BY THE MODEL AIRPLANE NEWS CREW | PHOTOS BY RONALD SUCHIU
The F- 110
The development of the “Widowmaker”
Abe Klassen displays the Klassen scale xhaust system, which is included in the price for a 22.5% or 25% scale model.
This is the first inline 4-cylinder engine
designed specifically to suit the needs
of the serious large-scale WW II fighter
enthusiast. Turbo cooling makes it
perfect for tight-fitting cowls.
The Klassen engine has been thoroughly
bench run and tested.
The designer of this amazing piece of model engineering is Abe Klassen, a self-employed and proud business owner locatedjusta fewminutesout-
side of Windsor, Ontario. For many years,
Abe worked as a fabricator and industrial
designer/engineer. His lifelong dream has
been to develop and build very high-qual-
ity miniature engines. Over the years, Abe
made various engines of all sizes. Luckily
for the RC community, Abe got hooked
on radio control and fell head over heels
in love for the glamorous WW II fighters
like the Mustang and the P- 40. As a profes-
sional artist, I am also proud to say that I’ve
have had some input for the aesthetic value
of this engine. Abe is now
the full-time designer/pro-
ducer/manufacturer of his RC
fighter engine called the Klas-
sen F- 110 “Widowmaker.”
The engine is has a dis-
placement of 110cc and is
intended for 35- to 55-pound
airplanes and it has an output of about 13
horsepower at 8,500rpm. It is an inline
design with four cylinders and runs on
gasoline. It weighs in at 11 pounds with
its scale exhaust stacks.
engine mount with machined aluminum
standoffs, mounting template, spark plugs,
throttle arm extension, a display stand,
and mounting instructions.