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Dec 13, 2022Liked by Ian Vorbach

The comment on the price of a Falcon 9 is a little insincere. Yes, a new booster will cost you upwards of $60 million, but a reused booster IS cheaper, at around $58 million last I checked. Not the super low price drop expected, but there is a saving.

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Thanks for the comment and taking the time to read! I'd be interested to see a citing of the $58M. Not saying its wrong, but I'm basing my number on what seemed to me to be the most reliable source which is SpaceX's current website https://www.spacex.com/media/Capabilities&Services.pdf

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Dec 12, 2022Liked by Ian Vorbach

Last published cost for sls was circa 4.2b$. This assumes that the vehicle os extensively used in order to amortise the circa 24b$ dev costs. If starship works as expected, i would be surprised if more than 5 sls launchers are realised. So actual cost would be well north of 5b$ for this fully disposable shuttle tech reheat.

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To make matters worse, I believe the $2B per launch I used was actually the incremental cost for future launches and didn't even account for the development costs you listed

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