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Author Topic: Saving gas at 45k  (Read 3217 times)

Offline caldera

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Saving gas at 45k
« on: October 23, 2010, 06:10:27 PM »
Turns out it is true.  :)

Upped a D-11 with full fuel, ammo and a drop tank to intercept a darbar that appeared to be on a strat mission.  By the time I got to 28k, he bailed despite me still being in another sector. 

So being at alt already, why not try to find the limit?



It looked to be all over at 44k when the climb rate dropped to 46 fpm.  What's weird is that the climb rate increased from then on.  It went up to 63 fpm at just under 45k.  Then the bottom dropped out and it couldn't pass 45 without WEP.  Unfortunately, I didn't see a certain P-51D at 35k.  Would have been funny to BnZ him while he's hovering up there.  :D
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Offline fbWldcat

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Re: Saving gas at 45k
« Reply #1 on: October 23, 2010, 06:14:33 PM »
Sweet gunsight, I've never seen that one before.
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Offline caldera

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Re: Saving gas at 45k
« Reply #2 on: October 23, 2010, 06:26:43 PM »


Darth Vader approved.
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Offline Yossarian

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Re: Saving gas at 45k
« Reply #3 on: October 23, 2010, 07:05:26 PM »
Quote from: caldera on October 23, 2010, 06:26:43 PM
(Image removed from quote.)

Darth Vader approved.

Mr Vader doesn't use gunsights, he uses the Force.
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Offline StokesAk

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Re: Saving gas at 45k
« Reply #4 on: October 23, 2010, 07:17:47 PM »
Quote from: Yossarian on October 23, 2010, 07:05:26 PM
Mr Vader doesn't use gunsights, he uses the Force.

f3 mode doesn't count as the force. :)
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Offline Tarstar

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Re: Saving gas at 45k
« Reply #5 on: October 23, 2010, 08:59:43 PM »
Could a pilot, in an unpressurized cabin survive above 30k?  :headscratch:
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Offline kvuo75

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Re: Saving gas at 45k
« Reply #6 on: October 23, 2010, 10:56:33 PM »
Quote from: Tarstar on October 23, 2010, 08:59:43 PM
Could a pilot, in an unpressurized cabin survive above 30k?  :headscratch:

if he's breathing oxygen and stays warm, yeah.
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Offline Dawger

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Re: Saving gas at 45k
« Reply #7 on: October 24, 2010, 06:38:58 AM »
Quote from: kvuo75 on October 23, 2010, 10:56:33 PM
if he's breathing oxygen and stays warm, yeah.


It must be high oxygen content not normal air. The oxygen has to be under positive pressure. That means it has to be forced into your lungs. It isn't much fun.
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Offline LLogann

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Re: Saving gas at 45k
« Reply #8 on: October 24, 2010, 07:29:11 AM »
 :rofl
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Offline Krusty

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Re: Saving gas at 45k
« Reply #9 on: October 24, 2010, 09:48:01 AM »
You are not saving gas. You are simply unable to make full power. Try the same MAP/RPM settings lower and you will see similar results.


Those P-47s go a LONG way on reducing the throttle just a little bit.
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Offline Masherbrum

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Re: Saving gas at 45k
« Reply #10 on: October 24, 2010, 09:49:51 AM »
See Rule #4 (one more mention of 'voss' and it will be a permanent ban)
« Last Edit: October 25, 2010, 09:12:52 AM by Skuzzy »
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Offline Dawger

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Re: Saving gas at 45k
« Reply #11 on: October 24, 2010, 04:53:05 PM »
Quote from: Krusty on October 24, 2010, 09:48:01 AM
You are not saving gas. You are simply unable to make full power. Try the same MAP/RPM settings lower and you will see similar results.


Those P-47s go a LONG way on reducing the throttle just a little bit.

 Incorrect. True airspeed for a given power setting is much higher at altitude in a supercharged engine. So you are getting more for less up high.
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Offline Krusty

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Re: Saving gas at 45k
« Reply #12 on: October 24, 2010, 09:05:22 PM »
It doesn't matter what your true air speed at 45k is... How much fuel are you burning (GPH)?


P.S. You burn off more fuel getting that high than you would if you leveled at (say) 20K and cruised from there. You'd get to the fight and back faster as well.
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Offline dkff49

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Re: Saving gas at 45k
« Reply #13 on: October 24, 2010, 09:24:43 PM »
It appears that some have missed the joke but that is ok.
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Offline Krusty

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Re: Saving gas at 45k
« Reply #14 on: October 24, 2010, 09:28:39 PM »
I get the joke that it's a reference to Challenge. I'm just saying the PREMISE the joke is based on is wrong.
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