1/72 P-47B "Double Twister"

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I've never understood the purpose of counter rotating props. Is it to counter balance the effect of engine torque or just to grab more air? I'm kind of new here but I've been a model builder since I was 7-8. Currently 67.
 
rwhiting said:
I've never understood the purpose of counter rotating props. Is it to counter balance the effect of engine torque or just to grab more air? I'm kind of new here but I've been a model builder since I was 7-8. Currently 67.
Click to expand...
Mainly to eliminate torque though an extra blade can be helpful. They were difficult to get working reliably under high G maneuvers.
 
I love the P-47 razorback of any configuration, tho I'm not big on the yellow color. That said, you've done a great job here.
 
rwhiting said:
I've never understood the purpose of counter rotating props. Is it to counter balance the effect of engine torque or just to grab more air? I'm kind of new here but I've been a model builder since I was 7-8. Currently 67.
Click to expand...
Also, they were trying in various ways to harness and transmit all the power of the newer, large radial engines. You can only swing so large a prop without hitting the ground. The bent=wing F4U Corsair was another approach, which actually turned out great, because having the wings attach straight into the fuselage, without a large wing fairing, helped reduce drag, as well as added speed...

Ed
 
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