look up the plans for the Moody Mooney. Very innovative, with a thick wing and a huge box beam out of 1/16 in. balsa. More work than I could imagine when I was a kid.
Phil,
Though the "Mooney" looks like an extremely interesting project, that "box spar" construction looks daunting to me, and I'm not a kid.
The small plans are difficult to read, so actual construction of the "box spar" is not clear. Perhaps a full scale plan would make it obvious, but it looks like a very tricky build, that would require extreme care and workmanship.
Wouldn't it be interesting to get Al Rabe's opinion on just how viable a stunt ship the "Mooney" would make. It certainly would be unique, and not easily confused with any other design.
Cheers.
Warren Wagner