-3 wings on -2 airframe
Is it legal to put -3 wings on a -2 or even a -1 ?, and if so what kind of paper work is needed, STC, 337 ? and dose anyone have copy's.
@1929travelairgmail-com I know there's a letter from the CAA from 1958 that surfaced stating it can be done. I can't attach it for some reason. Seems like attachments and links aren't working. There are field approvals for 25 gal tanks in -2 wings and I've seen one for -3 wings on a small tail, but for the life of me I can't find it. If the letter alone won't suffice, I'd think a combination of the letter and previous field approvals could be enough for a field approval.