Firefly Aerospace's new rocket engine spouts green flames in 1st 'hot fire' test (photo)

[Admin]

Firefly Aerospace shared a photo of the first hot fire test of its new Miranda engine, slated for use aboard the upcoming Antares 330 rocket being developed along with Northrop Grumman.

Firefly Aerospace's new rocket engine spouts green flames in 1st 'hot fire' test (photo) : Read more

 

[buntajames]

Isn't Green flame from it being engine rich? Like it's burning the engine itself?

 

[Brent.Allsop]

Yes. There must be something making the methane and oxygen burn green. What is that?

 

[eason]

Yes. There must be something making the methane and oxygen burn green. What is that?

I think it is similar to TEA-TEB, which is a pyrophoric mixture used as an ignition fluid in rocket engines.