDED R/C --------------------------- 4 CHANNEL MINIMUM WITH 6 SERVOS.

FLYING SKILL LEVEL ----------------------------------------ADVANCED / INTERMEDIATE.

LENGTH -------------------------------------------161CM ----------------------------------63.4in.

LASER 200 Instruction Manual

INTRODUCTION

Thank you for choosing the LASER 200 ARTF by SEAGULL MODELS. The LASER 200 was

designed with the intermediate/advanced sport flyer in mind. It is a semi scale airplane which is easy

to fly and quick to assemble. The airframe is conventionally built using balsa, plywood and veneer

to make it stronger than the average ARTF , yet the design allows the aeroplane to be kept light. You

will find that most of the work has been done for you already. The pushrods are pre-made to the

correct lengths, the motor mount has been fitted and the hinges are pre-installed and pinned for

security. Flying the LASER 200 is simply a joy.

This instruction manual is designed to help you build a great flying aeroplane. Please read this

manual thoroughly before starting assembly of your LASER 200 . Use the parts listing below to

identify all parts.

WARNING

Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is

capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU

ASSUME ALL RISK & RESPONSIBILITY.

If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplier

and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training

procedures designed to help the new pilot on his way to successful R/C flight. They will also be able

to advise on any insurance and safety regulations that may apply.

ADDITIONAL ITEMS REQUIRED

.91-1.20 2-stroke engine or

1.20-1.50 4-stroke engine.

Computer radio with six servos.

Glow plug to suit engine.

Propeller to suit engine.

Protective foam rubber for radio

system.

TOOLS & SUPPLIES NEEDED

Thick 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

Thread-lock

Paper towels

PARTS LISTING

FUSELAGE ASSEMBLY

(1) Fuselage.

(1) Canopy hatch.

WING ASSEMBLY

(1) Right wing half with pre-installed

aileron.

(1) Left wing half with pre-installed

aileron.

(1) Alumium wing dihedral brace.

Tail section assembly

(1) Vertical stabilizer with pre-

installed rudder.

(1) Horizontal stabilizer with pre-

installed elevator halves.

Some more parts.

HARDWARE PACK

COWLING

Landing gear.....

LASER 200 Instruction Manual

NOTE: To avoid scratching your new aero-

plane we suggest that you cover your

workbench with an old towel. Keep a

couple of jars or bowls handy to hold

the small parts after you open the

bags.

Please trial fit all parts. Make sure you

have the correct parts and that they

fit and are aligned properly before

gluing! This will ensure proper as-

sembly as the LASER 200 is made

from natural materials and minor ad-

justments may have to be made.

The paint and plastic parts used in

this kit are fuel proof. However, they

are not tolerant of many harsh chemi-

cals including the following: paint

thinner, cyano-acrylate glue accel-

erator, cyanoacrylate glue de-bonder

and acetone. Do not let these chemi-

cals come in contact with the colours

on the covering and the plastic parts.

LASER 200 Instruction Manual

4)Deflect the aileron and completely

saturate each hinge with thin C/A glue. The

ailerons front surface should lightly contact the

wing during this procedure. Ideally, when the

hinges are glued in place, a 1/64” gap or less

will be maintained throughout the lengh of the

aileron to the wing panel hinge line.

Note:

The control surfaces, including the

ailerons, elevators, and rudder, are

prehinged with hinges installed, but the

hinges are not glued in place. It is

imperative that you properly adhere the

hinges in place per the steps that follow

using a high-quality thin C/A glue.

1) Carefully remove the aileron from one

of the wing panels. Note the position of the

hinges.

2) Remove each hinge from the wing panel

and aileron and place a T-pin in the center of

each hinge. Slide each hinge into the aileron

until the T-pin is snug against the aileron. This

will help ensure an equal amount of hinge is

on either side of the hinge line when the aileron

is mounted to the wing panel.

HINGING THE AILERONS.

Note:

The hinge is constructed of a special

material that allows the C/A to wick or

penetrate and distribute throughout the

hinge, securely bonding it to the wood

structure of the wing panel and aileron.

3) Slide the aileron on the wing panel until

there is only a slight gap. The hinge is now

centered on the wing panel and aileron.

Remove the T-pins and snug the aileron

against the wing panel. A gap of 1/64” or less

should be maintained between the wing panel

and aileron.

5) Turn the wing panel over and deflect the

aileron in the opposite direction from the

opposite side. Apply thin C/A glue to each

hinge, making sure that the C/A penetrates into

both the aileron and wing panel.

C/A glue.

LASER 200 Instruction Manual

6) Using C/A remover/debonder and a

paper towel, remove any excess C/A glue that

may have accumulated on the wing or in the

aileron hinge area.

Using a small weight (Weighted fuel pick-up

works well) and thread, feed the string through

the wing as indicated.

