Asso X jewel.......er...millenium master....um...I mean Blackshape Prime....well all those are correct but most correct is Blackshape Prime. The design started out as the Asso X jewel in wood (my favorite of course), then a composite derivative evolved called the millenium master, whose molds were later sold to Blackshape and has finally become the Blackshape Prime. I've always been a huge fan of this Vidor design. Super performance on a 100hp motor. http://www.blackshapeaircraft.com/ http://www.x-aviation.com/catalog/blackshape-prime-p-95.html