NASA's new engine

NASA has tested their rotary-detonation. How does it compare with the 1337?

1337 is supposed to have 320 [metric] ton[ne]s of thrust from 450 bar in the chamber. That's not much more than the Raptor 3.2, and I_sp holds steady at 327 (N/N)s. 1337 makes up for that by not being as heavy - it's only 1100 kg (1.1 tonnes). Deletion rampage.

The present Starship prototypes are on previous generations but, SpaceX is working other angles. Like getting the thing to orbit.

NASA promise 2.636 tonnes of thrust; and it runs for 251 seconds. And we're not told the mass of the beast except that it, like 1337, is "lightweight". By a factor of a hundred?

I take it that NASA isn't considering this engine to take off from Earth; this is about correcting trajectories once already in space. Or maybe NASA're just counting on the Harvard grads in USG to do what they do.

BACKDATE 12/21