airforceone
Posts: 53
Joined: Thu Aug 24, 2006 9:47 am

Jet Fighter Contrail

Sat Jun 02, 2007 9:20 am

Hey All, I was just wondering if Fighter Jets make contrails. Like when they cruise to contrails come out of their engines?.
I witnessed a F/A-18 Hornet take off and before, when I asked the pilot what they normally climb to he said FL300. Thanks for the responses
AirForceOne
Darrell
 
2H4
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RE: Jet Fighter Contrail

Sat Jun 02, 2007 9:59 am

Quoting AirForceOne (Thread starter):
Hey All, I was just wondering if Fighter Jets make contrails.

Yep:


Any powered aircraft can make contrails given the right conditions.


2H4

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airforceone
Posts: 53
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RE: Jet Fighter Contrail

Sat Jun 02, 2007 10:08 am

Just a quick edit, When I ment that the hornet flew to FL300. He had no Contrail.
Thanx
 
2H4
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RE: Jet Fighter Contrail

Sat Jun 02, 2007 10:33 am

Quoting AirForceOne (Reply 2):
Just a quick edit, When I ment that the hornet flew to FL300. He had no Contrail.

The production of contrails is dependent on many factors....altitude is only one. It's quite common for aircraft to fly at very high altitudes without leaving a contrail at all. It's also possible to leave contrails while still on the ground. It's primarily a matter of temperature and humidity.


2H4

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MDorBust
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RE: Jet Fighter Contrail

Sat Jun 02, 2007 10:41 am

Quoting 2H4 (Reply 3):
It's also possible to leave contrails while still on the ground.

I had a car once that left contrails. Had to put more oil in it everyday.  Wink

Seriously though. Cars do leave contrails. That little cloud that follows you around in the winter is a contrail. If you got the temperature cold enough, and the air pressure low enough, that cloud would stick around for quite some time.
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vzlet
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RE: Jet Fighter Contrail

Sun Jun 03, 2007 10:25 pm

One of my favorite rejections shows some nicely persistent contrails from F-15s:
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A pair of Bitburg "Zulu Alert" F-15s chalk up the sky as they run intercepts on each other. Seen from the cockpit of the E-3A AWACS that was controlling the fighters.
"That's so stupid! If they're so secret, why are they out where everyone can see them?" - my kid
 
DeltaGuy
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RE: Jet Fighter Contrail

Mon Jun 04, 2007 1:07 am

Vzlet, there's absolutely nothing wrong with that photo..it's in fact amazingly nice.

The screeners could give two shits about rare photos, especially vintage military...your name has to be Sam Chui to get a photo uploaded it seems.

DeltaGuy
"The cockpit, what is it?" "It's the little room in the front of the plane where the pilot sits, but that's not importan
 
Stretch
Posts: 53
Joined: Fri Jun 03, 2005 3:58 am

RE: Jet Fighter Contrail

Mon Jun 04, 2007 1:17 am

There was a great article in this months Air and Space Magazine about contrails.

http://www.airspacemag.com/issues/2007/june-july/Flight_Lines.php


~Stretch
 
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moriarty
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RE: Jet Fighter Contrail

Mon Jun 04, 2007 5:03 pm

Very interesting article indeed. I really like the thought of geese making contrails  Smile

Really enjoyed your picture Vzlet! Nice contrails on that one!

Nowadays when airliners have various sorts of cameras connected to the IFE, wouldn't it bee cool to have a "contrail cam"? One pointing backwards from the aircraft...  Smile
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vzlet
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RE: Jet Fighter Contrail

Mon Jun 04, 2007 9:29 pm

Thanks for the positive comments, guys. The shot does have some photographic issues, but I thought it was unusual, interesting, and old enough (1981) to have a chance.

I've been doing fine since therapy.  Wink

-Mark
"That's so stupid! If they're so secret, why are they out where everyone can see them?" - my kid
 
Matell
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RE: Jet Fighter Contrail

Thu Jun 07, 2007 7:56 pm

I think the answer has more than adequately been given, but I just had to add at least one pic I took when on holiday in Sweden last year.

Driving back from Kiruna in late November on the E10 I heard a lovely sound, and looked up to see the odd contrail from a few JAS 39 Gripens from F21 (assumed) at Luleå. It was hard to follow what was happening +30,000ft above me, but from the engine noises, contrails, and odd flash of reflected winter light and colour from the aircraft I believe there were at least four Gripens up on an Air-Air training exercise.

I assumed when I took this photo that after being "Killed" the dead aircraft had to exit the engagement to the east, fly a racetrack orbit, before being able to leave the holding point and re-engage to the west (flying right over head in the process)

It was interesting as I figured you could tell the change in throttle setting by the density of the contrail, then several moments later you could hear the change. Unfortunately I didn't witness much of the actual engagements due to light cirrus clouds, occasionally masking the contrail, and I feel the actual engagements were taking place below the freezing layer.

Eventually they made their way further west or onto another ex, so I hurriedly drove the remaining 100km back to the E4. I couldn't believe it, but +1hr later as I approached the bridge crossing the river prior to the Luleå Flygstation exit I saw two Gripens do a low overfly of the airfield break into a tight circuit from upwind and then disappear below the treeline while turning onto final. By the time I got to the military side of the airfield they would've been shut down and the pilots most likely returning their kit.

Things I learnt - 3x optical zoom isn't enough, and when aircraft are about and driving, always have your camera handy!  Sad

Sorry for the long and irrelevant post - but hey, the RM12 is just variant of the F404 that powers the Hornet - and yes they contrail!  Smile

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HaveBlue
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RE: Jet Fighter Contrail

Sun Jun 10, 2007 11:04 pm

Cool post Matell, I enjoyed it and that would have been cool to see.
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