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Can The Concorde Make Contrails?  
User currently offlineILS From , joined Dec 1969, posts, RR:
Posted (14 years 3 months 3 weeks 2 days 17 hours ago) and read 1614 times:

Since the Concorde has supersonic engines, is it possible for them to make contrails?

2 replies: All unread, jump to last
User currently offlinePrebennorholm From Denmark, joined Mar 2000, 7137 posts, RR: 53
Reply 1, posted (14 years 3 months 3 weeks 2 days 16 hours ago) and read 1593 times:

Contrails have nothing with speed to do. It's only a question about humidity. Every pound of fuel burned produces 1.2 pounds of water vapor which may freeze to ice particles - contrails, or evaporate depending on the conditions, ambient humidity and temperature.

But the Concorde cruises in the strotosphere where the air is much dryer, and it will normally not produce contrails up there.

At lower levels, however, it is no different than other airliners. Except that it consumes so much more fuel, and therefore produces more water vapor, and generally thicker contrails.

Regards, Preben Norholm

Always keep your number of landings equal to your number of take-offs
User currently offlineEGGD From United Kingdom, joined Feb 2001, 12443 posts, RR: 32
Reply 2, posted (14 years 3 months 3 weeks 2 days 16 hours ago) and read 1595 times:

No, it is far too expensive to fly to produce contrails AS WELL  Smile  Big grin

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