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Arm_slinger
04-13-2004, 10:53 AM
Is the fuel pump modeled in it??? Only ask as the engine cuts out under negative G's, which it shouldnt if it has a pump http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

As a back up to the pump failing a 9 litre fuel tank existed that would feed the engine if the pump failed and negative G's were experienced

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242Sqn_Kye-
Pilot of 242 Squadron

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Arm_slinger
04-13-2004, 10:53 AM
Is the fuel pump modeled in it??? Only ask as the engine cuts out under negative G's, which it shouldnt if it has a pump http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

As a back up to the pump failing a 9 litre fuel tank existed that would feed the engine if the pump failed and negative G's were experienced

http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

242Sqn_Kye-
Pilot of 242 Squadron

Sim lover?, want something new? Then look at "Target for Tonight the definitive night bombing simulation ever, featuring the RAF's Bomber Command.

www.nightbomber.com/forums (http://www.nightbomber.com/forums)
Also the home of 242 Squadron "Baders Bastards"

mike_espo
04-13-2004, 11:07 AM
I thought fuel injection is what is needed to stop neg g cut out? Could be wrong.

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Jippo01
04-13-2004, 12:04 PM
Engine cutout happens because the operation of carburator is prevented by inverted flight. Carburator actually floods the engine first and causes it to stall.

It's a carburator problem, and in no way related to fuel pumps, all planes have pumps, stalling ones have carburators.


-jippo

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Arm_slinger
04-13-2004, 02:04 PM
It may be the Injectors i mean then. I cant remember the details, other than that the engine could function under negative G's

If anyone can find the link, it is on this site and is dedicated to the Swedish Glad's http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

242Sqn_Kye-
Pilot of 242 Squadron

Sim lover?, want something new? Then look at "Target for Tonight the definitive night bombing simulation ever, featuring the RAF's Bomber Command.

www.nightbomber.com/forums (http://www.nightbomber.com/forums)
Also the home of 242 Squadron "Baders Bastards"

mike_espo
04-14-2004, 08:42 AM
Yes. Jippo is correct. All aircraft had fuel pumps. Carburator equipped aircraft will cut out doing neg G maneuvers. Fuel injection is not affected.

"Fatte vede che ridemo!"http://www.flying-tigers.net/caccia%20WW%20II/g50.jpg

effte
04-14-2004, 10:27 AM
There are carburators designed to operate in negative nz for longer or shorter periods of time.

Cheers,
Fred

PlaneEater
04-14-2004, 06:53 PM
All the P-40s except the F had a carborateur, and none of them cut out in negative Gs.

It's a carborateur-type problem. Early BoB Spitfires and Hurricanes had the same issue.

DuxCorvan
04-15-2004, 08:44 AM
Sorry, but, doesn't have the Gladiator a radial engine? I thought that the negative G question was just for linear or V ones... http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

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JG53Frankyboy
04-15-2004, 09:28 AM
but they have also a carburators http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif
and as already mentioned, the negG effect is a carburators issue , not the engine its self

Sagittario
04-15-2004, 09:44 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DuxCorvan:
Sorry, but, doesn't have the Gladiator a radial engine? I thought that the negative G question was just for linear or V ones...
<HR></BLOCKQUOTE>

CR42 engine should run also in inverted flight because it has a carburettor that doesn't cut the fuel, the problem is the lubrication: if you fly inverted for a few seconds the oil pumps cuts off and the engine will be destroyed. I found this on the flight manual.
I don't know if this has been modelled in FB.
Ciao

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