Control Throws; Flight Preparation - Seagull Models SEA158 Assembly Manual

Accurately mark the balance point on the
botttom of the wing on both sides of the
fuselage. The balance point is located 60 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
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.
*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.
60mm.
may improve the

CONTROL THROWS.

Ailerons: 12mm - 15mm up
12mm - 15mm down.
Elevator: 12mm - 15mm up.
12mm - 15mm down.
Rudder: 20mm - 30mm left.
20mm - 30mm right.

FLIGHT PREPARATION.

Check the operation and direction of the
elevator, rudder, ailerons and throttle.
A) Plug in your radio system per the
manufacturer's instructions and turn every-
thing on.
B) Check the elevator first. Pull back
on the elevator stick. The elevator halves
should move up. If it they do not, flip the servo
reversing switch on your transmitter to change
the direction.
C) Check the rudder. Looking from
behind the airplane, move the rudder stick to
the right. The rudder should move to the right.
If it does not, flip the servo reversing switch on
your transmitter to change the direction.
D) Check the throttle. Moving the
throttle stick forward should open the carbu-
retor barrel. If it does not, flip the servo re-
versing switch on your transmitter to change
the direction.
E) From behind the airplane, look at
the aileron on the right wing half. Move the
aileron stick to the right. The right aileron
should move up and the other aileron should
move down. If it does not, flip the servo re-
versing switch on your transmitter to change
the direction.
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