/sci/ - Science & Math

Can I get a Fast Breakdown on the current Artemis Program plans? Bald Mannley was talking about bills that could limit it to just a single landing and no gateway?

>>11197083
>For LEO you use a pusher. For BLEO you use a tower, since an LAS at that point is dead weight you want to get rid off ASAP.

The decision to use a massive solid-fuel puller instead of a pusher on SLS actually stems from the fact that despite being heavier, the solid puller generates significantly more thrust than any pusher system at 1800KN of thrust (about the same as SpaceX’s Raptor). To put that into comparison, Crew Dragon’s 4 SuperDraco engines produce 281KN all together. Why does SLS’ LES require this much thrust, you ask? Because it needs to outrun two massive SRBs which could potentially explode/unzip a lot quicker and far more violently than any liquid booster explosion.