Starship sn4 explodes on pad

Starship sn 4 explosion
Credit-nasa spaceflight/boca chica gal

On may 29 spacex starship sn4 undergoes RUD(rapid unscheduled disassembly)following a successful fifth static fire of sn 4 and 3rd static fire with sn 20 raptor engine, prior to static fire workers left the pad for static fire then the fuelling begins after that the siren was heard marking the start of the 10 minutes countdown to static fire and it did happened without any secondary fire but after a few minutes huge venting starts coming off from the bottom of the starship ,it looks like it was liquid oxygen but who knows if methane was also mixed with that ,the vent started to go towards the flare stack(flare stack is a fire coming off from a pipe burning the boil off of the methane to dispose it safely in the atmosphere)and it seems like it acted like a matchstick igniting the vent which led to a huge explosion .The flare stack is the main concern for a long time, nobody wants that big fire near a rocket filled with fuel and oxydiser.Elon tweeted a few weeks back that they will use solar panel to condense the boil off of methane back to fuel tanks but unfortunately anomaly happened before that could happen ,even if the winds were in opposite direction we might have not seen that explosion.

Remains of sn 4(credit-s padre twitter)

   No matter what has happened sn 5 is ready waiting in the high bay with parts of sn 6 ready for stacking .Yes this is a setback but we all know the spacex method of rapid prototyping  and design change which is build-test-fail-fix-repeat.spacex will fix this issue and we hope that sn 5 will not only do the 150 m hop but also longer flights with three raptor .

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