Set The Control Throws; Preflight; Identify Your Model; Charge Your Batteries - GREAT PLANES Extra 300S Instruction Manual

3. Make sure the control surfaces move in the proper
direction as illustrated in the following sketch.
4-CHANNEL RADIO SET-UP
(STANDARD MODE 2)
ELEVATOR MOVES UP
4-CHANNEL
TRANSMITTER
RIGHT AILERON MOVES UP
LEFT AILERON MOVES DOWN
4-CHANNEL
TRANSMITTER
RUDDER MOVES RIGHT
4-CHANNEL
TRANSMITTER
CARBURETOR WIDE OPEN
4-CHANNEL
TRANSMITTER
4. Adjust your pushrod hookups and set up your radio to
provide the control surface movements as follows. Use a
ruler or a Great Planes Accu Throw Control Surface
Deflection Meter (GPMR2405) to measure the throws.

Set the Control Throws

IMPORTANT! Do not exceed the elevator throws
provided. The Extra 300 ARF requires little elevator
throw to perform even the most aggressive
aerobatics. Exceeding the recommended throws may
result in a model that is difficult to control.
We recommend the following control surface throws:
Note: The throws are measured at the widest part of the
elevators and rudder. Adjust the position of the pushrods
at the control horn and/or servo horns to determine the
amount of throw. You may also use the ATV's if your
transmitter has them, but the mechanical linkages should
still be set so the ATV's are near 100% for the best servo
resolution (smoothest, most proportional movement).
High Rate
ELEVATOR: 5/16" [8mm] up
3/8" [9.5mm] down 5/16" [8mm] down
RUDDER: 2-1/8" [54mm] right 1-1/2" [38mm] right
2-1/8" [54mm] left
AILERONS: 3/8" [9.5mm] up
3/8" [9.5mm] down 1/4" [6.5mm] down
Note: If your radio does not have dual rates, set the
control surfaces to move between the high rate and low
rate throws.
Note: The balance and control throws for the Extra 300
ARF have been extensively tested. We are confident
that they represent the settings at which the Extra 300
ARF flies best. Please set up your model to the
specifications listed above. If, after you become
comfortable with your Extra 300 ARF, you would like to
adjust the throws to suit your tastes, that's fine. Too
much throw can force the plane into a snap roll, so
remember, "more is not better."

PREFLIGHT

Identify Your Model

No matter if you fly at an AMA sanctioned R/C club site or if
you fly somewhere on your own, you should always have
your name, address, telephone number and AMA number
on or inside your model. It is required at all AMA R/C club
flying sites and AMA sanctioned flying events. Write your
full name, address, telephone number and AMA number on
a small card or a piece of paper and securely tape it inside
your model.

Charge Your Batteries

Follow the battery charging procedures in your radio
instruction manual. You should always charge your
transmitter and receiver batteries the night before you go
flying, and at other times as recommended by the radio
manufacturer.
20
Low Rate
1/4" [6.5mm] up
1-1/2" [38mm] left
1/4" [6.5mm] up