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What Is Happening On This Picture?  
User currently offlineLacke From Sweden, joined May 2001, 18 posts, RR: 0
Posted (11 years 6 months 3 weeks 6 days 2 hours ago) and read 3508 times:

Please someone tell me what is going on here

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Photo © Keith Blincow



thanks



9 replies: All unread, jump to last
 
User currently offlineKevi747 From United States of America, joined Apr 2001, 1058 posts, RR: 12
Reply 1, posted (11 years 6 months 3 weeks 6 days 2 hours ago) and read 3503 times:

That engine is spitting out water. Just kidding. I've seen that from inside the cabin before. I don't know what that is. I always thought it was the engime sucking water off the runway/taxiway.


"Reality has a well-known liberal bias." --Stephen Colbert
User currently offlineRes From United States of America, joined Jul 2000, 417 posts, RR: 1
Reply 2, posted (11 years 6 months 3 weeks 6 days 2 hours ago) and read 3497 times:

Its most likely converging air - the air being sucked into the fan, then the air being blasted toward the engine inlet.


FLY NAVY
User currently offlineAWspicious From , joined Dec 1969, posts, RR:
Reply 3, posted (11 years 6 months 3 weeks 6 days 2 hours ago) and read 3496 times:

Nothing serious - Just an airplane relieving it's self after a night of heavy beer drinking.... At Hooters  Laugh out loud

aw


User currently offlineCCA From Hong Kong, joined Oct 2002, 836 posts, RR: 14
Reply 4, posted (11 years 6 months 3 weeks 6 days 1 hour ago) and read 3452 times:

Usually at low speed with high thrust and the right atmospheric conditions low pressure vortices form due to condensation, this one looks more like it's passed over a puddle of water which helps the process but gives a similar, but much more spectacular effect.
This is another way for the same sort of thing.

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Photo © David Morrell


I managed to find another one as you can see no forward speed which would require less thrust for the same effect.

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Photo © Keith Blincow




C152 G115 TB10 CAP10 SR-22 Be76 PA-34 NDN-1T C500 A330-300 A340-300 -600 B747-200F -200SF -400 -400F -400BCF -400ERF -8F
User currently offlineAApilot2b From United States of America, joined Nov 2000, 572 posts, RR: 1
Reply 5, posted (11 years 6 months 3 weeks 5 days 23 hours ago) and read 3361 times:

The answer by CCA says it all. I have seen this a lot with F-16s. They create a mini tornado in front of the aircraft (even at idle) it is most noticeable if their is moisture in the air. It is pretty cool to watch.

User currently offlineVonRichtofen From Canada, joined Nov 2000, 4627 posts, RR: 36
Reply 6, posted (11 years 6 months 3 weeks 5 days 23 hours ago) and read 3341 times:

Indeed it is a vorticy created by the engine ingestion and a wet taxi area. As said by CCA this one was probably from a large puddle.

When I worked on the ramp at YYC I saw this all the time when final marshalling a departing aircraft on a wet ramp.

Regards,
Kris
YYC



Word
User currently offlineA330DAT From Belgium, joined Nov 2001, 469 posts, RR: 1
Reply 7, posted (11 years 6 months 3 weeks 5 days 18 hours ago) and read 3193 times:


Just like AApilot2b said. It's a mini tornado being formed with air being sucked into the engine.

Below here are pictures of 737's equipped with "pins" in front of their engines, which are there to avoid injestion (sucking up) of debris. Not all aircraft are equipped with this, of course. In this case they are used in rugged terrain of the high north where the risk of engine damage is greater. Also notice what looks like a ski on the forward landing gear. This also prevents debris (rocks, pebbles...) from damaging the aircraft.



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Photo © Rob Rindt
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Photo © Den Pascoe



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Photo © Den Pascoe
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Photo © Kevin Wachter



 Smokin cool


User currently offlineBackfire From Germany, joined Oct 2006, 0 posts, RR: 0
Reply 8, posted (11 years 6 months 3 weeks 5 days 18 hours ago) and read 3177 times:

Is the C-17 in the photo engaging reverse thrust?

There's often a flexibility demo at air shows in which the aircraft backs up on the taxiway. If this is the case, does that explain the airflow which has created the vortex?


User currently offlineAAMD11 From UK - Wales, joined Nov 2001, 1059 posts, RR: 1
Reply 9, posted (11 years 6 months 3 weeks 5 days 16 hours ago) and read 3064 times:

Here's a few photos i found with similar 'vortexs'


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Photo © Pedro
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Photo © Pedro



Showing an RB211-524 at 80% N1 (left) and 100% N1 (right).
Pretty cool view  Smokin cool

A^A MD-11


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