[Karl Spooner]

Do you know anything about this P51? I have a hard time finding out just how much the counter rotating props improved performance.

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[jim_trent]

Burnt to a crisp

http://www.popularmechanics.com/flight/a17269/precious-metal-p-51/

[Paal Gulli]

"Do you know anything about this P51? I have a hard time finding out just how much the counter rotating props improved performance."


Those are contrarotating propellers, not counter. Contra rotating should be easier to find performance data on.