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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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3521834 No.3521834 [Reply] [Original]

Problem /sci/ ?

>> No.3521911

The downward push of the air is not what causes the helo to fly. It's the vacuum over the upper surface of the airfoil that SUCKS the helo up.

lrn2aeronautics

>> No.3521950

>>3521911
vacuums can't do work, i.e. they can't suck

higher pressures do the work not vacumes

>> No.3521990

can we agree it's a pressure differential across the blades of the helicopter?

>> No.3522006

>>3521990

>can we agree

Agree? On /sci/? Best laugh all day.

>> No.3522059

>>3521911
>>3521950
Trolled.

>> No.3522078

More meta-troll physics OP!

>> No.3522095

Actually the machine in OP's picture won't fly, because the blades will spin in one direction and Newton's 3rd law will cause the helicopter's body to spin in the opposite direction, canceling it out. That's why helicopters have either 2 main rotors or a small tail propeller which stops the body from spinning.

>> No.3522292

But how are you going to accommodate for gyroscopic precession?

>> No.3522342

>>3522095
>>3522292

There is a tail rotor on there.