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744 takeoff

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Old 23rd Dec 2002, 13:09
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Smile 744 takeoff

Went to Mumbai last Monday on BA 139- on takeoff, I was looking at the engines and noticed that the intakes filled with water vapour on spool-up, and this lasted until rotation.
I'd be interested to know what causes this, I haven't noticed it before.

Very nice flight, by the way, same goes for the return flight last Friday.


Finally, compliments of the season to all, especially those who post such interesting replies and info here. I've learned a lot since I've ben logging on here.
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Old 23rd Dec 2002, 14:08
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Low pressure at the front of the engine causes humid air to condense, In very humid area's you will see the same effect over the wings as well once the aircraft rotates for takeoff.

Cheers
Wino
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Old 23rd Dec 2002, 15:25
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and here's a nice photo......

Condensation

Merry xmas!
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Old 23rd Dec 2002, 16:07
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And another...

HERE
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Old 23rd Dec 2002, 16:59
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Smile

Dufwer,...and here's a nice photo......

Condensation

Merry xmas!
...Errrr, Is there a condensation at front of the radome?
Happy Holidays
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Old 24th Dec 2002, 07:11
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Bokomoko,

There is a photo out there somewhere of an F-18 just as it hits mach 1. There is a vertical 'saucer' of condensation around the radome, and a 'halo' just behind the pilot. I'll try to dig it up as time permits. Doesn't look like the PA D10 has condensation around its radome, rather just looks like a white radome!!

Merry Christmas everyone
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Old 24th Dec 2002, 14:10
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Thanks, Wino, Dufwer and Simon W for the explanation and pics.
Hope you have a great Christmas and New Year!
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Old 25th Dec 2002, 22:58
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Thumbs up

This is the B1 approaching Mach 1.

B1 Photo
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