Aces High Bulletin Board
General Forums => Aircraft and Vehicles => Topic started by: Xjazz on August 30, 2003, 05:27:44 PM
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Hi,
I have a fly lately Hurri I alot. Few times I had engine shotdown during the fight I had to hit E-key to start engine again.
I use hotas and engine toggle function is not programmed to the stick or throttle.
I had try reproduce this mystery shotdown in offline with 0G (or bit less) and with allmost full redout paradolic flight path.
I try to push as long as possible 0G or less.
No success so far, because every time I pull out from dive (end of parabolic) engine start again.
Anybody else has same expirience with Hurri I?
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Yes. Neg G's in a Hurri I (or a Spit I for that matter) cuts the engines out. It's an historic detail that AH added.
At least that's what I THINK is causing what you are experiencing.
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I think he's saying that sometimes the engine cuts out, and doesn't come back on even when he pulls back up.
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Originally posted by BenDover
I think he's saying that sometimes the engine cuts out, and doesn't come back on even when he pulls back up.
Jep, question is NOT about the enige cutout during the 0G or less maneuver. Question is why engine shotdown/off?
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floating carb.
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Shane, are you saying that extended Neg G's kills the engine dead because of it's floating carb? What I mean is that an extended Neg G kills the engine to the point where it won't come back on unless you restart the engine?
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I'd imagine that if the engine is dead for long enough you would need to restart it from scratch. Not sure if this is modelled though.
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ya,,shane is right on the money,,its because the gas is not forced down in the motor on hurrican 1,,,thats why fuel injection was put on most air planes,,floating carbs like on a car,,,gas cant flow under negivtive g's,,either can any liqiud,,thats why most planes have pressurized gas tanks and fuel injection too,,,so it pushes the gas down into the cylinders
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The early Hurricanes and Spitfires had the engine cut-out under neg G because the engine flooded.
There was a hichup initially but the float valve open completely when the a/c inverted and allowed fuel under pressure from the pump to enter the induction system resulting in an overly rich condition.
The problem was fixed by a female engineer named Tilley.
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The early Hurricanes and Spitfires had the engine cut-out under neg G because the engine flooded.
There was a hichup initially but the float valve open completely when the a/c inverted and allowed fuel under pressure from the pump to enter the induction system resulting in an overly rich condition.
The problem was fixed by a female engineer named Tilley.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
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Wow...how did that happen? Sorry.
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Originally posted by DiabloTX
Errrrgh...no, my question was in AH if you go neg g's too long does the engine cut require a restart manually? In my experience the engine always came back after a pull up but have not seen what it does after sustained neg g's.
Hi,
I just tested this sustain neg G condition.
I climb to the 20k alt and start left hand INVERT dive turn. I glide down 160-200mph(IAS) and I could keep prety constant -1.5G. Alter 1+ minute I rollout from invert dive turn at 1k and engine start it self without problem.
Concerning my experience it has take only ~10sec neg/zero G for totally engine shotdown... As I say before, this has occure only few times.
Maybe lateral forces has something to do with this. Sudden lateral transition from -G to the +G flooding the left/right side carbs?
I dont say this is a bug or any problem. Its just cause those "Whatta Heck?!" moments and paniced fuel & damage checks.
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real hurry & first spit pilots was not doing neg G.
They was rolling and diving with +G.Inverted.
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Xjazz,
the Merlin was only fitted with 1 carb and that was before the blower.
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Originally posted by MiloMorai
Xjazz,
the Merlin was only fitted with 1 carb and that was before the blower.
Thanks Milo.
I was just guesing.
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Perhaps the engine is not really shutting down. It may be that the time the engine takes to get back running is proportional to the time or severity of the negative Gs you are pulling.
Im just thinking of when pulling extreme and extended positve Gs, you black out for longer. Sometimes I have had a completely black screen for ten seconds! (no my pilot wasnt wounded. I'll point out that this has happened after i have released all pressure on the stick.
So maybe this egine cut out is the same thing. Next time it happens (when your engine seems totally dead,) just try waiting. Worse thing that could happen is you hit the ground and you have to re-up.
And no use trying to recreate this problem you experience. You know bugs never occur when you want them too. :D