We have 2 Rascal .40's in our club, and neither guy has glued the wings together. I was thinking that if it were mine, I'd glue 'em, but so far, they have held up fine w/o gluing. Niether one of these guys is what you'd call an aerobatic flyer, but they have really stressed 'em I'll tell ya! And, you'd be surprised at how many manuvers you can do with a Rascal. I've done snaps, cuban 8's, inverted flight, knife edge, and really tight inside loops, and (like I said) so far, so good...P.S. one of 'em has been flying for over a year, w/ a .46 in it...