P-47 Combat Tactics 101, by Robert S. Johnson

[Buzzbait]

S! Widewing

What is your e-mail.  I'd like to post some technical material, but am unable to.  Wondering if I could send it to you for posting.

                  Thanks Buzzbait

[Jimdandy]

 

Originally posted by Pongo:
Thanks.
So could the allison in the P38 benifit the same way? Or not robust enough to take it?

Higher manifold pressure will help any engine. You are increasing it's volumetric efficiency (craming more air and fuel into the same space) but for any of them it is a matter of how much for how long. Yes the Allisons could be 'hot rodded' the Unlimited hydroplanes did it for years. Those engines were pushed to twice the original horse power ratings. Mechanical modifications were made to them and they only ran for short periods of time. I guess that the long way of saying yes but with qualifications.  


[This message has been edited by Jimdandy (edited 02-07-2001).]

[Buzzbait]

S! Widewing

I left my e-mail on the URL site which your profile includes.

[Buzzbait]

S! Jim Dandy

Those Allison engines used in the Hydroplanes also had key parts replaced with aftermarket specially manufactured parts which were far more durable.

I do not think you can compare the basic strength of the Allison engines with the Pratt and Whitney Radial.  The Pratt and Whitney was far more reliable and robust.

[Jimdandy]

 

Originally posted by SFRT - Frenchy:
Widewing, thanks a lot for those readings, will have the other ones with great pleasure.

What I noted, but it's my own opinion only, u may not share it, is that most Aces described tactics that would not really work in the MA. I think it's related to the fact that we have way more combat hours than them and most of the germans they encountered were newbies at the end of the war.

But the thinking process is the same for them and us (I'm not comparing me as an ace, far from that), but we all analysed what was the best way to fight into our beloved ride using the weackness of the eni plane. Our luck is that we can even testflight the "eni plane" to see strenght/weackness.

I think your right. We get to go up and die time and time again and learn from it. They didn't.

[Pongo]

Thanks all of you for the excellent explenations and ellaborations.

[Sancho]

punt!

[minus]

heh what i know about this joyng Big mount hero  

 undisciplined and wery lucky , most of hiz kills from HO

[janneh]

Leph, here some pics of superchargers:

 

 

[juzz]

null

[ 06-12-2001: Message edited by: juzz ]

[bigUC]

Originally posted by Widewing:


This can be overriden by a mechanic, but not by the pilot. I have heard that doing this leans the mixture excessively raising cylinder head temps beyond normal limits and shortens engine life dramatically.

Same thing happens on a american made compressor marketed for modern day BMW enignes according to my sources - running it above 6000 rpm the electronics will fail to deliver enough fuel, the engine will run lean and temperature rapidly increase until valves and piston burns up - literally.

Running an engine at high compression (power) w/o enough fuel in the mixture rapidly destroys it, even today.

[Widewing]

Originally posted by janneh:
Leph, here some pics of superchargers:

   (Image removed from quote.)  

In case no one realized this, the turbo installation for this P-38 reflects those models prior to the P-38J. From the P-38J-1-LO on, all Lightnings were fitted with core type intercoolers, and not the leading edge intercoolers shown. This substantially improved the cooling of the intake charge allowing, for the first time, sustained fullpower operation without detonation.

Another problem with the earlier design was leakage. Moreover, finding and repairing the leak was a nightmare, requiring the disassembly of a substantial portion of the wing.

My regards,

Widewing

[ 06-12-2001: Message edited by: Widewing ]

[juzz]

Not to mention that engine backfires could deform the wing leading edge!  

[-ammo-]

Originally posted by minus:
heh what i know about this joyng Big mount hero    

 undisciplined and wery lucky , most of hiz kills from HO

Minus, This guys was only one warrioir that helped liberate the country of France..and this is what you say?  

And no his tactics did not involve HO's, he basically got real high, saw the German AC, dive on them and as they flew along unexpectantly he filled their AC full of lead and zoomed back up. On a few occasions the German pilots would attempt to dive away from Johnson's P-47 but this was a mistake too.. He just ran them down and shot them down also.

[Dune]

Great post WW!  Thanks!

Is there anyway we could get you to post this on the AGW main board?