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xixixao • today at 12:15 AM • 2 replies • view on HN

“the system is more complicated” is not a good argument for it never working.

A passenger airliner is vastly more complicated than a parachute, yet both work.

(You’re also in a lot of trouble if you don’t hit the runway in an airliner)


Replies

echoangle • today at 12:21 AM

The problem isn’t “it’s more complicated” but more “if something goes wrong there’s not a lot you can do”. There’s basically no redundancy and a lot of single points of failure. Having two sets of Parachutes is a lot harder to screw up than a powered landing.

With a normal capsule, you have multiple fuel tanks and redundant RCS thrusters so you’ll practically always be able to deorbit and land (since you also have redundant parachutes). If starship has a fuel leak, how are you going to land, even if you’re able to deorbit?

computerex • today at 1:55 AM

An airliner has layers upon layers of safety redundancies.

There are multiple flight computers. Practically every essential sensor has copies. Oxygen generation, ram air turbine, life jackets, inflated boats. Onboard radar. TCAS. The airplane itself glides. Then there are thousands of procedural rules and regulations for safe operation.

A system like starship that relies on precise active propulsion has no such room for error.