A reader asks if he can use his Experimental/Amateur-Built aircraft for instruction. DAR Mel Asberry’s answer: It’s not a problem, but charging for transition training of a non-owner pilot requires a specific operational exemption.
Drill holes without a template using a transfer, get around an airport with a foldable mobility scooter, auto-darkening smart welding helmets are introduced, and relays can save your avionics.