[stm]

I know passengers are permitted to drink on flights but pilots can now as well?

[johnny7]

Unless its dimensions can be estimated by radar... visual descriptions of a UFO’s size are usually worthless.

[Boundless]

duplicate

‘Mile-wide UFO’ spotted by British airline pilot
http://www.freerepublic.com/focus/f-news/1854931/posts

Mile-wide UFO’ spotted by British airline pilot
http://www.freerepublic.com/focus/f-chat/1854587/posts

One of those earlier is locked, with an admin
admonishment to use Search. “UFO” fails to find it,
however.

Anyway, I’m betting lennie.
(lenticular cloud)
At their thin edges, they can get quite colorful.
Used to watch ‘em between sailplane flights.