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Originally Posted by Archer
The Russians claim that the 29K has a new smokeless engine etc. As to whether they succeeded..
I refer to Vishnu Som of Ndtv who flew in the MiG29UB and had a chance to compare the 29 Kub (two seater 29K which we're discussing) to the UB (two seater 29..)...
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Would any jet be smoke free in -12 degree temperatures?
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One would hope so, since the average temp at 30,000 ft. is about 40 below. If he's blaming the smoke on low temps at -12, what's it going to look like at -40 or -60?
Edit to add: just looked this up in my standard atmosphere chart. It gives the temp at 37,000 ft. as -69.7 F (-56.5 C) on a standard day.