organized club, and it knows how to
have fun. I crashed one of the club’s
recent events (don’t say crash!) and
found out what a jolly bunch they are.
A local hobby supplier offered the use
of a big warehouse, so the club held a
barbecue and Indoor FF contest.
These fliers know all about RC, but
for a change they built and flew Indoor
These pilots can literally fly circles
around me with their gorgeous RC Scale
airplanes, but for once I was able to help
out. A few other FF pilots were there
also, and we worked with the good-natured RC pilots until most of the little
FF airplanes were doing well.
Several times I heard comments such
as, “You mean that little adjustment
made such a difference?” That’s a great
payoff, and the experience might come
in handy later with some big RC model
Drill Out? Look Out!
Jeff Francis flies big RC models, and
had a near-miss propeller incident. He
kindly allowed me to share his story. Jeff
“Dave, I had a mishap with a prop
that could have turned out much worse.
My J- 3 Cub has a 26cc gas engine that
requires a 16 x 8 prop, with a 6mm hole
in the middle. It is held to the engine
with two 4mm bolts.
“I recently completed a Decathlon
with a Saito .180 engine. The Saito
can also use a 16 x 8 prop, held on
conventionally with a locknut on the
crankshaft, but it requires a 10mm hole
in the prop hub. I mistakenly thought I
could use a prop that had already been
used on the gas engine by increasing the
diameter of the middle hole from 6mm
“Apparently, the new hole, along with
the two smaller holes from the previous
mounting, weakened the hub too much.
When I opened the throttle on the new
plane, the prop broke apart. Half [of]
the prop went straight into the ground
almost to the hub. The other half went
98 Model Aviation DECEMBER 2015
SAFETY COMES FIRST