This is a two piece spinner for a Howard DGA-3 Pete RC airplane. Thought it will work on any 200w range motor with a .25in shaft diameter prop adapter. It's designed around a Master Airscrew 6x4 prop. It's held together by two M3x8mm socket head cap screws.I am planning on fiddling with the thickness to get the weight down. I will also play with cooling holes. Stay tuned.Just print the parts out. They turn out well when printed pointing up.Use two M3 x ~8mm screws to hold it together. UPDATE: I revised the spinner base and top. They are both now shell designs. I also included cooling holes in the top and bottom parts. I haven't had a chance to weight the original against the new version.Update 12-20-12: I took some better pictures of the latest version of the spinner (V3/v6) and weighed it. total of 9 gr w/o the screws. Note you probably want to use v3/v6.