Mike Hausner’s Depron foam-based Torpedo.
Bob Aberle displays his rendition of the old FF Civy Hearse model.
John Krouse applied his touch to this Marston
Ptero Works Pterodactyl.
A popular material for small-field models is sheet foam. Sheet foam is lightweight, and in most cases,
there is no grain to worry about. The
features of sheet foam were embraced
by modeler Mike Hausner. Inspired by
the Coyote-E construction article in the
October 2014 issue of Model Aviation,
Mike developed a slick design he calls
The Torpedo has evolved throughout
several versions. The most recent version
is the model in the photo. Construction
is Depron foam.
Sporting a 393/4-inch wingspan
and a flying weight of 16. 5 ounces,
the Torpedo has proven to be an
excellent flier. The power setup is a
Grayson Hobby 2,200 Kv motor (see
the “Sources” listing) turning a 6 x 4
propeller. Energy is delivered by a 2,200
mAh LiPo battery pack.
Very nice work, Mike. Watch for a
construction article in Model Aviation
about the Torpedo, perhaps as early as
the January issue.
Vintage FF to RC Small-Field Flier
In the early days of Free Flight (FF)
competition, a well-known model
called the Civy Boy was popular. The
designer, Paul Gilliam, also developed
a version of the Civy Boy for an event
that required the model to lift a weight
that was shaped like a squared-off pilot.
The load-lifting version was called the
Civy Hearse. It had a wider fuselage for
the pilot figure. The wider fuselage and
overall features of the airplane are nearly
perfect for conversion of the design to a
current-day, small-field model.
Model Aviation “Frequently Asked
Questions” columnist and AMA Model
Aviation Hall of
Fame member, Bob
Aberle, has more
airplane designs than
I could possibly list.
His latest is a nice
rendition of the
Bob’s model has
a 41-inch wingspan.
Its flying weight
is 15. 3 ounces.
World (see the “Sources” list).