A stick-and-tissue Consolidated PBY
Catalina with freewheeling propellers
and functional landing gear. It can
be disassembled and packed inside
a PC keyboard box. David Aronstein
designed, built, and gave this to his
Below: Grandson Jesse Aronstein flies
a walkalong World War I Spad biplane
at Walter Beech Hall in Wichita KS.
Photo taken by his grandfather, Jesse
points for those just starting out. He told
“For successful flying, the pilot has to
move along at the same average speed as
the model, with the ‘slope’ (the board)
positioned close to vertical somewhere
under the model behind the wing.
The fore and aft position of the board
controls the pitch (nose up, nose down)
of the model, just as the elevator does in
more conventional flying.
“If the board moves forward
relative to the model, the nose
goes up and the model climbs
and slows down. If the board
moves aft, the nose goes down
and the model speeds up.
The pilot uses [the] fore/aft
position of the board in the
same way that the elevator
control and trim are used.
“The model is light and
quick to respond to slight