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elp
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 Posted: Jan 28, 2004 - 06:39 PM
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F-16.net Editor
Joined: Sep 23, 2003 - 09:08 PM
Posts: 3147
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| What do cowel flaps on old radial engines like the B-17 and P-47 do? I know they are opened at low speed and/or take off but thats about it. My guesses are only that.... but all I can figure is that since it is an air cooled engine and you are going slower, you need more open area for cooling?? Sorry I'm not an engineer. |
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- ELP -
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 Posted: May 23, 2013 - 9:40 PM
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F-16.net Sponsor
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Habu
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Posted: Jan 28, 2004 - 06:51 PM
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Elite 2K
Joined: Oct 21, 2003 - 06:12 AM
Posts: 2738
Status: Offline
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| You answered your own question. Yes, cowl flaps are there for increased cooling at slow speed. It's not just warbirds, most high performance single props have them, for the very same reason. |
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Do your homework, Tiger!
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habu2
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Posted: Jan 28, 2004 - 06:51 PM
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Elite 2K
Joined: Sep 05, 2003 - 09:36 PM
Posts: 2811
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| They regulate the amount of air flow over the radial engine cylinders, kind of analogous to a thermostat on a cooling system. |
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Reality Is For People Who Can't Handle Simulation
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habu2
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Posted: Jan 28, 2004 - 06:57 PM
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Elite 2K
Joined: Sep 05, 2003 - 09:36 PM
Posts: 2811
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oooh - holeshot!!! H1 beats me at the lights...  |
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Reality Is For People Who Can't Handle Simulation
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Habu
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Posted: Jan 28, 2004 - 07:05 PM
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Elite 2K
Joined: Oct 21, 2003 - 06:12 AM
Posts: 2738
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booyah!  |
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Do your homework, Tiger!
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Wildcat
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Posted: Jan 29, 2004 - 01:56 PM
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Senior member
Joined: Nov 11, 2003 - 12:49 PM
Posts: 289
Status: Offline
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| On the P-47 , the system is very simple: the flaps are closed by... wind, whose strength gradually increases with speed and closes the big cowel flaps. Absolute non gold-plated idea, I like it . |
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