I am having a little trouble figuring out what these strange clouds are. You have a cloud forming off of a fighter jet when it breaks the sound barrier, but this is a different situation.enter image description here

  • $\begingroup$ @mins Ah, yes. Thanks, A wee typo. I'll edit. Shall we delete the other comments to clean up? $\endgroup$ – Simon Sep 1 '15 at 9:28
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    $\begingroup$ but this is a different situation. no it's not. Both condensation caused by decompression $\endgroup$ – Simon Sep 1 '15 at 9:29
  • $\begingroup$ @Federico: Ethan doesn't say that (the link to the duplicate was added after he wrote) $\endgroup$ – mins Sep 1 '15 at 14:09
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    $\begingroup$ Duplicate questions shouldn't be downvoted just for being duplicates. Being a duplicate doesn't make it a bad question, just a redundant one. $\endgroup$ – David Richerby Sep 10 '15 at 7:51
  • $\begingroup$ Ethan, what makes you think that breaking the sound "barrier" produces clouds? Condensation cones happen only in subsonic flight. $\endgroup$ – Peter Kämpf Sep 10 '15 at 8:02

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