The guys over at flitetest have a great series on building airplanes around a swappable fuselage. The basic idea is to house the receiver, esc, and battery in a fuselage that can be easily attached and detached to different wing setups, essentially giving you different planes without having to duplicate all the same receiver/ESC in each. It’s a neat idea. Today, I noticed this video from Busybee TV, showing his own version of the swappable with a cute twist. He built it significantly smaller (my guess is about 60% as large as the flitetest version) which means that the wing loading is significantly lower, and you can hold the wings in place with magnets. Oh, and it costs about $50. He demonstrates to mini-airplane wingsets. Build videos are supposed to be coming soon. Check it out: