ORIGINAL: typhoonfury
you might want to call bob holman and ask him about those extra ribs. i've looked at the plans and the confusing area to me is the retract area, i have the typhoon plans and they kind of lay it all out for you on the retracts, they dont on the corsair. lightening holes on metal are supposed to ( circular holes) increase strenth, i dont know about balsa. taylors are supposed to build lighter, you may not need them.
Good idea, I'll call Bob.
The retract area is confusing to me too. I think I may get the retracts before I begin that section. I've not decided which ones to get. I've looked at Robart, Sierra, and Century jet and have read many posts but still have not decided. I've emailed Earl Aune and Bob to get their opinions. What have you decided on?
I will need to put holes in the ribs anyway, for various things like wires, rods, etc so I wanted to see what others have done. Since balsa is already light, the holes are more for strength as you noted.