Friday 2010-12-10 Dev. video update and Discussion

[Catseye]

Originally Posted by JG52Uther

Apparently a merlin 45,I don't see any flames:

And another one:

Blue flame is practically invisible in daylight.
I've seen pics of formula 1 racing where after a crash, the driver is trying to get away from flames engulphing him - the video does not pick up the blue flames.

I've also seen exhausts burning blue but at the last part of the flame they start to flicker yellow.

Interesting topic. In my mind I'm beginning to rationalize briefly yellow turning to blue as the system heats up but that is purely a guess by me and I'm sure Oleg will have the definitive answer after seeing all the info being brought forward.