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David Ullman

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Vortex Generators for Cooling

A simple fix reduced CHTs in a Velocity by 55 degrees. By David G. Ullman.

Hear the Hum?

Whats the buzz? David Ullman looks at the past, present and future of the electric airplane.

Electric Dreams Prevail at the CAFE Aircraft Symposium

Among the topics covered at the third annual Electric Aircraft Symposium were climate science, battery and motor technology, and aircraft designs, both real and imagined.

In Case You Missed it

Magneto Timing

Checking your magneto timing is part of every yearly condition inspection, but beyond that...
video

GlaStar Walkaround with Amy White

New GlaStar owner Amy White describes what it's like to own and fly this...

AeroConversions AeroVee Turns 20

The peoples’ engine still fills a niche.

Best Practices – Solid Rivets

Solid rivet selection and installation.