Model type: Semiscale rubber-powered
Wingspan: 26-1/16 inches
Wing area: 80 square inches
(less rubber motor): 39 grams
Rubber motor: 10 grams of 1/8-inch wide
FAI Tan Supper Sport, four
Propeller: Yellow Czech Ikara P- 30
9.5-inch diameter, cut down
to 9 inches and scraped
thin, until it weighed roughly
• Great vacuum-formed cowling and spinner.
• Beautiful decals.
• Extremely light sheet wood.
• Accurate laser cutting.
• Outstanding building plans and instructions.
• Some strip wood is too heavy.
• Propeller provided is too small for optimum
• Wing decals didn’t stick well.
AT A GLANCE ...
and adhered adequately.
The wing numbers wrinkled and
puffed up, so I opted to abandon those
decals and simply cut the numbers out
of black MonoKote.
The meager, short, rubber strip
provided in the kit would not have
been adequate for flights of more than
20-30 seconds. I knew this model could
easily take a motor of two to three
times the hook-to-peg length, so I
installed a four-strand, 1/8-inch FAI Tan
Super Sport motor that weighed 10
grams and was roughly 30 inches long.
This would enable maximum winds of
approximately 2,000 and flights in the
90- to 100-second range.
Because I used a relatively large,
heavy plastic propeller, I thought my
model might turn out slightly nose-heavy. I was right.
With the motor installed, it balanced
at roughly 30% of the wing chord (my
calculated CG was 50%).
My model required
gram of tail weight. Not bad.
Time to fly! I added roughly 1/16
inch of washin (TE higher than LE)
on each wingtip using a heat gun on
low setting—careful, this is a tissue-covered model. The rudder/fin was set
straight and incidence was added to the
horizontal stabilizer until a floating glide
As expected, the model yawed
slightly right in the glide because of the
gyroscopic forces on the freewheeling
The first power tests revealed no
surprises. The model needed roughly 1°
each of downthrust and right thrust to
achieve a wide right climbing turn on
As torque increases with more winds,
it might need an additional 1° of right
thrust to prevent it from straightening or
yawing left. The desired flight path for
high wings is a right climb and cruise.
The glide turn can be in either direction.
I enjoyed my Guillow’s PC- 6 build.
The laser cutting was crisp and complete. The balsa
sheet was the ideal density of 5. 9 pounds per cubic foot.
Light wing loading is critical in small FF models.
The author had some
trouble with these
large wing decals.
The substrate of
seemed too porous
for best adhesion. The
workaround was to cut
It’s a well-engineered design and the
kit features excellent balsa, decals,
and instructions. With my few minor
modifications, I expect my PC- 6 to be a
40 New Salem St.
Wakefield MA 01880
FAI Model Supply
Campbell’s Custom Kits
69 Model Aviation OC TOBER 2013 www.ModelAviation.com