On Sun, 15 Nov 2020 09:47:09 -0500, JF Mezei
wrote:

On 2020-11-14 12:10, Ed Ruf wrote:

How about learning to do a simple search for yourself? Do you always
need to be spoon fed here?


So this group should return to the sex discussions then?

No just that is you took a little initiative to look down a provided
path you might get to your desired answer sooner. Or you might come
across a reference with a large amount of info such as the Stanford
PDF I linked to which came up among the first entries in a google
search and shows where the MCC igniter is.

On Sat, 07 Nov 2020 23:08:34 -0800, Snidely
wrote:

Wikipedia suggests that the RS-25
has it still ... dual-redundant spark igniters in the injectors of the
preburners.

If you follow this Wiki article on the RS-25 to the MCC section you
would see it says the same.

"The mixture is ignited by the "Augmented Spark Igniter", an H2/O2
flame at the center of the injector head."