Groundhog Thread Part Deux - P-39 Fantasy and Fetish - The Never Ending Story (Mods take no responsibility for head against wall injuries sustained) (2 Viewers)

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If I get a chance to run into Bud Anderson again, I'll have to ask his opinion on the -39. He got his fighter pilot training in it IIRC and assigned to a -39 sq. on the West Coast briefly.

I have not seen him around town for awhile now. Used to run into him at the local airport once in a great while.
 
Hello!
I was intrigued by reading of this interview with Golodnikov, especially by his mention about true performances of German fighters (color plus some correction of the text by me):

"A. S. Nikolay Gerasimovich, if you look at any reference book, the superiority in speed of German aircraft [like] the Bf-109G and FW-190 is indisputable. Minimum 20-25 kilometers at low altitudes and up to 80-100 kilometers at high altitudes. And you say ours did not lag behind?

N. G. No, some difference in speed always exists. At low altitudes we were a bit faster, at high altitudes they were. The difference was on the order of 10-20 km. But this difference was not so great that it ensured overwhelming superiority. In combat it was practically not discernible.

A. S. Nikolay Gerasimovich, sometime relatively long ago I was speaking with a pilot, a frontline veteran. Right after the war they flew in captured aircraft. And no matter how hard they tried, they were unable to attain the speeds the Germans had written in their specifications. The shortfall in speed was significant. In the end, they prevailed upon a German, a high-level specialist, and asked him, "Why this shortfall in speed? Are we using the engine's capability incorrectly?" His response was that they would never achieve the target speed, because the German specifications showed the theoretical speed, and they were attempting to attain that speed on their instruments.

Nikolay Gerasimovich, in your view, is this possible?


N. G. Of course. We had a group of specialists with us from NII VVS. They were examining specifications and were looking at speed. "What speed is indicated at 7,000 meters? 780? Take away 100. And what about 3,000 meters? 700? Reduce it 70 km." This is how they calculated the instrumented speed and, characteristically, almost always hit their target. Perhaps they knew something about our focus on speed."

I wonder what they mean for "theoretical speed": didn't Germans actually test in flight their planes? And what is this "instrument speed" they speak of?

I would be glad to know your opinion. Cheers,
GB
Calum another poster here (forum name Snowygrouch) posted a lot of info about German aircraft performance. As the war went on the build quality of airframes and engines went down so much that the actual performance was nowhere near what they should have been
 
I was surprised that one P-39 pilot said the P-39Q with the external .50 cal gun pods was a worse performer than the earlier models (see an article I posted from the USAF Museum Newsletter). The Q model shook more at higher speeds. While I have seen some evidence of Soviet pilots removing the external .50 cal, I have to wonder why that installation was allowed and we did not see more efforts to delete the guns in the field. I can only imagine that they did not need the higher speeds for the missions they were flying and valued the increased firepower more..

Also attached is an article from Aviation History Mag with some P-39 lore.
 

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C'mon guys, the P-39 was a pretty good airplane as long as you didn't need to fight in it. You could bolt on a beer keg, go flying and get the beer cold enough right as your fuel got to emergency state. But, if you actually had to shoot some ammunition, the beer would take you well into aft CG before you could spit, which tended to foam the beer while in the spin.

So, the real solution was to drink Saki instead of beer. Then, the Japanese pilots wouldn't dare shoot at you as you were flying about cooling it. Instead, they'd wait for you to run out of fuel and force you down on one of their airstrips., where they'd take the Saki and heat it instead before drinking it.
 

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