what caused this to happen?

novarock

The missus spied this a couple of mornings ago, have never seen a contrail like this?

jfSDAS

Crow Instability

Some info at http://www.xweather.org/crow-instability and the ubiquitous Wikipedia entry http://en.wikipedia.org/wiki/Crow_instability

Great photo btw!

John

V1

... Oh so everything comes back to Crows...
Sponge Bob, I believe you are the resident expert on Crows?
How do Crows leave contrails? And why are they unstable ?

Larbre34

In a word, this:

http://en.wikipedia.org/wiki/Wingtip_device

Sponge Bob

V1 wrote: »

... Oh so everything comes back to Crows...
Sponge Bob, I believe you are the resident expert on Crows?

None of the crows around here can fly that high.

It was evidently a Pulse Jet

https://www.youtube.com/watch?v=k79auZA-ls8

V1

You sure it wasn't this?


Rocket_Crow.jpg

Sponge Bob

I'm not sure after seeing that.

eskimocat

just have these pictures in my head after the last couple of posts of either a plane or a crow with rocket strapped on its back..poot poot poot pootting across the sky like a little Honda 50... giving the odd back fire as it goes.... :pac: