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Question on "smoking" aircrafts

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posted on Apr, 10 2005 @ 08:43 AM
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why do most aircrafts "smoke" while performing high Angle of Attack manuvers ?
















[edit on 10-4-2005 by Stealth Spy]




posted on Apr, 10 2005 @ 09:21 AM
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Because the jet engines are hot and the air around them is cold in the high altitude? It might also be because the aircraft skin temp is higher than the air temp. It is cool looking, isn't it? Love your pics.



posted on Apr, 10 2005 @ 10:29 AM
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Its a moisture/pressure thing. The moisture in the air is ultra compressed and becomes visable in the high pressure area's. Also: The last pic is just a smoke "effect" thats installed for an air show. Clear as day.



posted on Apr, 10 2005 @ 11:36 AM
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It's all to do with areas of low pressure which creates this cloud, normally found over the wings in steep turns and high angles of attack.



posted on Apr, 10 2005 @ 11:44 AM
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what about these :
















external image

how can helicopter's do it ???

which substance is added to colour it ??

Edit: resized one over-sized allowable image

[edit on 10-4-2005 by Seekerof]



posted on Apr, 10 2005 @ 11:55 AM
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hehe... those are gas canisters mounted on the aerobatic aircraft for display puposes.. thats why they're colored..They can be switched on and off by controls in the cockpit..
Thats a silly Q stealth.. You should know this!


Btw there are some really cool B-2/F-117 avpour condensation pics on some thread (forgot the name) which I saw a long time ago..

People were asking if those moisture clouds (more oval in the case of the B-2 because of its shape) were plasma stealth in action!! hehe..



posted on Apr, 10 2005 @ 12:00 PM
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So what are those aircraft smoking you ask. I'd say it's crack. Could also be heroin or ecstacy



posted on Apr, 10 2005 @ 12:11 PM
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Originally posted by Daedalus3
hehe... those are gas canisters mounted on the aerobatic aircraft for display puposes.. thats why they're colored..They can be switched on and off by controls in the cockpit..
Thats a silly Q stealth.. You should know this!



i suspected something like that but could'nt be sure.

is the gas mixed with some kind of colored powder or is it an inherently coloured gas?

which gas is used ? (my best guess would be vapourised dry ice, i.e solid C02)



posted on Apr, 10 2005 @ 12:27 PM
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I worked on Canada's Snowbird Air Demonstration Team and they have 2 fixed (can't be dropped) containers that are filled with diesel oil witch is piped to the back of the hot tailpipe.The smoke is white but blue or red dye can be added for different coloured smoke.



posted on Apr, 10 2005 @ 12:42 PM
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Originally posted by Stealth Spy
which gas is used ? (my best guess would be vapourised dry ice, i.e solid C02)


wouldn't CO2 dissapate too quickly and become invisible? Especially the bits that get caught up in the exhaust...the problem is made a lot worse with afterburners. Anyway I though some just add gas straight to the engine exhausts. If so then could you add this system to a heli?



posted on Apr, 10 2005 @ 12:47 PM
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Originally posted by colsislander
I worked on Canada's Snowbird Air Demonstration Team and they have 2 fixed (can't be dropped) containers that are filled with diesel oil witch is piped to the back of the hot tailpipe.The smoke is white but blue or red dye can be added for different coloured smoke.


but if there is an audience below, would'nt diesel vapour be injurious to their health ??

if desiel vapours get sucked into the plane's exhaust's and get mixed with the pure aircraft fuel in the combustion chamber, would'nt any further complications arise ??



posted on Apr, 10 2005 @ 02:47 PM
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Hey. That's no smoke...


That is the sonic boom as the craft is near the sound barrier. It is vibrating air particles.


jra

posted on Apr, 10 2005 @ 04:51 PM
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Originally posted by Bombardier
Hey. That's no smoke...


That is the sonic boom as the craft is near the sound barrier. It is vibrating air particles.


I'm assuming you're talking about the first set of pics. But that's inncorrect. None of those jets are breaking the sound barrier, they are just preforming some maneuvers and tight turns. As has been stated by skippytjc and Black Watcher

Now I think this is what you were thinking of Bombardier

external image

Edit: resized one over-sized allowable image

[edit on 10-4-2005 by Seekerof]



posted on Apr, 10 2005 @ 04:56 PM
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I swear that last picture looks photshopped (or equivalent) it cannot be real surely



posted on Apr, 10 2005 @ 06:14 PM
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Originally posted by Infidellic
I swear that last picture looks photshopped (or equivalent) it cannot be real surely


If you're talking about the Tomcat, it sure can. contrails and condensation things when going supersonic are literally, in common terms, clouds. The reason why they don't last long is because they're below the natural cloud cover, where they don't naturally form.

Those other pics are definitely from smoke canisters. What they use, I'm not sure, as it would most likely vary from country to country. Google might help.

That F/A-18 is sweet.



posted on Apr, 10 2005 @ 07:27 PM
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Yeah... when jets are breaking the sound barrier or close to it, water vapor around them forms quick clouds that disperse as the jet passes into the supersonic realm. And this F/A-18 is not photoshoped.




[edit on 10-4-2005 by WestPoint23]



posted on Apr, 10 2005 @ 07:36 PM
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Stealth Spy:


why do most aircrafts "smoke" while performing high Angle of Attack manuvers ?

The "smoking" effect does not always happen while performing high AOA manuevers.
Examples:



What you are seeing is condensation clouds or condensation contrails, as represented in Su-30MK1, FA-18, and MiG-29 photos.
A past ATS thread concerning condensation clouds being emitted by aircraft can be found here:
B2 - Photo of electro-gravitic field kicking in

The other photos [excluding the three mentioned above] that you have displayed/posted are not 'natural', but are caused by installed smoke emitters. They are normally used in air shows to give more 'flare' to the air acrobatics and demonstrations. I do believe that Xar Ke Zeth has pretty much eluded to the same.







seekerof



posted on Apr, 10 2005 @ 08:07 PM
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The first series with the "smoke" coming from the leading edges of the plane are called "Vapor trails"

The other colorful ones are caused by gas canisters or smoke rockets. Sometimes aerobatic planes will inject inpurities into the gas exaughts taht will cause the smoke trails to form



posted on Apr, 10 2005 @ 08:33 PM
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Those are all vapor trails left by the craft while performing sharp manuevers or AOA manuevers. Something to do with Condensation of air on the surface of the aircraft, and because the craft is moving so fast, you can see the condensation tailing off.

I don't know much about the Sound Barrier thing, but I do know that's a purdy pic.

Shattered OUT...



posted on Apr, 10 2005 @ 10:35 PM
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Btw, the picture of the F-15 was taken at an air show [once posted by member jetsetter]. The "smoke" is from wing-tip smoke emitters to 'highlight' the F-15 when it performed a cobra maneuver.




seekerof



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