00:00When it comes to chamber pressure it gets really exciting. The Recta operates at 330 bar while the
00:06BE-4 is only at around 180 bar. This shows the fundamentally different strategy.
00:13SpaceX focuses on maximum efficiency, maximum performance and maximum stress for the hardware.
00:19Blue Origin takes the more relaxed approach with lower pressure, less material stress and therefore
00:24a longer lifespan. So far, it is all still theory because no BE-4 has been reused yet and Raptor
00:322
00:33has also only been reused a single time so far on Flight 7. Strategically speaking, that is exactly
00:40where SpaceX and Blue Origin want to go. Reliable and sustainable reusability of all systems,
00:48especially the engines. But let's get back to our table. When it comes to thrust to weight ratio or
00:53TWR, the Raptor dominates with 107 to 1 while the BE-4 comes in at 80 to 1. Which means
01:02the Raptor
01:03delivers more thrust per kilogram of weight. So it's more compact and lighter. Less weight usually
01:09also means lower manufacturing and maintenance costs.
01:13So
01:13you
01:14you
01:15you
01:15you
01:15you
01:16you
01:17you
01:17you
01:17you
01:17you
Comments