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/sci/ - Science & Math

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10461280 No.10461280 [Reply] [Original]

If aircraft require a stabilizer to prevent the pitching moment that moves causes the airfoil to pitch down, how come hang gliders don't need them?

Furthermore, how did this nigga survive with untapered/unswept wings and no control surfaces?

t. brainlet suffering through Darrol Stinton's "The Design of The Aeroplane"

Also are there any resources on the design and aerodynamics of hang gliders specifically?

>> No.10461562
File: 31 KB, 500x460, ozone-sport-kite.jpg [View same] [iqdb] [saucenao] [google]
10461562

>>10461280
Hang glider pilot shifts his weight from side to side, forward or aft, in relation to the center of lift. This pitches the nose up or down, banks left or right...

Incidentally, first hang gliders are based on the Rogallo Wing. designed by NASA engineer Francis Rogallo. The basic design was originally built as a stickless kite for his kids, later adapted as a possible landing wing for Gemini capsules.

Gemini eventually opted for regular parachutes, but Rogallo's concept gave birth to the modern hang glider, as well as the modern delta-wing sport kite.

>> No.10461573
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10461573

>> No.10461577

>>10461280
Center of gravity shift idiot.

>> No.10461582

>>10461577
And if you're talking about paramotors, they have an engine which allows them to change the amount of lift, which is essentially the same as changing the center of gravity relatively.

>> No.10461584
File: 189 KB, 800x550, d71ff55e35abf2e6265425ac790c34614061088a.jpg [View same] [iqdb] [saucenao] [google]
10461584

NASA-Wing is an attempt to scale up Rogallo's ear'y stickless kites and make them maneuverable . They are a bit clumsy in flight but pull like a truck.

>> No.10461776

>>10461280

The hang glider is self stabilizing. The center of mass is below the wings which is trying to lift everything.

>> No.10462991

>>10461573
Is that wright pat Air Force museum.?

>> No.10465263

>>10462991
No, the Air and Space annex out by Dulles.

>> No.10465346

>>10461562
Uh hang gliders have existed for thousands of years...

>> No.10465383

>>10465346
Yeah, didn't Mussolini escape from a prison using a hang glider?

>> No.10465393

>>10465383
My bad, he was rescued by paratroops who arrived on airplane-pulled gliders, no hang gliders were used.

>> No.10465705

>>10465346
Yeah, thousands. Icarus and Daedalus, y'know. Hang gliders towed by elephants were deployed by Hannibal's army to cross the Alps. Hang glider pilots launched by a large horse were able to fly over Troy's walls and open the gates from inside. Very versatile.

>> No.10466387
File: 75 KB, 403x448, YCn1-48W_yTMMSPyWsQs0ZEA0UxXq1mcVpcrRNgcdWs.png [View same] [iqdb] [saucenao] [google]
10466387

>>10465346

>> No.10466891

>>10465346
No. Gliders have existed for at least hundreds of years. Hang gliders, with the pilot suspended in a harness below the wing to control flight by moving the center of mass, are a recent invention.

>> No.10467039

>>10466891
Show some of those early designs then

>> No.10467047

>>10466891
So you just took back from thousands of years to hundreds? Looks like someone didn't do their homework properly and just spewing shit

>> No.10468298

>>10461280
with hangliders or paragliders you are at the mercy of chaos and that's why anyone who has done it for long enough has come close to death and been badly injured at least once and knows many people who have died. you really need to be ready to die to take part in hang gliding. they are badly designed. we are not birds, so you need something much larger like a full size glider, if you want to live. but that shouldnt stop you lol