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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

Down To Earth

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The founders of the Solar Impulse Project build on their successes with a planned around-the-world flight and a stopover at the Paris Air Show. By Amy Laboda.

Kit Stuff

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Flight Review: Falken Avionics iPad-based EFIS

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By now, the Apple iPad has established itself as a strong utility player in many aircraft, most often running as a so-called electronic flight bag (EFB) to display moving maps, charts, weather and traffic. But Falken Avionics’ Flight View system has a different take on putting Apple’s tablet to use—as a primary instrument. 

Flight Review: Power Promises

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Marc Cook flies two GlaStar Sportsman 2+2s with two different engines, and a winner emerges. More power!