V12 ALISON RUN UP
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Uploader Comments (pulsejetboy)
Top Comments
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Depending on the model (P-51A with Allison engine or B,C, and D models, and US or British) the props were between 10 and 11 feet in diameter (10-foot 9-inch and 11-foot 2-inch being common.) Props are carefully selected for engine output and high and low altitude performance. The engines you see running on the ground usually have a prop with cut-down blades or a wooden test propeller called a test cub.
All Comments (65)
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Music to my ears! What sweet shounds!
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The Allison-engined P-51A had a 10 foot, 6-inch Curtiss propeller.
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My dad built these engines,it makes me happy that a part of him still lives on.
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How large was the prop those engines used to turn...say on a P51?
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Brings back memories of the hydro's on the Mississippi in St. Louis. The cams are such that the idle is very rough until it is advanced to a "sweet spot" then is smooths out much like a high performance fuel dragster. Nice post and thanks.
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Thank for post this. Great sound. Great engine.
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I have removed all of the 8 or so posts containing foul language and other poor taste not relating to the video. I post these videos only as an interested observer.
pulsejetboy 3 years ago 4
The facts are that the guys who got this running are extremelly dedicated and ingenius people, I know for a fact that it was quite a challenge to get this engine running - just enjoy the great sound and think back to the guys who would have flown and died in aircraft powered by these beasts. As for the comment regarding no plane to put it in.........I suggest you take a visit to the Classic fighter jet museam at Parafield Airport Adelaide!
pulsejetboy 3 years ago