Dec 19, 2021 · Basically, it is a magnetic sail combined with particle accelerator. Coils catch up protons from solar wind (red), change their direction to ...

Aug 24, 2021 · Yes – See Sutton, or other refs; the Russian RD-170 has a single-stage ox-rich turbine producing 250,000hp from about 1,800kg/s mass flow, with ...

Oct 30, 2023 · These still seem to be Raptor 2 engines so center engines have 2.3 MN thrust at sea level and 2.52 MN in vacuum. The vacuum engines are not used ...

Dec 5, 2021 · Considering that measuring the renders on Archimedes suggests an ER of around 20, split the difference between those two engines, add a ~6% ...

Dec 3, 2021 · This is about Neutron's new Archimedes engine not Merlin, Raptor or BE4. Here is what I know from todays news.

Nov 17, 2021 · A high ISP engine means a combination of faster transits, less fuel, less ISRU fuel, more payload. But: you don't get high ISP from a "design ...

Jan 2, 2022 · Which engines will be better in weight efficiency, ISP, reliability, power, etc.... In short, which will be the best Methalox engine in this ...

Apr 10, 2021 · The problem is thrust. With the 28 standard sea-level raptors at 25 MPa the "lift off" TWR is 0.91. Even at 30 MPa the TWR is only 1.09 which ...

Jan 19, 2024 · Seems a lot simpler, and allows the doubled thrust capability of having all 6 engine ignited which you lose with this notional 'dual bell' ...