Seagull Models Piper Comanche MS:142 User manual

“Graphics and specifications may change without notice”.

MS:142

ASSEMBLY MANUAL

Specifications:

Wingspan------------------------------72in(183cm).

Wingarea-----------------768.8sq.in(49.6sqdm).

Weight------------------------8.8-9.7lbs(4.0-4.4kg).

Length------------------------------46.3in(117.7cm).

Engine ------------------0.61-0.75cu.in-----2-stroke.

0.91-1.00cu.in -----4-stroke.

Radio-------------------6channelswith7 servos.

Electricconversion:optional

Retractslandinggear(excluded)-optional.

PIPER COMANCHE. Instruction Manual.

INTRODUCTION.

Thank you for choosing the PIPER COMANCHE ARTF by SEAGULL MODELS COMPANY LTD.

The PIPER COMANCHE 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

usingbalsa,plywoodtomakeitstrongerthantheaverageARTF,yetthedesignallowstheaeroplane

to be kept light. You will find that most of the work has been done for you already.The motor mount

has been fitted and the hinges are pre-installed . Flying the PIPER COMANCHE 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 PIPER COMANCHE . 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.

IfyouareinexperiencedwithbasicR/CflightwestronglyrecommendyoucontactyourR/Csupplier

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

proceduresdesigned tohelpthe newpiloton hiswayto successfulR/Cflight. Theywillalso beable

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

KIT CONTENTS

11 11

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ADDITIONAL ITEMS REQUIRED.

0.61 - 0.75 2-stroke.

0.91 - 1.00 4-stroke.

Computer radio with 7 servos.

Glow plug to suit engine.

Propeller to suit engine.

Protective foam rubber for radio

system.

Siliconefuel line.

TOOLS & SUPPLIES NEEDED.

Thick cyanoacrylate glue.

30 minute epoxy.

5 minute epoxy.

Hand or electric drill.

Assorted drill bits.

Modellingknife.

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.

SEA14201 Fuselage

SEA14202 Wing Set

SEA14203 Tail Set

SEA14204 Cowling

SEA14205 Main Gear

SEA14206 Nose Gear

SEA14207 Canopy

SEA14208 Decals

SEA14209 Pushrod Set

SEA14210 Wing Tube

SEA14211 Hardware Set

KIT CONTEN.TS

Hinge.

T-pin.

HINGING THE FLAP .

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.

Note:

1) Carefully remove the flap from one of

thewingpanels.Notethepositionofthehinges.

2)Removeeach hinge from thewingpanel

andflapand place aT-pininthe center ofeach

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 flap is

mounted to the wing panel.

3) Slide the flap on the wing panel until

there is only a slight gap. The hinge is now

centered on the wing panel and flap. Remove

the T-pins and snug the flap against the wing

panel. A gap of 1/64” or less should be

maintained between the wing panel and flap.

PIPER COMANCHE. Instruction Manual.

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.

2)Removeeach hinge from thewingpanel

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

each hinge. Slide each hinge into the aileron

untiltheT-pinis snug against theaileron.This

will help ensure an equal amount of hinge is

oneither sideofthe hingelinewhenthe aileron

is mounted to the wing panel.

Note:

1) Carefully remove the aileron from one

of the wing panels. Note the position of the

hinges.

HINGING THE AILERON .

Hinge.

C/Aglue.

4)Deflect the flap and completely saturate

eachhingewiththinC/Aglue.Theaileronsfront

surface should lightly contact the wing during

this procedure. Ideally, when the

Thehinge is constructedof 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 flap.

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

will be maintained throughout the lengh of the

flap to the wing panel hinge line.

Note:

7) Repeat this process with the other wing

panel, securely hinging the flap in place.

6) Using C/A remover/debonder and a

papertowel,removeanyexcessC/Aglue that

may have accumulated on the wing or in the

flap hinge area.

5)Turnthe wing panel over and deflect the

flapintheoppositedirection from the opposite

side.Applythin C/Agluetoeachhinge, making

sure that the C/A penetrates into both the flap

and wing panel.

8)Afterbothflap aresecurely hinged,firmly

grasp the wing panel and flap to make sure

the hinges are securely glued and cannot be

pulled out. Do this by carefully applying

medium pressure, trying to separate the flap

from the wing panel. Use caution not to crush

the wing structure.

Work the flap down several times to

“work in” the hinges and check for

proper movement.

