51% has nothing to do with the issuance of a repairman certificate or
determining who is the builder.

I dont believe that that is correct either.
if you fail to establish that you are the builder of 51% of the
aircraft then you wont be eligible for the maint authority.

Stealth Pilot

if that is true, then how do schools, flying clubs, eaa chapter, and
2 or 3 friends getting together to build submit the paper work?
Lou