Pre-flight – Great Planes Super Decathlon 40 Kit - GPMA0185 User Manual

Page 38

Advertising
background image

Prather "Spinner Weight'' (available in assorted weights, up

to 2 ounces), or by gluing strips of lead onto F-l under the
engine. Tail weight may be added by using Prather "stick-
on" lead weights, and later if the balance proves to be OK you
can open the fuse bottom and glue these in permanently.

FINAL HOOKUPS AND CHECKS

D 1. Make sure the control surfaces move in the proper

direction as illustrated in the following sketches;

F O U R - C H A N N E L SETUP

TRANSMITTER CONTROL SURFACE

STICK MOVEMENTS MOVEMENTS

ELEVATOR MOVES UP

RIGHT AILERON MOVES UP
LEFT AILERON MOVES DOWN

RUDDER MOVES RIGHT

CARBURETOR WIDE OPEN

D 2. Adjust your pushrod hookups as necessary to pro-

vide the proper control surface movements as listed on Page
29.

NOTE: These control surface "throws" are
approximate and provide a good starting point for the
first flights with your Super Decathlon 40. You may
wish to change the throws slightly to provide the
smoothness or quickness that you prefer.

D 3. Check for wing twist as follows:

NOTE: Even if you have built your wing on a perfectly

flat surface and used utmost care. it is possible that your
wing may have a twist due to uneven shrinking of the
covering material. You must check for this condition
and correct it before the first flight.

If you do not own a wing incidence meter, we recommend
that you purchase one from your local hobby dealer or borrow
one from another modeler. With the wing mounted to the
fuselage, use the incidence meter to check the angle of your
wing at the root and at the tips. If the incidence meter reveals
a wing twist of more than 1/4 degree, you must grasp the wing

at the tip and twist it slightly, while reheating the covering
material. Keep checking, twisting and reheating until the
wing twist is removed. NOTE: If you have corrected a wing
twist by this method, you should periodically re-check to
make sure the correction has held.

D 4. Following is a checklist of some other items you'll

want to consider before your first flight with this model:

D Record weight
D Check all screws, use Loctite
D Adjust tailgear for straight roll
D Adjust throttle pushrod linkage
D Take photographs!
D Balance propeller & spinner
D Oil axles
D Place AMA I.D. sticker inside

PRE-FLIGHT

CHARGE THE BATTERIES

Follow the battery charging procedures in your radio instruc-
tion 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.

FIND A SAFE PLACE TO FLY

The best place to fly your R/C model is an AMA

(Academy of Model Aeronautics) chartered club field. Ask
your hobby shop dealer if there is such a club in your area and

join. Club fields are set up for R/C flying which makes your

outing safer and more enjoyable. The AMA can also tell you
the name of a club in your area. We recommend that you join
AMA and a local club so you can have a safe place to fly and

38

Advertising