Donald J. Berk, Author at KITPLANES

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Electra-Glider

Donald J. Berk - May 17, 2019 5

Converting a Strojnik S2A motorglider from gas to electric power.

In Case You Missed It

Propeller Effects–Lateral Directional

Barnaby Wainfan - March 13, 2023 5

The propeller slipstream affects the aerodynamics of the airplane. A propeller accelerates air backward...

Light Stuff

Kitplanes - January 19, 2008 0

Columnist Dave Martin had the good fortune to be able to tour the new Rotax engine factory in Gunskirchen, Austria, and he offers a report on the trip including a side trip to Salzburgs Hangar-7.

Nothing Small About It

Tom Wilson - February 29, 2024 5

The Gweduck is a hero-class Experimental three decades in the making.

Aero ‘lectrics

Jim Weir - November 15, 2013 0

Flying the pattern.