3 ms·
Today's crash was due to failure of one engine to restart. Briz and Fregat Russian upper stages are routinely restarted, with ~ 98 % success, same with Ariane E
by HarryHirsch 6y ago
Today's crash was due to failure of one engine to restart. Briz and Fregat Russian upper stages are routinely restarted, with ~ 98 % success, same with Ariane EPS and Chinese Yuanzheng. It's doable, just not for Space-X.
- ubercore 6y agoYou realize the Raptor engine is different from the Merlin used in Falcon rockets, right?
- CydeWeys 6y agoYou're comparing a prototype against decades-old, non-reusable rockets.
- avmich 6y agoBriz and Fregat start much smaller - 20 kN - engines with no time constraints, while Starship re-lights 2200 kN engine and rocket immediately does rotation by 90+ degrees, and time is of essence.
- HarryHirsch 6y agoWhere do thrust and chamber pressure even come into the equation? It's not that the engine exploded, the thing failed to ignite.
- avmich 6y ago> Where do thrust and chamber pressure even come into the equation? Thrust given to show difference in engine scale. Pressure isn't shown - what do you mean? :) The point is that re-light of Briz and Fregat is very different and so hard to compare.