Storing model memory on an SD card, when applicable, is a safety measure that should be
user a way to store and back up his
or her system. Today, many computer
radios use SD cards to store and transfer
information from one transmitter to
another. Other radios use a trainer cord,
utilizing each radio’s internal memory
rather than an external memory source.
Radio manufacturers are realizing
the need to transfer between different
types of radios. For Spektrum radios, for
example, pilots can transfer between the
DX18 and the DX9. Both transmitters
use an SD card that allows the user
to copy or transfer models to another
DX18 or DX9 transmitter. The only
limitations between the two are a few
features and the number of channels.
The Futaba T14SG can use the model
data of a Futaba T8FGS with an SD
card, but the T14SG data cannot be
used by the T8SG.
No matter what type of memory
transfer process is used, if one has
two identical transmitters, ensure that
both systems have the aircraft files
for the competition airplane before
All gas-powered aircraft vibrate,
which takes a toll on the airframe and
all components, so spares are a must on
competition day! These spare items can
be as simple as a few cowling bolts that
may vibrate loose during flight, but you
should also bring a spare muffler for a
single-cylinder gas-powered aircraft or
two mufflers if you are using a twin-cylinder engine on your aircraft.
If you are using a canister exhaust
system or something similar, you should
bring spare headers and spare gaskets.
You can’t predict when a muffler or a
header may break, but bringing a spare
will ensure that you can continue flying
during the competition.
Most of today’s gasoline engines
feature either a Walbro or Tillotson
carburetor, and both have a pump with
two needle valves and a third screw,
which is an idle-stop adjustment. The
121 Model Aviation APRIL 2014