I'm glad to know its clear as mud.

Began to wonder where 1/8A started and ended and 1/2A started & ended because I thought 1/2A stopped at .05 and that .051 started the A class. And then you see 1/4th scale cub, or a 30%Extra and I wondered "30% Extra?...What class would that be in?" sort of thing. Reckon I always thought of "scale" as being true to the original aircraft plans, only scaled down for modeling purposes but dimesionally and proportionally, and wing loading accurate; Not just "made to look like" the real thing.

Thanks the replies!

Clay