A lot of Rutan planes and derivatives call for polyurethane (in the
fuselage). My understanding is that starting around 1990, builders
have used urethane instead of polyurethane (in Long EZs, etc.). Has
this scenario taken place with Quickie Q1 s... ? Since most Q1s were
built before 1995, would it be safe to say almost all Q1s have
polyurethane...?