Home Authors Posts by Donald J. Berk

Donald J. Berk

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Electra-Glider

5
Converting a Strojnik S2A motorglider from gas to electric power.

In Case You Missed it

Wind Tunnel

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This month Barnaby Wainfan turns his attention to the control system and how various aspects such as linkages, the elevator planform and tail aspect ratio, and trailing-edge treatments affect pitch control.

Oh Nuts!

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Well actually... "Oh nut!" What do you do when you drop a nut inside...

The Creative Homebuilder

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Make your own upright Cleco pliers.

Progress Report: Bits and Pieces of HOG

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OK, so we’ve got that 100-watt solar panel firmly bolted to the hangar roof....