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The key parts of SN11 were manufactured before SN9 was launched, obviously it can't incorporate design feedback from that. SN15 (the next launch) has a tweaked
by PeterisP 6y ago
The key parts of SN11 were manufactured before SN9 was launched, obviously it can't incorporate design feedback from that.
SN15 (the next launch) has a tweaked design of engines, but once again they are going to have multiple launches with these specific engines even if data from the first launch suggests some improvements. In fact, they had originally planned to do even more testing with this design (SN12,SN13,SN14 which had a bunch of work already done).
- avmich 6y agoF-1 development included creating a particular debugging technique for rocket engines - bombs were put into chamber and exploded to create instabilities, so engine dampening capabilities were tested. I wonder if while making Raptors some interesting techniques were created. For F-1 the result was so good the production engines routinely dampened instabilities, so Saturn-V didn't have this kind of problem in flight. Raptors seem to be less developed - of course, they have much higher chamber pressure and efficiency...