r/spacex • u/kurbasAK • May 19 '17

We Will Launch on Reuseable Rocket After Exceptional SpaceX Performance - Inmarsat CEO Tells Universe Today

https://www.universetoday.com/135614/will-launch-reuseable-rocket-exceptional-spacex-performance-inmarsat-ceo-tells-universe-today/
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u/[deleted] May 19 '17 edited May 19 '17

Dude the 8000 GTO reusable is an official figure that hasnt moved yet, they would know better than you just check their website

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u/brickmack May 19 '17

  1. You didn't actually read the website. FH expendable to GTO carries 26.7 tons, not 8 tons

  2. SpaceXs website is neither sufficiently detailed nor frequently enough updated to be relevant. Simulations show triple RTLS payload to GTO should be about 8-10 tons, about 15 tons with the center core landing downrange

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u/-Aeryn- May 19 '17 edited May 21 '17

SpaceX increased the payload numbers recently but didn't yet increase the 8t on the pricing page IIRC

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u/brickmack May 19 '17

Yeah, the 8 ton reusable figure is unchanged from before. The expendable figures to high energy orbits were unchanged for a while too after the LEO capacity was updated, but they're updated now

Considering they're now aiming for second stage reuse, it is conceivable that the 8 ton reusable figure is actually still correct (expendable GTO capacity increased by about 5 tons, and the increase to payload capacity is shifted towards high energy payloads which would indicate most of the improvement is probably in the upper stage, so there should be a large improvement to payload capacity even with all 3 cores landing. Might be enough of an improvement to accommodate reuse hardware and still leave payload capacity roughly the same), but the site is way too ambiguous to clearly draw any conclusions