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/sci/ - Science & Math

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File: 129 KB, 1024x768, trolling sci flight.jpg [View same] [iqdb] [saucenao] [google]
2830991 No.2830991 [Reply] [Original]

Wait, why wouldn't this work?

>> No.2830998

Replace "downward air current" with "lift," add a second stabilizing tail prop and it would work.

>> No.2831007

>second stabilizing tail prop
Wait, why?

>> No.2831256

It's a double-bluff.

>> No.2831267

Why wouldn't it work? Oh I don't know... How about this little thing called GRAVITY?

>> No.2831280
File: 575 KB, 900x1218, 2007-04-07-rule_110.jpg [View same] [iqdb] [saucenao] [google]
2831280

>>2830991
Conservation of energy. There's no way there's enough energy in mass M of petrol to lift even mass M in a gravitational field where conservation of energy applies, let alone M plus you and the structure of the Machine.

Flight is always fifty years away, it will never happen.

>> No.2831281

Have you ever derped so hard that you hurp?

>> No.2831284

lol OP doesn't know about newtons third law

there would be a "recoil" to the force lifting the flying machine making it unable to move

>> No.2831289

>>2831007

The second tail prop compensates for drag i believe.

>> No.2831302

>>2831289
but there is one already...
and the tail prop negates engine torque

>> No.2831305

>>2831007
The rotating blade causes the cockpit to rotate, manking the pilot nauseated as fuck

>> No.2831310

>>2831284
forces affect different systems, lol

>> No.2831314
File: 428 KB, 900x1203, 2006-08-30-traversing_the_luminiferous_aether.jpg [View same] [iqdb] [saucenao] [google]
2831314

Then what would negate the torque of the tail prop? Your machine is collapsing on a series of self contradictions.

Even in a best case scenario, where all of the mass is converted into energy, the most you can gain is by launching the petrol straight down with a velocity, which will impart 1/2mv² of kinetic energy on your vehicle. With ordinary limits of mass and easily attainable velocities, the best you'd be able to do is launch yourself up a little ways and come back down.

I could build a similar catapult for less money.