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Gabriel DeVault

Gabriel DeVault
1 POSTS 2 COMMENTS
Gabriel DeVault has built and flown two of his own electric aircraft and assisted in another dozen or so electric aircraft efforts. A founding team member of Zero Motorcycles, he was head of R&D for about five years and used a Zero motor, battery package, controller and engine monitor in his Electric Xenos. He also designed the electric powerplant for the Aerolite EV-103 ultralight.

Electric Airplane Fundamentals

23
Hi, my name is Gabe and I’m an unabashed electric airplane nerd. I have built and flown two of my own electric aircraft, and...

In Case You Missed It

Go Around

5
I just returned from my annual airline recurrent AQP, or Advanced Qualification Program, training....

Wind Tunnel

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The author discusses the theory and effect of constant-speed propellers on piston-engine airplane performance, and compares fixed-pitch versus constant-speed props, effect on thrust HP and propulsion, the comprises involved in choosing a prop, how props perform in various conditions and phases of flight, how variable-pitch props work, and why a constant-speed prop is the best choice for high-performance aircraft.
The most difficult compromises live in the middle of the performance envelope, while the easiest decisions are found at each end of the spectrum. This VW installation emphasizes economy over performance, so a prop gearbox would be an obvious complication.

Compromises

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Never one to revel in the practical, recently I found myself expounding to a colleague on why the general aviation world moves at 2700 rpm.

Letters

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Survey ResultsEarlier this year, we asked our readers to tell us what they thought...