[Wired] Man Successfully Flies With Custom-Built Bird Wings - Page 6

Originally Posted by Wenty 

Sorry but I call fake...... We don't have large breast to run wings like that.

Originally Posted by joshd 

Oh god...

At 0:21 the guy on the left starts running towards the camera. At 0:19 he's on the other side of the wing, and somehow he manages to run nearly trough the wingtip without clipping it. He also manages to cast his full shadow on the wing while his leg is still on the other side...
The shading on the wings does not match textile material as shown in the closeup, it's too reflective.
The guy would need to run really hard to get decent takeoff speed, yet he's wearing one of those squirrel suit things with textile between the legs that would make running really awkward.
The wings do not look fully loaded, loose textiles like that would billow and flap quite a lot under the load of a fully grown man.
Of course a picture perfect landing on the first attempt.
The climb is substantial, yet the airspeed is low. No bird manages that kind of climb by just waggling their wings a bit. They have to work really hard to get off the ground and gain speed.
The wide monowing design would be extremely unstable. No apparent stabilization mechanism is evident.
At 0:41 having attained an airspeed of about 2m/s he folds his legs back (however he does that). But the main point is, his legs would represent air-resistance which would would make him pitch down, so folding the legs up removes one force for pitching down. Moving the legs up also moves the center of gravity back, which would pitch up. But somehow he keeps straight on and doesn't just pitch up. Which is physically impossible.
The wings represent a lever about 2-3 meters long each. They are hinged on joints to motors about the size of a teacup acting on them on a lever about 10cm long. That is a lever ratio of 30:1, so each wing carrying half the average weight of a man (say 70kg) would translate to the equivalent of 2 tons at the end of the 10cm lever. So each of those servo motors is supposed to be able to pick up a load of 2 tons in a matter of fractions of seconds.

Originally Posted by un1b4ll 

Fake. I don't know anything about flight, but I do know about working out, and I can tell you that the rate at which he's lifting his body weight about 28-24 inches with each thrust at that level of arm extension isn't a real thing.

Originally Posted by SectorNine50 

Once in the air, all that matters is airspeed over the airfoil to generate lift. There is no such thing as a headwind in regards to an airfoil, just the speed of airflow over it.

Originally Posted by SectorNine50 

You must have a device or motion capable of maintaining your airspeed and/or vertical thrust in order to climb.

Originally Posted by SectorNine50 

You are showing me a video of someone losing altitude while gliding; they are jumping down a hill.

Originally Posted by SectorNine50 

Gliding is falling with style, not climbing, unless you are using thermals, which is a "device" providing upward thrust. Even while riding that thermal, you are actually still falling through the air in relation to the relative wind, which is why you are still able to maintain your airspeed.

Originally Posted by Wenty 

Sorry but I call fake...... We don't have large breast to run wings like that.

Originally Posted by BlackVenom 

Looks like the ultimate work out. If you fail you can die. Can you imagine the Wright bros? "Dude... we gave you the plane for a reason"

"Look how steady the GoPro footage is. You seriously think his neck is that stable when flapping his arms? To get that high and not move your head around an inch to take in the view? FAKE"