Sep 20, 2014 #3 Mangoes Participating member Location Greater Toronto Area Physics and biology restrict a metabolic engine from producing flight in a body greater than 25lbs. (according to podcasts I've listened to) Human powered helicopter flight is a significant engineering accomplishment. It took 33 years for someone to win the Sikorsky HPH Competition. http://en.wikipedia.org/wiki/Igor_I._Sikorsky_Human_Powered_Helicopter_Competition
Physics and biology restrict a metabolic engine from producing flight in a body greater than 25lbs. (according to podcasts I've listened to) Human powered helicopter flight is a significant engineering accomplishment. It took 33 years for someone to win the Sikorsky HPH Competition. http://en.wikipedia.org/wiki/Igor_I._Sikorsky_Human_Powered_Helicopter_Competition
Sep 21, 2014 #4 treehumper Carpal tunnel level member Location Ridgefield, NJ UofT Skule of Engineering? Cool
Sep 21, 2014 #5 BRT Participating member Location VA Very neat Mangoes--thanks for posting. Incredible how long those blades are!