Someone is serious about cooling. We assume these lead to blast tubes. Just how big is the alternator on this RV?
In Case You Missed It
Metal Magic: Driving and Squeezing Countersunk Rivets
Paul Dye explains how to both drive and squeeze flush rivets and offers handy tips to getting good, repeatable results.
All Over the Map
When the FAA inspector or DAR (Designated Airworthiness Representative) arrives to award you your...
Ask the DAR
When can an ELSA be used commercially? Can an E/AB aircraft be certificated without a transponder?
Aero ‘lectrics
Jim Weir presses the venerable LM317 variable voltage regulator (plus a few other parts) into service as a way to juice up a discharged battery.