Spitfire V

[funked]

 

[This message has been edited by funked (edited 03-08-2000).]

[funked]

SnakeEyes, by your logic I would conclude that all Fw 190A-3's had derated engines with sparkplug problems.  

Not a Luftwaffe weenie, just obsessed with accuracy.

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Aces High Instructor Corps

303 (Polish) Squadron "City of Cracow"

[This message has been edited by funked (edited 03-08-2000).]

[SnakeEyes]

Agreed... as long as you assume that Pyro is  modeling the Spit Vs that didn't have the injection.  


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SnakeEyes
o-o-o-
=4th Fighter Group=

[funked]

Hang on, I misread something.

The complaints I've read were only about a Spitfire Mk. IX.  The AFDU report does not describe negative-g problems with the Mk. Vb.  Sholto Douglas' cover letter states that he has only 14 Spitfire IX at the time (7/17/42) and that none of them have negative-g carburation.  That's all I've got.

P.S.
I don't believe that any of the Merlins in the V or IX had fuel injection in the true sense.  It was an injection carburetor aka "throttle body injection".  Not true port fuel injection like on a BMW 801.


[This message has been edited by funked (edited 03-08-2000).]

[Sorrow[S=A]]

And do not forget that since we have a 1944 plane set, any Mk V planes still in service at that point would definitly have the neccesary refits

[SnakeEyes]

I'm simply assuming that, because this issue has been widely discussed for some time (since the WB 1.11 days at least), Pyro is certainly aware, and has decided to model the later models where the issue was resolved.

Given the planeset in AH, that at least makes plenty of sense from a playbalance perspective (combine the realism approach with playbalance by modeling a later variant).

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SnakeEyes
o-o-o-
=4th Fighter Group=

[funked]

Yep this thread should be closed, because I misread the UK document.  I have no evidence of such a problem with the Spitfire Mk. V.

[juzz]

I have read that the modified "Schilling" carb still didn't totally prevent negative-g cutout. But obviously Packard fixed it - has anyone ever heard any mention of negative-g cutout problems with the Mustang?

[Sorrow[S=A]]

negative, only early mkV planes had problems with it, and mostly from premature failure in designs from engineers in britain. Once the packard system was introduced the negative G issue never came up again. However, to tell the truth all mkV planes should have cut-out under more than -6 or -7G.  This was approximatly the same amount of pressure upwards as the blower was forcing downwards and would result in flooding or lean out in the fuel. This was noted in several test flights done by the RAF against 109's. I think it's not modelled because it is really irrelevant. The odds of it happening are to rare and extreme to really worry about it not being there.

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If your in range, so is the enemy.

 

[This message has been edited by Sorrow[S=A] (edited 03-09-2000).]

[Pyro]

Juzz, the Schilling modification was a fix that could be applied to the early engines, but RR did design a neg G carb that was fitted on later engines.

[Spritle]

Another perhaps more significant difference between the fuel injected 109 engines and the Merlin's carburetors was the throttle management.  I have an older book that details some flight testing on a captured 109E vs. an early spit.  One of the first things that is noted on the 109 is the ability to virtually slam the throttle to any position with instantaneous results.  This was not so with the spit without a significant amount of coughing and sputtering.

Also how about changing the Mk. VB we have now to a Mk. VC.  The C had 4 cannons instead of 4x.303 and 2x20mm.  Taken together the Mk. V series were produced in greater numbers than any other variant and a full 10% of that number were C versions.  My gunnery skills are so bad that I really need big guns  

[skeet]

... and another quote from my dear old dad, ex 124 RAF Spit VII's etc  ...


" ... it was known universally throughout the RAF as 'Miss Schilling's orifice' ... "

 <grin>



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skeet - out
Aces High - Fight Stimulator

[Pongo]

Spirtle
The Vc could carry 4 20mm, so it would be an interesting load out option for an allied plane. The IX had the same capability though so if HTC was inclined to allow that (quite rare) load out, they could do so now.


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Pongo
The Wrecking Crew

[Pongo]

The spit V in AH is painted in 1941 colours. It should have a 1941 engine and a 1941 carb.


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Pongo
The Wrecking Crew

[Spritle]

Pongo,

I just picked the VC because there were probably more VC's than IX's with a 4x20mm load out.  I could be wrong on that though.  

Spritle