Message:Space X combination of fuel and oxidizer is strange to me. I assume the cryo methane has better weight to thrust then a highly compressed gas or using just kerosene. But storage has got to be expensive. Hazard of letting it boil to a gas is significant problem.
Cryos seem an expensive cheat to get off-world. Both Voyager 1 and Voyager 2 were launched into space using a Titan IIIE-Centaur rocket. Go Titan! Most reliable rocket ever made.
Hey yeah, I launched Titans. Hypergols go boom and will poison you to boot. But Hypergols seem easier to load and offload in case of scrub. Most Titan failures were in solids. Space X doesn't use any of those do they?
https://www.youtube.com/watch?v=5mvIsb4S7-g
You can still hear the sound of motors still arriving at fallback lot even after you can see rocket went boom. That Titan failure was right before I was shifted to the program from Space Shuttle. There was a failure before I arrived and one immediately after. Got to say LUCK is the most important commodity. Someone needs to pray. Even as the boss says Attention to Detail is why they kept an ass-pain like me (and the other rocket engineers) on-site.
https://www.youtube.com/watch?v=9MT_07-DgxY
Think that was before my time, just an ICBM on a pad. But still very pretty, as I recall, from forty years ago.
Yours,
IronRed
19-Jun-2025