Counter Rotating aircraft/ship propellers.
If both propellers are on the same one shaft, how are they spinning in opposite directions at the same time?
Whats the configuration of contra rotating propellers?
How did engineers do that?
And whats the purpose of contra rotating propeller?
That propeller configuration fks my brain so much.
In: 1
The two propellers aren’t on the same shaft.
One is on a central shaft that goes through, this is the “front” propeller. The other is mounted to a “collar” that circles the shaft, and is connected via gear the central shaft that rotates it the other way around.
The reason for it is to reduce the net torque.
Having a propeller rotating at high speeds means it’s hard to bank the aircraft “against the propeller” and easier to bank it with the propeller. Counter rotating propellers remove this problem. And can sometimes provide additional thrust.
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