Author Topic: Early War BOB mission problem  (Read 1323 times)

Offline jimson

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Early War BOB mission problem
« on: August 07, 2008, 11:44:06 AM »
With the allied planes, when I nose down, engine slows to the point  of stalling, when I pitch back up, engine speeds up.
109 works fine however. Anyone else have this problem?

Offline pokecheck

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Re: Early War BOB mission problem
« Reply #1 on: August 07, 2008, 01:05:56 PM »
Am I really the one that has to do this?The short answer is that the spits had carbeurators at the time and when you nose down it creates a low or no-g enviroment making it impossible for the fuel to make it into the cylinders.
Quite frankly, I just don't give a damn.

Offline jimson

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Re: Early War BOB mission problem
« Reply #2 on: August 08, 2008, 11:15:21 AM »
I'll be damned. Having flown other (later) spit models I never knew about the carb situation.
Must have really sucked for the early RAF pilots.

Thanks for the answer.

Offline pokecheck

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Re: Early War BOB mission problem
« Reply #3 on: August 09, 2008, 01:49:50 PM »
It only affected the mark 1 and the mark 2's possibly
Quite frankly, I just don't give a damn.

Offline pokecheck

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Re: Early War BOB mission problem
« Reply #4 on: August 09, 2008, 01:53:46 PM »
What I mean is that I can't remember if the mark 2's had carbeurators or not.
Quite frankly, I just don't give a damn.

Offline wantok

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Re: Early War BOB mission problem
« Reply #5 on: August 10, 2008, 07:39:59 AM »

The information I've seen says that Spits and Hurris were affected until around March 1941 (when Miss Shilling's Orifice was fitted as standard). 

On that basis Spitfire Mk I, II, III and Hurricane Mk I and early II (pre IIB) had the negative-G problem.
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Offline Obie303

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Re: Early War BOB mission problem
« Reply #6 on: August 11, 2008, 08:05:16 AM »
In AH, the only planes that will stall under negative G's are the Hurri I and Spit I.  Everything else has fuel injection.
I have fought a good fight,
I have finished my course,
I have kept the faith.
(quote on a Polish pilot's grave marker in Nottinghamshire, England)

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Offline Anaxogoras

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Re: Early War BOB mission problem
« Reply #7 on: August 12, 2008, 04:34:54 PM »
The assumption that later mark Spitfires and Hurricane's with a merlin engine had fuel injection is false.  Rather, their carburetors were modified to continue fuel flow during negative G maneuvers.  Throttle response in aircraft with fuel injection was superior to aircraft with carburetors, e.g. the BF 109.
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