Originally Posted by
Big Stikflyer
I've never built a Dynaflite Mustang of any size but I did build a Jemco FS Mustang 40 back around 83. I thought the wing seemed a little weak and flexed to much for my liking. I sheeted the top front half and the center section of the wing. I then used a spray foam to fill the pockets in front of the main spar. Once it's dry it's very light and makes the wing really strong. It's also easy to do. I didn't make any other mods and the plane gave my many hours of pleasure flying it.
This is a great idea and I have never tried it or seen the results. I will look on Youtube and see if I can find a video on the subject. I can see where the end result would be as strong as a D box.