Reply to post: Re: The first reusable?

SpaceX wows world with a ho-hum launch of a reused rocket, landing it on a tiny boring barge

Neil 44

Re: The first reusable?

~680 tonnes of hydrogen/oxygen in the main tank

~450 tonnes of solid rocket fuel per SRB

So that's ~1130 tonnes that can't be recycled as it has burnt!

That means that 900 tonnes aren't burnt - so its about a 1/3 that got reused. I seem to remember the bit that didn't was the aux fuel tank...

(why do NASA quote everything in lbs so I have to convert to tonnes?!)

I do agree that the design of the SRBs was suspect - as was shown when one failed. But like much of the early space stuff, it was very much seat of the pants design!

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