Hmm ... are Niel and Nashwan naughty? Not good. Trickery is not acceptable in a serious debate. I very much like every plane in AH to be as accurate as possible, but falsities are uncalled for no matter how big an enthusiast you may be.
A word of warning about Isegrim. If you disagree with him, he's apt to call you a paedophile. He has a rather strange relationship with the truth. I know this for a fact, because he attempted to prove I was a liar by posting "quotes" from me that I hadn't made, or had made in a different context.
GSholz, if you have any doubts about the information I have posted, ask and I shall attempt to back it up.
As to Isegrim's allegations:
"Just to make clear, Nashwan often makes up ridiculus things, like +25lbs being standard on Spit XIVs,"
Isegrim likes to use the best figure he can find for anything German, no matter what the context.As such, I am comparing like for like. There is a source showing Spit XIV speeds that can only be achieved at 25lbs boost, so I am using it until I see evidence otherwise.
http://www.fourthfightergroup.com/eagles/spit14pt.htmlor nonexistent "ghost" Spitfire XIV squadrons which are supposed to serve in India during WW2,
You could look up the career of "Ginger" Lacey, who commanded a squadron re-equipped with Spit XIVs in India during the war. If the story goes into enough detail, you will see that he was originally allocated Spit XIVs with bublle canopies, which he rejected, and were passed to another squadron in India.
or funny theories for the Murmansk convoys
The "funny theory" about the Mrmansk convoys is that they were also used as bait to lure out the Tirpitz. The dispute with Isegrim started over PQ17, which I said was being used as bait. Isegrim maintains the covering force for PQ17, which included 1 British an 1 US battleship, a carrier, and many cruiser, ran away as soon as they heard Tirpitz was out. He's taken my comment that the convoys were used as bait to mean they were ONLY bait, and had no other purpose.
1.8ata was authorized from the very beginning, and 1.98ata was cleared already in 3rd (!!) edition of the DB 605DC manual, dated November 1944.
This is directly contradicted by Butch2k. I don't know if you ever went to his board, but it was a good place to discuss WW2 aircraft. Butch occasionally posts here, I hope he is still reading these forums. I believe he is researching a book on the 109, and most of Isegrim's 109 information comes from Butch, including the original documents that he quotes in his speed and climb graphs.
Butch was adamant that 1.8 ata wasn't authorised until Feb45, 1.98 ata until March 45.
Just to make clear, Nashwan has again no idea of what he is talking about. First, not all Mustangs switched to 150 grade.
I never said all. I said 8th AF Mustangs did, and British home based Mustangs did.
I don't know for certain that every 8th AF Mustang switched, but I did give you the figures for 8th AF 150 octane consumption, 20,000 tons per month, which is a very large number of fighter sorties. (700 a day assuming 1 ton of fuel used per fighter)
Second, he "forgots" to mention that the 8th AAF used only 71" Hg with their Mustangs, instead of 67", when running on 150 octane.
I didn't "forget" anything.
To quote myself:
According to the manual, 25lbs boost was limited to 5 mins, same as 18 lbs boost (Note the US didn't allow 25 lbs at all, something like 76 " HG, 21 or 22 lbs boost iirc).
The 71" figure Isegrim quotes sounds too low to me. I believe the 8th used 72" in the V-1650-3. They may have used the same figure in the -7, but I wouldn't be suprised if they used more. I can't track down a source with the exact figure at the moment.
Doing the conversion now, my figure of 21 or 22 lbs boost equals 73 or 75" HG, which isn't far off given my "iirc"
Also, not even +81 HP gave 2000 HP in the Mustang, only 1940, and only up to a mere 500 ft, then power fell of due to insufficent superchargin
Isegrim is deliberately distorting again. He likes to give sea level only HP figures, no matter what altitude is being discussed. His 500 ft figure is correct only for low speed, not high speed flight, where ram air assists the supercharger. The figures from the Merlin chart have are about 1940 at 0ft 400mph, to about 2040 at 4,000ft 400mph. If you want proof, I can arrange to send you the chart.