Latest posts · Page 2054

@Kristennetten Yeah

@OwenSparks_ Sure

The great thing about restaurants is that you get to hang out with strangers! - SJM

The future currency of Earth

@redlineshifter Just a scratch

Much wow!

@RationalEtienne 🖤

@wonderofscience Destiny

@RenataKonkoly @Teslarati @woodhaus2 Franz was essential

@Erdayastronaut @josh_bickett @ajtourville @SpaceX That said, the ship landing burn has a clear solution. My greatest concern is achieving good payload to orbit with rapid & full reusability, without which we shall forever be confined to Earth.

@Adamklotz_ @Erdayastronaut @josh_bickett @ajtourville @SpaceX Will still use hot gas maneuvering (RCS) thrusters, as ~5X more efficient than nitrogen (300 sec vs 60 sec Isp)

@Erdayastronaut @josh_bickett @ajtourville @SpaceX Higher Isp too

@Erdayastronaut @josh_bickett @ajtourville @SpaceX Intuitively, it would seem so, but turbopump-fed Raptors have much higher thrust & propellant mass fraction than pressure-fed gas thrusters & they’re already there

@brendan2908 @NASASpaceflight Yes

@mikko @Darudevil It’s true!

@josh_bickett @ajtourville @Erdayastronaut @SpaceX Yeah. By default, engine with least lever arm would shut down if all 3 are good.

@ajtourville @Erdayastronaut @SpaceX Yes, but engines have a min throttle point where there is flameout risk, so landing on 3 engines means high thrust/weight (further away from hover point), which is also risky

@Adamklotz_ @Erdayastronaut @SpaceX Yes

@Erdayastronaut @SpaceX It was foolish of us not to start 3 engines & immediately shut down 1, as 2 are needed to land

I am become meme, Destroyer of shorts