I bought a modified Twister at an RC swap meet which soon crashed when the Enya 29 quit overhead. It flew well enough to go for a rebuild so to save time, ordered a wing kit from SIG. You all know how that goes; it cost me more time! All the wood came in at 14-16lbs/in* so I had to sand all the ribs down to ~.070" and pitched the rest (I'm not ragging on Sig, just saying what I got. I'll know to discuss it with them next time).

         Read all of Ted F.'s articles and drawings on his Fancherized Twister and wonder if any of the mods have been updated. In particular, I see on the drawings rounded trailing edges on the wing and elevator. Some of the latest advice on this forum strongly recommends square trailing edges.

         Also to save weight (but mostly out of laziness) I'm leaving off the half ribs. Covering will be Micafilm so there won't be much sagging between the ribs.

         And I'm leaving off the balsa tripler so I'll have access to the engine bearers to try different engines. My version of reinforcing the root/fuselage joint with fibreglass and epoxy in lieu of the tripler is shown in the photos below. The profiles I build hold up to vibrations quite well and last using this technique.

         I've built a Brett style bellcrank for this wing. It's been installed as if it were the standard bellcrank/wire pushrod system. With all its complexity, it's being buried with no access for adjustment or maintenance is troublsome to me. Move it beyond the fuselage next time with a hatch? External controls?

         Ara

      Chris

        It's doesn't show in the pictures that the tail survived the crash, no point in rebuilding it. So it will be untapered flaps, as recommended for stiffness with square TE and airfoiled stab/elevator.

      Ara