On 6/9/2020 7:53 AM, Jeff Findley wrote:
Raptor is a *full flow* staged combustion engine. All of the LOX and
liquid methane flows through their respective preburners. Some very
tiny amount of oxygen and methane are used for other purposes, like
pressurizing the tanks, but *everything* that goes into the combustion
chamber goes through the preburners. That's why it's called "full
flow".


Yep. I should have been more clear about that in my answer as well.

Dave