prior 67V Direct Maintenance multiple century? aviation specialist, A&P IA - pilot? aided in setting up several repair stations built a few aircraft (airplanes and helicopter) currently restoring a 1967 pre production F28 (A) Enstrom, and annualling a B2B orphan, I would like to make a few STCs yet lack a donor aircraft or the funds to do it. I use to fabricate race cars with my dad.