Raptor Venting?

Most likely the same you see from the F-16 and F-15 when they pull a turn.

Just to explain, Simon, the vapour is not being vented, it is caused by the vehicle squeezing water out of the air as it progresses, which appears as a (short lived) cloud.

It can be seen almost every sunny day if you live under the flight path of a regular commercial airline. And can/did cause a lot of consternation for high flying bombers, as it’s a dead giveaway.

From Nellis AFB Airshow last November, photo fly by

Piccy by me

Canon 30D/EF 100-400 IS L @300 mm, F8 1/500 (or so)

yeah nice pic thanks

Thanks TEEJ
Simon

A superb image showing the vapour forming as the Raptor climbs

Taken from

http://www.skycontrol.net/organisations/lockheed-f-22-raptors-to-fly-dazzling-aerial-displays-during-eaa-airventure-oshkosh-2007/

That is just vapour.

You see that type of vortex vapour forming in this video of a Raptor display.

http://www.youtube.com/watch?v=PyKYw_p1Hrc

Example of vortex being generated on this Harrier that I captured at low-level in UK