Seagull Models KA8-B Manual de usuario

Specifications:

Wingspan--------------------------------------------118.1in(300cm).

Wingarea----------------------------------------899sq.in(58sqdm).

Weight ----------------------------------------------------6.2lbs(2.8kg).

Length --------------------------------------------------57.1in(145cm).

Radio ---------------------------------------------------------6channels.

Servo ---------------------------------------------4MN48miniservos.

3 servos flying skill level intermediate/advanced.

ASSEMBLY MANUAL

MS:137

“Graphics and specifications may change without notice”.

(Glider)

KA8-B Instruction Manual.

INTRODUCTION.

Thankyouforchoosingthe KA8-B ARTF by SEAGULL MODELS. The KA8-B wasdesigned with

thesportstrainer flyerinmind.ItisaHigh-wing aeroplanewhichiseasytoflyandquicktoassemble.

The airframe is conventionally built using balsa, plywood and veneer to make it stronger than the

averageARTF,yetthedesignallowstheaeroplanetobekeptlight.Youwillfindthatmostofthework

hasbeendoneforyou already.Thepushrodsarepre-made tothecorrect lengths,themotormount

has been fitted and the hinges are pre-installed and pinned for security. Flying the KA8-B is simply

ajoy.

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

manual throughly before starting assembly of your KA8-B. Use the parts listing below to identify all

parts.

WARNING.

Pleasebeawarethatthisaeroplaneisnotatoyandifitisassembledorusedincorrectlyitwillcause

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

proceduresdesignedtohelpthenewpilot onhiswaytosuccessfulR/Cflight. Theywillalsobeable

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

ADDITIONAL ITEMS REQUIRED.

- 6 channels radio with 7 servos.

- Glow plug to suit engine.

- Propeller to suit engine.

- Protective foam rubber for radio

system.

- Silicone fuel line.

- Stick-on weights for balance

(If necessary).

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.

PARTS LISTING.

FUSELAGE ASSEMBLY

1) Fuselage.

WING ASSEMBLY

1) Right wing half with pre-installed

aileron.

2) Left winghalf withpre-installedaileron.

TAIL SECTION ASSEMBLY

1) Vertical stabilizer with pre-installed

rudder.

2) Horizontal stabilizer withpre-installed

elevartor halves.

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 hingefromthewing panel

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

each hinge. Slide each hinge into the aileron

untiltheT-pin is snugagainsttheaileron.This

will help ensure an equal amount of hinge is

oneithersideofthe hingelinewhentheaileron

is mounted to the wing panel.

HINGING THE RUDDER .

Note:

Hinge.

T-pin.

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

shouldbemaintainedbetween the wing panel

andaileron.

1) Carefully remove the aileron from one

of the wing panels. Note the position of the

hinges.

4)Deflect the aileron and completely

saturate each hinge with thin C/A glue. The

aileronsfrontsurface shouldlightlycontact 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.

Thehingeis constructedof aspecial

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:

Hinge.

C/Aglue.

KA8-B Instruction Manual.

8)Afterbothailerons aresecurelyhinged,

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.

7) Repeat this process with the other wing

panel, securely hinging the aileron in place.

Workthe aileronup anddown several

times to “work in” the hinges and

check for proper movement.

Note:

6) Using C/A remover/debonder and a

papertowel,removeany excess C/Agluethat

may have accumulated on the wing or in the

aileronhingearea.

5)Turn the wing paneloverand deflect the

aileron in the opposite direction from the

opposite side. Apply thin C/A glue to each

hinge,making surethattheC/Apenetratesinto

both the aileron and wing panel.

HINGING THE ELEVATOR .

Instruction Manual.

Aileroncontrol horn.

INSTALL THE AILERON CONTROL

HORN .

2 sets.

3x35mm.

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 6mm 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

9mm from the vase of the horn as shown.

6mm.

ELEVATOR CONTROL HORN

INSTALLATION.

2 sets.

3x35mm.

Install the elevator control horn using the

samemethodassameas theaileroncontrol

horns.

KA8-B Instruction Manual.

Rudderservo.

SERVO ARM INSTALLATION.

Installadjustableservoconnectorinthe servo

arm as same as picture below:

AdjustableServo

connector.

Servoarm.

Loctite secure.

1PCS.

Elevatorservo.

Elevatorcontrolhorn.

6mm.

INSTALLING THE FUSELAGE SERVO.

1) Installtherubbergrommetsandbrass

colletsonto thethrottleservo. Test fittheservo

into the aileron servo mount.

 2) Secure the servos with the screws pro-

vided with your radio system.

Because the size of servos differ, you

mayneedtoadjustthesizeofthe precutopen-

ing in the mount. The notch in the sides of the

mount allow the servo lead to pass through.

Throttleservo.

Instruction Manual.

2) Usingasmallweight (Weighted fuelpick-up

workswell) and string, feedthe string through

the wing as indicated.

String.

Small weight.

Installtheswitchinto the precutholeinthe

side of fuselage.

INSTALLING THE SWITCH.

Switch.

Servos.

Because the size of servos differ, you

mayneed toadjustthesizeoftheprecutopen-

ing in the mount. The notch in the sides of

themountallowtheservoleadtopassthrough.

AILERON SERVO INSTALLATION.

Rudderservoarm.

Elevatorservoarm.

Trimand cut.

Throttleservoarm.

KA8-B Instruction Manual.

Snapkeeper.

Servoarm.

8mm Snapkeeper.

M2 lock nut. Metalclevis.

8mm

Cut.

AILERONPUSHROD HORN INSTALLATION

FLAP SERVO INSTALLATION.

Attach the string to the servo lead and carefully thread it though the wing.

M2x6mm.

Wing rib.

Wing.

Small weight.

String.

Flap servo.

M2x6mm. Aileronservo.

Aileronservo.

Flapservo.

Instruction Manual.

AIRBREAKES PUSHROD CONTROL

HORN INSTALLATION.

M2x6mm.

Repeat the procedure for the other

aileron servo.

C/Aglue.

KA8-B Instruction Manual.

ELEVATOR PUSHROD INSTALLATION.

M3x30mm.

678mm.

Cut.

THE HORIZONTAL STABILIZER

INSTALLATION.

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