tag:blogger.com,1999:blog-18654361.post1329204255496002602..comments2023-07-06T15:14:57.204+01:00Comments on JOHN'S BLOG: The Great Contrail ControversyJohnhttp://www.blogger.com/profile/02487495921222083129noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-18654361.post-32943278653037588362009-04-20T17:52:00.000+01:002009-04-20T17:52:00.000+01:00Everyone agrees that it's water vapour condensing....Everyone agrees that it's water vapour condensing. The question is why...<br /><br />I'm not saying that turbulence from the edge of flaps is the only cause of contrails; just that it was in this case. And their very existence sometimes makes the edge of the wing jagged.Johnhttps://www.blogger.com/profile/02487495921222083129noreply@blogger.comtag:blogger.com,1999:blog-18654361.post-9679942776312179992009-04-20T17:10:00.000+01:002009-04-20T17:10:00.000+01:00I thought it was the condensation theory. Check th...I thought it was the condensation theory. Check this pic (dispersion): <br />http://upload.wikimedia.org/wikipedia/en/0/05/Iridescent_contrail.jpg<br /><br />Why, during a plane's cruise would the flaps be utilised? They usually only have 2 purposes,<br />1] Creates extra LIFT [Take off]<br />2] DRAG [Landing]Michaelhttps://www.blogger.com/profile/07188584784774545684noreply@blogger.com