12/17/2022 0 Comments Peter copter![]() ![]() Nothing he is doing is all that unusual, sure with bigger budget you’d do flowsims and structural stress modelling in the computer for months before building anything and then probably stress test a model or two. Insert your own risk affirming saying in the comments below □Īll engineering eventually gets to the check our assumptions phase. ![]() Is it a waste of life? I don’t know, who’s to say…what do you think?īut we all know about the various sayings, ” better to risk it doing something great, than to stay home, scared & afraid”. Peter copter full size#Yes he’ll probably die sometime because of his crude RC engineering adapted to full size aircraft… just the same as many people died in the early 1900s to further the cause of Aviation. To me it encapsulated the best of humanity, amazing creativity and boldness of spirit. I literally cried when I watched him take off in that first bi plane and cruise around. I never thought I’d live long enough to see a man fly with jet engines on his back or on his feet or a man in a lawn chair with 12 electric motors or etc etc…Īnd here is Peter building multiple different flying aircraft, in a similar way that early pioneers of Air flight would have done in 1912. But I believe we’re living in the second golden age of personal Aviation these days. I find Peters builds to be very inspirational □□ – and a bit scary at the same time. Posted in Transportation Hacks Tagged aviation, electric flight, peter sripol, ultralight Post navigation But we aren’t aviation experts, so we won’t pass final judgement. Although he does extensive weight-loading and thrust testing before taking to the air, adding tail weight to piloted aircraft by simply taping a water bottle to the tail just felt wrong. By moving to a three bladed propeller with a higher pitch angle, and increasing the length of the wings for more lift, was able to cruise comfortably at about 30 MPH or 48 km/h.Īlthough this aircraft definitely performed better than ’s previous ultralight builds, piloting something like this isn’t for the faint of heart. It can be compared to driving a car only in first gear. On the first test he used a two-bladed propeller, with a small pitch angle which required full throttle to keep flying. It is powered by a single large brushless electric motor borrowed from the OpenPPG project. Interestingly he kept the rudder controls on pedals instead of moving it to the stick, so the stick only controls the elevator. This gives the aircraft passive stability, because as it rolls to a side, the upper wing’s lift decreases and the lower wing’s lift increases, forcing the plane to correct itself. For roll stabilization he angled up the wings noticeably, adding dihedral. To keep the plane simple, he got rid of ailerons entirely. For a taste of what’s going on here, the wings have aluminum tube spars and are made of hot-wire-cut styrofoam sections. He recently flew the fourth ultralight, which he designed and built himself. Peter Sripol really likes building gravity defying death traps. ![]()
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