Home Authors Posts by David Ullman

David Ullman

David Ullman
3 POSTS 0 COMMENTS

Vortex Generators for Cooling

3
A simple fix reduced CHTs in a Velocity by 55 degrees. By David G. Ullman.

Hear the Hum?

0
Whats the buzz? David Ullman looks at the past, present and future of the electric airplane.

Electric Dreams Prevail at the CAFE Aircraft Symposium

0
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

Archive: January 2007

0
Our coverage for the 2006 Reno Air Races appeared in the January issue the...

In Search of Speed

2
Looking for the perfect next project, part 1.

Spread Those Sheets

0
I'm kind of loose with my engineering and teaching. I don't have a lot of hard-and-fast rules.

Full of Hot Air

0
A custom-built ultralight hot air balloon that fits in an RV-7.