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David Ullman

David Ullman
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Vortex Generators for Cooling

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

Hear the Hum?

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

Electric Dreams Prevail at the CAFE Aircraft Symposium

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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

Building the 750SD XTREME: Part 7

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Mounting pressures, seating flexibility.

Case for the Lyconsaur

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Last time we met, the question was if the engines of the future had...

Maintenance Matters

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Building Aeroquip hoses.

Checkpoints

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Never too experienced to learn.