Autogyro
Always wanted to build an autogyro, and finally built and flew one . This thread has snaps and writeup on the build. This is based on the “twirl” of which there is a lot of info on the web.. here is the link http://my.pclink.com/~dfritzke/twirl.pdf. There are some changes to the materials used vis-à-vis the plan, and they are fine so long as AUW (@200) is kept under check and structural integrity is not compromised. Mine was made out of 5mm biofoam , and CF scraps which I had. The plan is fairly simple. The parts are cut out of 5mm biofoam.. I have used a 3mm cf rod in the fuse for strengthening the fuse along with the doublers at the nose end. Note the front end is cut at an angle which has the downthrust built it. Also below the wing mount I have glued in some scrap foam to have a bit more area for the wing to glued to. The undercarriage spring wire is fixed to a small block of wood I fixed it by bending the wire, tying it with stro...