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Anthony Colangelo

I’m Anthony Colangelo.

Find my writing at Main Engine Cut OffA List ApartCognition, and right here.


Falcon 9 Block 4

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Block 4 of the Falcon 9 is debuting with the launch of CRS-12, and Block 5 will debut on the uncrewed Dragon 2 demo mission.

AR1 Costs Climbing Past $228 Million

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The total AR1 agreement is valued at $804 million, so it’s just about halfway there. Worth noting that the Falcon 9 launch vehicle was developed for $390 million. And that includes the cost of Falcon 1 development.

Thanks to July Patrons

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Thanks to the supporters of Main Engine Cut Off for the month of July. If you’re getting some value out of what I do here and want to send a little value back to help support Main Engine Cut Off, head over to Patreon and donate as little as $1 a month—every little bit helps.

The TDRS-M/CRS-12 Shuffle

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There’s a bit of a logjam out at the Cape: the launch dates of TDRS-M and CRS-12 fell very close to each other, and they’re both high-priority missions for NASA. This situation sheds some light on future SpaceX operations in Florida.

The Reusability Inflection Point

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The current pricing SpaceX uses makes no sense in the high-level, long-term view. It’s pretty obvious that the model grew out of an expendable-minded era, and that SpaceX is sticking to it because the market itself has not yet changed its thinking.