Actually, 171 divides evenly into 3 groups of 57. Or 9 groups of 19. or 171 groups of 1...
Frank, I think your pylon struts look good. That bamboo end-grain sure looks odd, with its open cells, doesn't it? Interesting tile pattern, too, around that filler tube.
As to my camera shooting bigger pictures, I guess it took umbrage at your remarks...really, I don't know why they come out different sometimes.
Lessee, plywood under the wing for LO guides? I guess you mean under the raised tip..that's a very good idea, you could put several holes to make the leadout sweep adjustable. Wish I'd thought of that, now I have to butcher my wing to get that front guide out.
Maybe I'll try the Rit dye thing on my windscreen. What color, do you think? (No, this time yellow won't do...)
--Ray
--Ray