ORIGINAL: can773
Who is going to design airframes specifically for AMA Sportsman thru Masters? Would it not make sense for a producer of a pattern kit, to design it to be able to be legal worldwide for a larger sales base? In that case many would fly it under FAI rules which remain at 5kg, so it would make sense to design for that rule set...no?
Chad’s observation hits the preverbal nail directly on the head in my opinion.