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03-27-09, 07:22 PM | #1 |
Planesman
Join Date: Oct 2008
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I need help with variable pitch propellers
I've been with flight sims for a long time, but i still don't understand how to use VP propellers efficiently. I know that it works somewhat like the gears in a car; with a high propeller RPM, you get the highest power, but at a speed high enough the propeller pitch causes enough drag to overcome the engine power. The point is, how do i know when it's time to set a lower RPM?
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03-28-09, 12:46 PM | #2 | |
Navy Seal
Join Date: Apr 2008
Location: Banana Republic of Germany
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Quote:
In a dive lower RPMs (I usually set it to 70%) will help you to gain speed. In a climb you can always have it to 100%. I think in level flight 100% or 90% should get you the highest speed. But maybe someone with a bit more knowledge has more accurate numbers.
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03-28-09, 01:30 PM | #3 |
Lucky Jack
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I use it as Schroeder descriped. Except, I only use it on P51, AFAIK, in IL2 not many planes have any advantage of using prop pitch.
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03-28-09, 01:36 PM | #4 |
Navy Seal
Join Date: Jul 2007
Location: Stavka
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Really? I've seen plenty that can...
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03-28-09, 01:48 PM | #5 |
Lucky Jack
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Be quiet Hurrijockey.
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03-28-09, 05:08 PM | #6 |
Navy Seal
Join Date: Apr 2008
Location: Banana Republic of Germany
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Actually all planes with a constant speed propeller (I think that is the English name for that) will benefit from the tactics described above.
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Putting Germ back into Germany. |
03-29-09, 08:47 AM | #7 |
Admiral
Join Date: Aug 2007
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Schröder pretty much nailed it.
I use it quite similarily: Take off and final approach: 100% Level flight: The same as throttle Climb: Usually the same as throttle, or 100%. Dive: 100% up to 450-500 km/h IAS, then to 80%, then to 50%. When speed drops again after the dive I put it back to 100% around 600-650 km/h IAS. I've only really tested this with P-38s, P-47s, P-51s and the mid-to-late-war Navy rides, so no idea how it works on other aircraft. |
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