As I read the "International class rules" even the F16 would now qualify for official ISAF International status!! Apart from we are a strange bunch of owners and I suspect the class would reject the "honour"..
On legal terms the F16 class satisfied those requirements first in 2005. And we have indeed thanked for the honour thus far. When I was still chairman the main reasons for this was the application fee (quite steep) and the fact that the class rules had to be totally rewritten to be more reflective of an unreadable bureaucratic document were all rights for changing the class rules were signed over to some obscure ISAF committee. Yeah ! as if !
Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands