Strange P-40 stuff

[Angus]

Originally posted by MiloMorai
Not hot tempered Angus, just have no patience for babbling nonsence.

He still has not acknowledged that the Allisons did have a supercharger. The Brass Hats removed the TURBOcharger from the P-39. He is a wee bit confused.

Graham White:

"With the exception of the B model, ALL V-1710s were supercharged by way of the engine-driven geared supercharger."

The B model was used in airships.

[Col. Flashman]

H.T. & Angus

Thank'ee for such mature & articulate responses, these are the type of exchanges I've been looking for here, well, for the most part Angus.

It's from an article in Air Power or W.W. II A/C or...., from the '70's & the "Impression" I got was that to get to "Around 350mph A.I.S.", that it had to be "worked @ in order to be achieved" for level flight & not for very long @ higher Alt's & not achievable @ all Alt's. I seem to remember that 370 was mentioned as Vne/redline in the article, but...... Though I believe Pilots flew past Vne & Vd a tick or 2 in Combat Situations some what regularly, but not always to their benefit.
I believe it was a former F.E.A.F./B.F.F.D. Pilot, that was being interviewed.
There was, as I recollect, a mention of field modifications by Crew Chief's & Pilot's to lighten the P-40B's & E's by removing the 02 system (ordered not to fly over 15,000'), Radio system (towers destroyed in 8 Dec. attack, faded out after 25 miles from base before that & ship to ship communications sporadic @ best) & two of each of the Outboard .50's on the P-40E's to achieve parity w/ the Oscar's & Zeke's.
Though now I'm unable to find this particular magazine to consult as the wife cleaned up in my home office & I'm unable to locate it @ present.
I also seem to recall on more than one occasion coming across statements pertaining to that fact that Crew Chief's in all T.O.'s would do what ever Field Mods that they could get away w/ in order to achieve the best performance out of the A/C they were in charge of in order to give the Pilots the best chance they had in Combat.

Angus, M.M. "may know his stuff", but he has come across in Every response to me to date as impatient, immature, childish & pithily, using what he believes to be wit. Though I no longer care.

[Angus]

Field mods are a thing on its own, and were done to countless aircraft types.
I remember when the RAF in Burma was equipped with Hurricane IIB, set up as a 12 gun ship with a fixed belly tank.
Was like flying a brick the pilots said, so they removed the tank and stripped the guns down to 8 and even 4, - 4x303 was enough to kill the Ki27 (I think they were), and with this improvement the Hurricane was vastly faster and better in the vertical.
In the N-African theater, Spitfires were modded, such as removing the outboard .303's, adding a tube that directed air into the windscreen to keep it from icing when diving between atmosphere layers, and so on.
The 109's sometimes had a windshield spray to clean oil from the windshield, - they used petrol.
There are many many more. Milo will surely know some, and Guppy, etc etc.

[MiloMorai]

Vne – never exceed speed. The IAS which should never be intentionally exceeded in a dive in smooth air.

Sure Col, the P-40s were moded to get an speed increase of ~70mphIAS, ~25% increase. No amount of mods will achieve such an increase without a VERY substantial increase in HP.

The only way a P-40 would get a 350mph IAS is by diving

The P-40E only had wing mgs, so the only mgs that could be removed were in the wings.

Keep babbling Col.

[Knegel]

Originally posted by Col. Flashman
H.T. & Angus
It's from an article in Air Power or W.W. II A/C or...., from the '70's & the "Impression" I got was that to get to "Around 350mph A.I.S.", that it had to be "worked @ in order to be achieved" for level flight & not for very long @ higher Alt's & not achievable @ all Alt's. I seem to remember that 370 was mentioned as Vne/redline in the article, but...... Though I believe Pilots flew past Vne & Vd a tick or 2 in Combat Situations some what regularly, but not always to their benefit.

Hi Col,

Vne´s for all WWII planes i know are listed in Mach or in a list of IAS values in combination with corelated altitudes, simply cause the Vne of this planes is/was related to problems which occur only at high mach numbers, independed from a constant IAS and TAS.

So i dont think Vne 370mph say something in this relation.
Vne´s in MPH, KM/H or Knots normaly are only important for planes with a very weak airframe, where the 'noraml' drag or turbolences already cause enough power to destroy the airframe.  
 As a TAS value its to slow for a P40 and as a IAS value it only would count for a related altitude(or better sayed air temperature and presure).

Anyway, if i see the lot of datas, available in Books or in museums, it still looks very strange to me to conclude a "normal" speed of 350mph IAS for a P40B/E.
You never saw datas of the Bf109F, SpitIXc, P38J or P47C and did wonder why this planes, which didnt reached such high IAS values in a levelflight, got preferred to the P40 as a fighter???
After 30 years of researched you never did stumble over official tesdatas??

Milo,

he was referring to the OUTER pairs of the wingguns, i dont see a hint to other guns than wingguns.
But was they realy going out to fight Ki-43´s with only 2 x .50cal??

Actually at least the AVG rarely saw Ki43´s anyway, mainly they fought Ki-27´s, which was a so incredible slow but nimble plane, that removing guns or anything else dont would bring a advantage. Even without any gun the Ki-27 and also Ki-43-I was more light. The advantage of the P40 in the pacific was a highspeed dive(less weight = less dive acceleration at highspeed and less inertia after the dive) and a devasting firepower in relation to the weak oponets, to get a kill with a snapshot without the need to turn behind the enemy.  

Greetings,

Knegel

[morfiend]

LMAO milo,was waiting to see that,doh maybe a turbosupercharger,cuz the alli did have a charger but a single speed 1 .......anyhoos think it went over someones head........

[Angus]

what is your point?
do you speak english?