Greg’s 17-year-old Sig Kadet LT- 25 was updated with LiPo batteries and
a Castle Creations ESC to replace the ESC with sensors from the original
setup. The MaxCim motor soldiers on!
Horizon Hobby for a fraction of what
it would cost to replace the quadcopter
with the new version.
I ordered the parts and it took less
than an hour to do the complete
upgrade. I was able to update the
firmware on my control board, so I
didn’t order the version 3.0 board. The
lesson here is to check to see if your
hardware/firmware can be updated and
to compare costs.
Don’t Toss Your Sensored
I have a kit-built Sig Kadet LT- 25
airplane that I constructed when it was
first released approximately 17 years
ago. At the time, the MaxCim motor/
ESC combination was one of the best
ones on the market, and I converted
my LT- 25 to electric power using this
system. It was expensive and incredibly
As the years went by, the original
14-cell NiCd battery pack was replaced
with a higher-capacity 5S LiPo battery
pack. The ESC eventually died, and
because the motor industry had
transitioned from sensored motors to
sensorless, I had a decision to make.
The ESC was no longer available, so
I replaced it with a sensorless Castle
Creations Phoenix Edge ESC. This
simply required some experimentation
to find the correct ESC settings to
make the motor happy, but it runs as
well as it ever did.
Why toss a great motor even if it has
sensors? Sensors are no longer required,
but they’re not hurting anything either.
Wing Ding Resurrected!
Many years ago, I had the honor and
pleasure of getting to know Les Garber
during the Nats in Muncie, Indiana.
One evening, after competition ended,
he was flying his Wing Ding that was
featured in the November 2001 issue
of Model Aviation, and offered me the
sticks. I don’t like to fly other people’s
airplanes, but I couldn’t resist.
It was wonderful and graceful and
weird and funny and … well, you get
the idea. I felt like a kid with that
airplane. A couple of weeks after I got
home, a box arrived and inside was Les’
Wing Ding. He sent it to me as a gift
because I enjoyed it so much. To this
92 Model Aviation JUNE 2015 www.ModelAviation.com