INSTALLING THE AILERON SERVOS.

Attach servo lead to the aileron servo. Attach

the string to the servo lead and carefully thread

it though the wing. Once you have thread the

lead throught the wing, remove the string so it

can use for the other servo lead. Tape the servo

lead to the wing to prevent it from falling back

into the wing.

2) Install the aileron servo mount into the

wing, with the output shaft towards the lead-

ing edge of the wing.

Wing bottom.

Small weight.

Thread.

Electric wire.

8) After both ailerons are securely hinged,

firmly grasp the wing panel and aileron to

make sure the hinges are securely glued and

cannot be pulled out. Do this by carefully

applying medium pressure, trying to separate

the aileron from the wing panel. Use caution

not to crush the wing structure.

Note: Work the aileron up and down several

times to “work in” the hinges and check

for proper movement.

7) Repeat this process with the other wing

panel, securely hinging the aileron in place.

1) Install the rubber grommets and brass

collets onto the aileron servo. Test fit the servo

into the aileron servo mount.

Because the size of servos differ,

you may need to adjust the size of the

precut opening in the mount. The notch

in the sides of the mount allow the servo

lead to pass through.

We recommended to use long ser-

vos arm for all servos without throttle

servo.

Small weight.

Thread.

Servo (2pcs).

LASER 200 Instruction Manual

AILERON LINKAGE.

INSTALLING THE AILERON LINKAGE.

1) Using a ruler & pen to draw a straight

line as below picture.

2) Locate the two nylon control horns, two

nylon control horn backplates and six machine

screws.

3) Position the aileron horn on the bottom

side of aileron. The clevis attachment holes

should be positioned over the hinge line.

4) Using a 1mm drill bit and the control

horns as a guide, drill the mounting holes

through the aileron halves.

6) Thread one nylon adjustable control horn

onto each aileron control rod. Thread the

horns on until they are flush with the ends of

the control rods.

5) Mount the control horns by inserting the

screws through the control horn bases and

aileron halves, then into the mounting

backplates. Do Not overtighten the screws or

the backplates may crush the wood.

Repeat the procedure for the other wing

half.2MM x 30mm.

Straight line.

3MM x 30mm.

M3 lock nut.

Control Horn.

Mounting Screws.

Mounting Plate.

3MM x 30mm.

2MM x 30mm.

C/A glue attach.

LASER 200 Instruction Manual

Mark point.

Repeat the procedure for the other wing

half.

M2 lock nut.

Snap keepper.

LASER 200 Instruction Manual

FUEL TANK.

INSTALLING THE STOPPER ASSEMBLY.

1) Using a modeling knife, carefully cut

off the rear portion of one of the 3 nylon tubes

leaving 1/2” protruding from the rear of the

stopper. This 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 pickup and the other

end to the nylon pick up tube.

3) Carefully bend the second nylon tube

up at a 45º angle. This tube is the vent tube.

ENGINE MOUNT.

Mark and drill 4 holes for engine mount.

LASER 200 Instruction Manual

Carefully use a lighter or heat gun to

permenently set the angle of the vent tube.

Important: When the stopper assembly is in-

stalled in the tank, the top of the vent tube

should rest just below the top surface of the

tank. It should not touch the top of the tank.

4) Test fit the stopper assembly into the

tank. It may be necessary to remove some of

the flashing around the tank opening using a

modeling knife. If flashing is present, make

sure none falls into the tank.

5) With the stopper assembly in place,

the weighted pickup should rest away from

the rear of the tank and move freely inside the

tank. The 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 satisfied with the alignment of

the stopper assembly tighten the 3mm x 20mm

machine screw until the rubber stopper ex-

pands and seals the tank opening. Do not

overtighten the assembly as this could cause

the tank to split.

Attach the silicone fuel and pressure pipes to

the tank. The lower pipe is the ‘feed’ and the

upper two the ‘pressure and fill’. The fill pipe

is the next pipe.

Slide the tank into the fuselage from inside so

that the neck is at the top of the fuselage and

it locates through the engine bulkhead. Gently

secure it to the top horizontal former with a

cable tie.

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 difficult to determine which is which.

Blow through one of the lines to ensure

the fuel lines have not become kinked in-

side the fuel tank compartment. Air should flow

through easily.

WHEEL AND WHEEL PANTS.

PARTS REQUIRED

1) Assembling and mounting the wheel

pants as shown below pictures.

LASER 200 Instruction Manual

Landing gear.

2) Follow diagram below for wheel pant

installation:

3) You have to trim each axles and using a

toll cutting and cut-off wheel.

Caution when cutting the axles and wear

protective goggles.

14mm.

7mm.

62mm.

lite-plywood block.

Wheel Collar.

Axle.

Wheel.

Nut.

Wheel Pant.

Landing Gear.

Nut.

Plywood Washer.

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