David Ullman
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
Spinner Bulkhead Clocking
Spinner woes were the topic of midsummer musings on Van’s Air Force this year....
Light Up
When I first started construction on my RV-10 in 2007, old-school incandescent lights were...
Build It Better: For Want of a Nail
In aviation, one pin out of place can result in disaster. Details matter.
Take the Glare Out of That Glareshield
Many popular aircraft kits utilize a sheet of aluminum to form the glareshield—that “shelf”...