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Man Supposedly Flies With Custom-Built Bird Wings

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161–164 of 164 posts

Re: Man Supposedly Flies With Custom-Built Bird Wings

#161
I initially thought it was real but after all the negative posts I have looked at the video closely. The GoPro camera take of the landing is what gives it away. Note how low the camera goes next to the ground, while we see the pilot always standing as he lands it. The flight was probably filmed with an RC and that is why see the camera go so low as it lands. But whether this is fake or not, it's irrelevant. This is a great idea and with the proper brains behind it, one should be able to make it work.

Re: Man Supposedly Flies With Custom-Built Bird Wings

#162
post #48

I really wish this were real. The only part that really ruins it for me is, where is the battery powering the electric motors? I mean, since I am ignorant about aerodynamics and a bunch of stuff, I can suspend my disbelief about the wing actually providing enough lift, and suppose that there exist incredibly powerful motors that could operate in that way. I would even like to believe that there is an ultrapowerful ba…

He is just flying for 30 seconds, you don't need much battery for that. 500gram LiPo should have more than enough juice for that.

Look at your laptop battery, they are around 50Wh which should be able to provide 2kW for almost 2 minutes, disregarding the maximum current it can pump out.

This is what makes me doubt if it really is fake or not. "Why has nobody done this before"? Because light weight power storage and motors has not been available until now. But the videos smell CG so I'm still calling fake on this one.

Re: Man Supposedly Flies With Custom-Built Bird Wings

#163
post #110

Watch a bird take off. Start with some pigeons, then some sea gulls. If you can, watch an albatross - on YouTube if nothing else. As you get larger, you get heavier; as you get heavier you need more lifting force (ie, bigger wings, moving faster). Recall that weight is a function of volume and increases with the cube of your dimensions, while lifting force is a function of surface area and only increases with the squ…

I think we are all focusing on the wrong issue - that is whether this is real or fake. Who cares! What matters here is that this guy has come up with the idea of using robotic extensions of our limbs, powered by electric motors, to help us in achieving flight.

If we now switch to this mindset, the engineering and tools that we have today should allow us to achieve the desired goal.

So thanks for the hoax, Flying Dutchman - you have started something new here, and your name will not be remembered by what you did, but rather by what you did not and how others used your idea to achieve it.

Re: Man Supposedly Flies With Custom-Built Bird Wings

#164
post #110

Watch a bird take off. Start with some pigeons, then some sea gulls. If you can, watch an albatross - on YouTube if nothing else. As you get larger, you get heavier; as you get heavier you need more lifting force (ie, bigger wings, moving faster). Recall that weight is a function of volume and increases with the cube of your dimensions, while lifting force is a function of surface area and only increases with the squ…

As a followup, note that the creator of the hoax has admitted it[1]. What a surprise!

[1]: http://news.ycombinator.com/item?id=3740972

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