Aces High Bulletin Board
General Forums => Aircraft and Vehicles => Topic started by: funkedup on November 26, 2001, 02:29:00 PM
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And some other stuff: http://www.allaboutwarfare.com/download.php (http://www.allaboutwarfare.com/download.php)
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thx funked!
mauser
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I forgot to add the me 262 pilot's notes, here they are : http://allaboutwarfare.com/files/pdf/aviation/ww2/germany/me262/Manual%20Me%20262A-1.pdf (http://allaboutwarfare.com/files/pdf/aviation/ww2/germany/me262/Manual%20Me%20262A-1.pdf)
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Wow Butch, who OCRed that 262 manual? I made photocopies from the original at WPAFB but I like that clean version you posted!
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I scanned it from one of my books, i also have the original version somewhere but IIRC it's almost unreadable at times due to poor copying.
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Terrific links, thanks a lot!
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S! Funked
This is what I love about these BB`s. You get some excellent hard data here... :)
Thanks
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Hey thank Butch, it's his website! :)
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Thanks for the links!
Interesting tidbit in the 262 manual:
At speeds of 590 to 620 mph the air flow around the aircraft reaches the speed of sound, and it is reported that the control surfaces no longer effect the direction of flight. It is also reported that once the speed of sounds is exceeded, this condition disappears and normal control is restored.
The manual is dated 10 January 1946...
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Raubvogel - it's possible for local airflow on parts of the aircraft to reach Mach 1 even though the plane isn't going that fast. The Mach number at which this occurs is called the critical Mach. Flight sim d00dz call it "compression".
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Yes, aware of that...but to fly through the critical Mach kind of implies something, doesn't it? Or am I reading too much into it?
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Oh it definitely implies you are going damned fast. :)
When you hit critical Mach there is a really big drag rise - that's the so-called sound barrier.
But to be supersonic you have to get the whole airframe over Mach 1. Which takes a lot of thrust or aerodynamic refinement.
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How can we trust a LW document without any whine ?
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Clearly it's an hoax! :D
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nice documents butch2k
but a small rant: can you scan them again, but this time in black and white mode? (not colour nor grey scale, simply black and white).
This should bring the document size down to less than 1MB and those grey spots will disappear
thx
niklas
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I'll try once i get my new scanner, since mine has no XP driver and that my dual boot ME install is currently very unstable. it took me around 1h30 to scan this document because of a couple of crashes.
But i can also try re-exporting the individual pictures from the PDF, and re-import them as B/W. I'll take a look later today.
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Hi Niklas,
>can you scan them again, but this time in black and white mode? (not colour nor grey scale, simply black and white).
>This should bring the document size down to less than 1MB and those grey spots will disappear
If you use have some picture processing software like MS Photo, Adobe Photoshop or Corel Whatever available, scanning in greyscale mode actually is a good idea.
The trick to get clear pictures simply is to adjust the "gamma factor" slider towards a lighter image to bleach the grey areas to pure white without getting the ragged-edge fax look of plain b/w.
In my experience, a greyscale JPG with high compression factor looks better than a pure b/w picture and isn't that much bigger.
That's for single pages, though - I don't know how the Adobe software you're using works in detail, but I have great faith in Adobe in general! :-)
Regards,
Henning (HoHun)