Control Throws; Flight Preparation; Preflight Check - Seagull Models Extra 300S Assembly Manual

CONTROL THROWS.

1) We highly recommend setting up the
EXTRA 300S using the control throws listed
at right. We have listed control throws for both
Low Rate (initial test flying/sport flying) and
High Rate (aerobatic flying).
2) Turn on the radio system, and with the
trim tabs on the transmitter in neutral, center
the control surfaces by making adjustments
to the clevises or adjustable servo connectors.
The servo arms should be centered also.
3) When the elevator, rudder and aileron
control surfaces are centered, use a ruler and
check the amount of the control throw in each
surface. The control throws should be
measured at the widest point of each sur-
face!
INITIAL FLYING/SPORT FLYING
Ailerons low rate -3/8" up -3/8" down
Elevator low rate -3/16" up - 3/16" down
Ailerons high rate - 7/8" up -7/8" down
Elevator high rate -3/8' up - 3/8" down
Rudder high rate -1 1/4" left and right
Rudder low rate - 3/4" left and right
Do not use the aerobatic settings
for initial test flying or sport flying.
4) By moving the position of the adjust-
able control horn out from the control surface,
you will decrease the amount of throw of that
control surface. Moving the adjustable con-
trol horn toward the control surface will in-
crease the amount of throw.

FLIGHT PREPARATION.

A) Check the operation and direction of
the elevator, rudder, ailerons and throttle.
B) Plug in your radio system per the
manufacturer's instructions and turn every-
thing on.
C) Check the elevator first. Pull back on
the elevator stick. The elevator halves should
move up. If it they do not, flip the servo re-
versing switch on your transmitter to change
the direction.
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hind 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.
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 reversing switch on
your transmitter to change the direction.
stick forward should open the carburetor bar-
rel. If it does not, flip the servo reversing switch
on your transmitter to change the direction.
and receiver batteries before your first day of
flying.
in the EXTRA 300S to ensure that everything
is tight and well bonded.
plane. Do this with the fuel tank empty.
move in the correct direction and not bind in
any way.
with dual rate switches double check that they
are on the low rate setting for your first few
flights.
are moving the proper amount for both low
and high rate settings.
be fully extended and not coiled up inside the
fuselage.
of balance propeller will cause excessive vi-
bration which could lead to engine and/or air-
frame failure.
We wish you many safe and enjoyable
flights with your EXTRA 300S.
D) Check the rudder. Looking from be-
F) From behind the airplane, look at the
E) Check the throttle. Moving the throttle

PREFLIGHT CHECK.

1) Completely charge your transmitter
2) Check every bolt and every glue joint
3) Double check the balance of the air-
4) Check the control surfaces. All should
5) If your radio transmitter is equipped
6) Check to ensure the control surfaces
7) Check the receiver antenna. It should
8) Properly balance the propeller. An out
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