by trackwelder » Fri Oct 18, 2013 1:58 pm
If you wanted to make major changes, the wings could be folded, I would say you would have to pass on the leading edge flaps, You would have to line up the rear spar with the strut mounts and make clearance behind the rear spar carrythrough so that it would clear the wing, take a look at the Avid or Kitfoxes and you should be able to see how it is done. The spars could actually be made from tubing to make it easier the Pursang or fat Avid had a gross weight above the Buttercups and used 2 1/2 inch .063 to.085 6061 t6 aluminum, You wouldn't have a Buttercup when you were done, but you would have a plane. the 2 1/2 inch .063 with a 36 inch wood spar stiffener was able to take a load of up to 1500 lbs with a 6 g load, Just Aircrafts Highlander also Has a similar style spar and folding wing mechanism. I would love to get better pictures of their leading edge flaps because I would like to try and copy those wings for the Buttercup, I would be willing to make a second copy of the wings to try that.