Note:

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4) Deflect the aileron and completely

saturate each hinge with thin C/A glue. The

aileronsfrontsurface should lightlycontactthe

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.

Thehinge is constructedof 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.

Note:

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.Agap of 1/64” or less

shouldbemaintainedbetweenthewingpanel

andaileron.

Hinge.

T-pin.

C/Aglue.

6) Using C/A remover/debonder and a

papertowel,removeanyexcessC/Aglue that

may have accumulated on the wing or in the

aileronhingearea.

5)Turn thewingpanelover anddeflectthe

aileron in the opposite direction from the

opposite side. Apply thin C/A glue to each

hinge,makingsurethattheC/Apenetrates into

both the aileron and wing panel.

7) Repeat this process with the other wing

panel, securely hinging the aileron in place.

PIPER COMANCHE. Instruction Manual.

Maskingtape.

3) Once the epoxy cures and use a covering

iron to seal the covering on the wing and over

the wing tip.

8)Afterbothailerons 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.

Workthe aileronup anddown several

times to “work in” the hinges and

check for proper movement.

Note:

HINGING THE ELEVATOR.

Glue the rudder hinges in place using the

same techniques used to hinge the ailerons.

HINGING THE RUDDER.

Glue the rudder hinges in place using the

same techniques used to hinge the ailerons.

Hinge.

WING TIPASSEMBLY.

Removecovering.

Covering.

Wing tip.

1) Attach the plastic wing tip to the wing. Use a

hobby knife to remove the covering at the wing

end.

2) Apply the epoxy to the surface of both wing

tip and wing end. The plastic wing tip is held in

position and install it to the wing end. Please

see pictures shown.

Fillepoxy.

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2 sets.

3x40mm.

ALUMINUMWASHER.

CONTROLHORN

M3 SCREW.

18mm.

Epoxy.

Wing

Epoxy.

M3LOCKNUT.

Aileroncontrolhorn.

INSTALL THE AILERONS CONTROL

HORN.

1) Locate the hardware necessary to install

the control horns for the ailerons.

2) Position the control horn on the bottom of

the aileron. You will see pre-drill hole 3mm for

the horn mounting screw on the aileron.

3) Place epoxy into hole. This will harden the

threads and prevent the crews from pulling

loose.

4) Thread a control horn end with aluminum

washer, lock nut until the top edge of the end is

18mm from the vase of the horn as shown.

3mm.

Install the flap control horn using the same

methodassame as the aileron controlhorns.

INSTALL FLAP CONTROL HORN.

2 sets.

3x40mm.

PIPER COMANCHE. Instruction Manual.

16mm.

Epoxy.

Elevator.

Horizontal

Stabilizer.

Flap control horn.

Install the elevator control horn using the

same method as same as the aileron control

horns.

INSTALL ELEVATOR CONTROL HORN.

ALUMINUMWASHER.

CONTROLHORN

M3 SCREW.

18mm.

Epoxy.

M3LOCKNUT.

3mm.

Aluminum Washer.

CONTROLHORN

M3 SCREW.

M3LOCKNUT.

Epoxy.

Aluminum Washer.

Elevator.

Horizontal

Stabilizer.

3mm.

1 sets.

3x35mm.

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ENGINE MOUNT INSTALLATION.

Ruddercontrol horn.

1) Locate the items necessary to install the

engine mount included with your model. .

2) Usefour4x30mm head bolts andfour4mm

washers to attach the engine mount rails to

thefirewall.Tightenthe screws . Make sure to

use threadlock on the screws to help prevent

them from vibrating loose.

4x30mm.

Rudder.

Aluminum Washer.

CONTROLHORN

M3 SCREW.

M3LOCKNUT.

Epoxy.

Aluminum Washer.

Fuselage.

16mm.

Epoxy.

Rudder.

INSTALL RUDDER CONTROL HORN.

1 sets.

3x35mm.

Elevator control horn.

3mm.

Repeatsteps to install the rudder control horn

as same as steps done for ailerons.

PIPER COMANCHE. Instruction Manual.

5) With the stopper assembly in place,

the weighted pick-up should rest away from

therear 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 3 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.

Thread locker glue.

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.

INSTALLING THE STOPPER ASSEMBLY.

2) Usingamodelingknife,cutone length

ofsiliconfuelline. Connectone end of the line

totheweightedfuelpick up and the other end

to the nylon pick up tube.

Venttube. Fuel pick up tube.

Fuel fill tube.

3) Carefully bend the second nylon tube

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

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.

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