Anyway, the HPV that went across the english channel was powered by at least 0.4 hp from an amature. My estimate is I can put out at least 0.33 hp. So those are my numbers. It took him almost 3 hours, too.
I got to get this thing light, and get the drag down. I think lower aspect ratio gets it lighter, and wingtip fences helps with tip drag. I know I can do better than the one that amature rode. Just a matter of if it is good enough to be worth building.
Needs to climb at least 1 foot per second, lifting a total mass of at least 200 pounds. How many watts is that? 1/3 M, 100kg, 10m/s2 = 300 watts?
Plus I need 1/3 hp just to fly it, so another 250. So 550 watts to fly and climb. I wonder how long an amature like me can keep that up for. 1 minute = 60 feet climbed. 2 hours to get to 6000 feet. Maybe Lance Armstrong could do 550 watts for 2 hours. That is a long time to get up high. And circling would cause lost lift. 2 hours at 10 mph = 20 miles travelled.
Yep. I think HPVs can be done, but you'd need like 600 watts maintained for 2 hours. What do you guys think? Just make that amature cyclist's plane more efficient? Or am I describing a death sentence?