Sean Breheny cornell.edu> writes: > All I can say is wow! How did he wind that motor coil?! A more interesting question woud be how come a crude motor with such a huge gap and air cored coils can output enough power for flight?! Also it works open loop and 2-phase driven as far as I can see, which implies some kind of ramping up the speed. -- Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist