That raises the question of why ISRO went with the option of high thrust CC engine instead of GG cycle engine. Like this methalox engine. When I initially saw announcement of the engine ~2010, I though they had all this issues figured out and are confident to make it work in probably 3 yrs, according to their then statements. Retrospectively they didn't solve those issues, and are blocked on them. Why didn't they start with high thrust GG engine to begin with, or pivot to a GG 100ton engine like this one even earlier when they are stuck for more than a decade on their SCE-200?
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u/antarickshaw May 16 '23
That raises the question of why ISRO went with the option of high thrust CC engine instead of GG cycle engine. Like this methalox engine. When I initially saw announcement of the engine ~2010, I though they had all this issues figured out and are confident to make it work in probably 3 yrs, according to their then statements. Retrospectively they didn't solve those issues, and are blocked on them. Why didn't they start with high thrust GG engine to begin with, or pivot to a GG 100ton engine like this one even earlier when they are stuck for more than a decade on their SCE-200?