Oliver Sand built this
Volaré Products Ohka
No-Cal. Oliver is 15 and
excels at stick-and-tissue model building as
well as flying Duration
Above: Mike Fedor embeds two nylon
bolts into the fin on his Nostalgia Gas
models to make the fin removable.
Right: Nylon nuts are seated on thin
plywood plates in the stabilizer.
Removing the fin makes the model
easier to transport and store.
The breeze had stilled when he put
up his first official flight. It was 87
seconds—promising, but nothing great.
Sensing that the tired loop of 1/8-inch
rubber needed replaced to achieve a
higher climb, Bob changed to a slightly
shorter loop of fresh stock.
It was approximately 4: 45 when he
launched. The model briskly climbed
out, staying overhead. After 20 seconds
or so, it was obvious that it had flown
into a thermal. Bob lost sight of the
Ohka as it slowly climbed, but his timer,
Jim De Tar, as well as Mark Rzadca, were
using binoculars and still had the model
The aircraft had run out of turns. The
balsa propeller didn’t have a freewheeler
and was virtually stationary, but that
didn’t affect the Ohka as it slowly
circled, drifting slightly to the north.
A small group of modelers and
spectators had gathered. Bob heard Jim
call out “six minutes,” and so it went—
10 minutes, then 15. At 20 minutes,
the model, now back directly overhead,
was getting hard to see, even with
binoculars. Bob made the decision to
stop the watch. Jim pushed the button
at 20: 15.
Mark massaged his stiff neck. The
time was recorded as 1,302 seconds.
What an amazing surprise that was!
Bob’s only regret was the loss of a good
One can’t help but wonder how
long that model stayed aloft and where
it finally landed. Bob plans to build
another Ohka, this one from George’s
short kit sold by Volaré Products.
It appears that Jim Walston is no
longer able to sell or service his trackers
because he is in poor health. I spoke with
Mike at Wildlife Materials, Inc. (WMI),
the company that actually produces the
Walston transmitters and receivers.
WMI is now selling directly to the
modeling community. If you need a
new Walston tracker or a repair, call
Mike. His contact information is in
National Free Flight Society (NFFS)
A.A. Lidberg Model Plan Service
130 Model Aviation JANUARY 2016 www.ModelAviation.com