Seagull Models SPORT CRUISER Specifications download pdf (Page 25)

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BALANCING.

 1) It is critical that your airplane be

balanced correctly. Improper balance will

cause your plane to lose control and crash.

THE CENTER OF GRAVITY IS LOCATED

110 MM BACK FROM THE LEADING EDGE

OF THE WING AT THE WING ROOT.

 3) Turn the airplane upside down. Place

your fingers on the masking tape and carefully

lift the plane .

 2) Mount the wing to the fuselage. Using a

couple of pieces of masking tape, place them

on the top side of the wing

110 mm back from

the leading edge of the wing at the wing root.

Accurately mark the balance point on the top

of the wing on both sides of the fuselage. The

balance point is located 110 mm back from

the leading edge of the wing at the wing root.

This is the balance point at which your model

should balance for your first flights. Later, you

may wish to experiment by shifting the balance

up to 10mm forward or back to change the

flying characteristics. Moving the balance

forward may improve the smoothness and

arrow- like tracking, but it may then require

more speed for take off and make it more

difficult to slow down for landing. Moving the

balance aft makes the model more agile with

a lighter and snappier ”feel”. In any case,please

start at the location we recommend .

With the wing attached to the fuselage, all

parts of the model installed ( ready to fly), and

empty fuel tanks, hold the model at the marked

balance point with the stabilizer level.

Lift the model. If the tail drops when you lift,

the model is “tail heavy” and you must add

weight* to the nose. If the nose drops, it is

“nose heavy” and you must add weight* to the

tail to balance.

CONTROL THROWS.

Ailerons: 12mm - 15mm up

12mm - 15mm down.

Elevator: 12mm - 15mm up.

12mm - 15mm down.

Rudder: 20mm - 30mm left.

20mm - 30mm right.

110mm.

*If possible, first attempt to balance the model

by changing the position of the receiver battery

and receiver. If you are unable to obtain good

balance by doing so, then it will be necessary

to add weight to the nose or tail to achieve the

proper balance point.

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