- Jun 27, 2020
Somanath sir confirmed that LPSC is developing a 80-100T thrust class throttlable Methalox engineSCE-200 and Merlin have similar enough specific impulse. As for deep throttling, yes it won't go down to 40% but SCE-200 can throttle down to 60%. Rest, clustering should take care of it. And ISRO did say they are designing it with reusability upgrades in mind.
No matter, even if SCE-200 isn't fit for the job, continue to develop the methalox but in the meantime, they shouldn't abandon existing plans of HLV based on cluster of 4 or 5 SCE-200.
Also, we need SCE-200 class methalox if we want to build a Starship-Superheavy kind of stack. Raptor is similar thrust and specific impulse. And if we ever build a Moon rocket, it would make a lot of sense to go down the Starship-Superheavy route instead of the Saturn-V and SLS route. Even the Chinese realized this and have now modified design of the Long March 9.
Watch from 17:22 in this video, he confirmed it here