I have not double checked these numbers, so some of them may be off. High point of foil should be 15% to 20% back from leading edge. The curve should break sharply after the high point, and run almost flat to the trailing edge. Avoid a fat, gradual taper. Leading edge should be medium thin, and rounded off to a blunt round. Greenough Stage 4 Coordinates Across Up 0” 0” (Front of base) .5” 1 13/16” 1” 1 3/4" 1.5” 2 23/32” 2” 3 5/8” 2.5” 4 7/16” 3” 5 5/32” 3.5” 5 7/8” 4” 6 7/16” 4.5” 6 15/16” 4 5/8” 1.75”, 7 1/8” 5” 0” (Back of base), 3 13/16”, 7 3/8” 5.5” 5”, 7 23/32” 6” 5 13/16”, 8 1/8” 6.5” 6 13/32”, 8 3/8” 7” 7”, 8 5/8” 7.5” 7 13/32”, 8 25/32” 8” 7 7/32”, 8 15/16” 8.5” 8 5/32”, 9” 9” 8.5”, 9” 9 3/16” 8 25/32” (Back of tip)
OK, these numbers aren’t legible as they are displayed, and I don’t know how to get them line up properly without them rearranging themselves in the manner you see above.
I can’t get the coordinate to space apart on the board, so post your e-mail here if you want me to send you the numbers.
I can’t get the coordinate to space apart on the board, so post your > e-mail here if you want me to send you the numbers. Hey Paul, I’ll give it a shot if you send me the numbers, thanks, Keith
Paul, could you please forward the fin coordinates to me too? Thanks.
A photo of the Stage 4 will be in the resource section in a few days. (#472)