In Case You Missed It
Old School Solution
It doesn’t seem that long ago, but maybe it was, that the essence of a sport airplane was a biplane.
Aero ‘lectrics
Jim Weir continues the project he started last month as he attempts to bring a little intermittence to a homemade tone generator so that it will go beep, beep instead of one long beeeeeeeeep when alerting you to an out-of-norm condition.