Seagull Models CESSNA 152 User manual

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CESSNA 152

ASSEMBLY MANUAL

MS: 174

Specications:

Wing span ------------------------------79.9in (203cm).

Wing area -----------------911.4sq.in (58.8sq dm).

Weight ----------------------------------9.9lbs (4.5kg).

Length ------------------------------57.5in (146.0cm).

Engine ------------------ ----0.75-0.91cu.in -2-stroke.

0.91-1.25cu.in -4-stroke.

Radio ------------------- 5 channels with 8 servos.

Electric conversion: optional

“Graphics and specications may change without notice”.

CESSNA 152 Instruction Manual.

ank you for choosing the CESSNA 152 ARTF by SEAGULL MODELS COMPANY LTD,.

e CESSNA 152 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 onventionally 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 CESSNA 152 is simply a joy.

is instruction manual is designed to help you build a great ying earoplane. Please read

this manual throughly before starting assembly of your CESSNA 152. User 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 inexperianced 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

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KIT CONTENTS.

ADDITIONAL ITEMS REQUIRED.

0.75- 0.91 2-stroke.

0.91-1.25 4-stroke.

Computer radio with 7 servos.

Glow plug to suit engine.

Propeller to suit engine.

Protective foam rubber for radio

system.

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.

HINGING THE FLAP

M2x10 mm

SEA17401 Fuselage

SEA17402 Wing Set

SEA17403 Tail Set

SEA17404 Fiberglass Cowling

SEA17405 Main Landing Gear

SEA17406 Nose Landing Gear

SEA17407 Windshield and Window set

SEA17408 Decal

SEA17409 Pushrod Set

SEA17410 Wing tube

SEA17411 Fiberglass Wheel Pants

CESSNA 152 Instruction Manual.

HINGING THE AILERON.

e control surfaces, including the ai-

lerons, elevators, and rudder, are pre-

hinged with hinges in stalled, but the

hinges are not glued in place. It is im-

perative that you properly adhere the

hinges in place per the steps that fol-

low using a high-quality thin C/A glue.

Note :

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.

is 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.

3) Slide the aileron on the wing panel until

there is only a slight gap. e hinge is now-

centered on the wing panel and aileron. Re-

move 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.

T-pin

Hinge.

4) Deect the aileron and completely satu-

rate each hinge with thin C/A glue. e ailer-

ons 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.

e 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.

Note :

C/A glue

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HINGING THE ELEVATOR.

5) Turn the wing panel over and deect the

aileron in the opposite direction from the

opposite side. Apply thin C/A glue to each

hinge, making sure that the C/A pene-

trates into both the aileron and wing panel.

6) Using C/A remover/debonder and a pa-

per towel, remove any excess C/A glue that

may have accumulated on the wing or in the

aileron hinge area.

7) Repeat this process with the other wing

panel, securely hinging the aileron in place.

8) Aer both ailerons are securely hinged,

rmly grasp the wing panel and aileron to

make sure the hinges are securely glued and

cannot be pulled out. Do this by carefully ap-

plying medium pressure, trying to separate

the aileron from the wing panel. Use caution

not to crush the wing structure.

Work the aileron up and down sev-

eral times to “work in” the hinges

and check for proper movement.

Note :

Glue the elevator 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.

INSTALL THE AILERONS CONTROL

HORN.

Fiberglass control horn

Epoxy

CESSNA 152 Instruction Manual.

INSTALL FLAP CONTROL HORN.

Aileron control horn. Epoxy

Install the ap control horn using the same

method as same as the aileron control horns.

Fiberglass control horn.

Epoxy

Aileron control horn.

Epoxy

INSTALL ELEVATOR CONTROL HORN.

Fiberglass control horn.

Epoxy

Aileron control horn.

Epoxy

INSTALL RUDDER CONTROL HORN.

Repeat steps to install the rudder control

horn as same as steps done for ailerons.

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Epoxy

Rudder control horn.

ENGINE MOUNT INSTALLATION.

1) Locate the items necessary to install the

engine mount included with your model.

4x30 mm

2) Use four 4x30mm head bolts and four

4mm washers to attach the engine mount

rails to the rewall. Tighten the screws .

Make sure to use threadlock on the screws to

help prevent them from vibrating loose.

read locker glue.

INSTALLING THE S TOPPER

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.

CESSNA 152 Instruction Manual.

Fuel tank.

Vent tube.

Fuel fill tube.

Fuel tank.

Vent tube. Fuel pick up tube.

Fuel fill tube.

Balsa.

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.

Fuel pick up tube.

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.

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Elevator servo.

Rudder servo.

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.

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.

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 provid-

ed with your radio system.

rottle servo.

THROTTLE SERVO ARM INSTALLA-

TION.

Install adjustable servo connector in the

servo arm as same as picture below:

Loctite secure. Adjustable Servo

connector.

Servo arm.

1 PCS

Rudder servo arm.

rottle servo arm.

Elevator servo arm.

INSTALLING THE SWITCH.

Install the switch into the precut hole in

the side, in the fuselage.

3/32” Hole.

Trim and cut

Switch

CESSNA 152 Instruction Manual.

wheel collar.

wheel.

Axle.

Washer.

M3.

C/A glue.

Landing Gear. wheel Pant.

Axle.

Locker glue.

wheelPant.

wheel.

M3.

wheel collar.

nut.

Washer.

WHEELS AND WHEEL PANTS.

1) Assemble and mounting the landing gear,

wheels to the wheel pants as shown inthe fol-

lowing pictures.

2) Follow diagram below for wheel pant in-

stallation:

3) A drop of C/A glue on the wheel collar

screws will help keep them from coming lose

during operation.

Repeat the process for the other wheel.

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