Smash Notes

Back to #414 How SpaceX Works.

Why Do Rockets Cost Far More Than Materials?

David Senra, reading Max Olson, says the materials cost of a rocket was around 2% of the typical price, a crazy ratio for a large mechanical product, and that consistently being the low-cost provider might be the hardest advantage to maintain. A car's raw materials are maybe 20 to 30% of the sticker price, and consumer electronics are similar. On a rocket, 98 cents of every dollar was going somewhere other than what the rocket was made of, and the money seemed to go to three places.

Supplier markup stacked through contract layers, and each tier added 15 to 30 percent margin. Custom designs could not achieve manufacturing scale. Expendable hardware was thrown away after every flight. None of the three are laws of physics. Traditional aerospace treated high costs as fixed constraints. The alternative Olson lays out is to treat the costs as variables and capture that 98%.

SpaceX has done more than anything to minimize the cost of getting things to space. The vision is humanity expanding across the solar system, but the lever is the cost of moving mass from Earth's surface to orbit and beyond. Launches, landings, and reuse all serve that goal. Low cost has to shape product design, company structure, and what gets built. It cannot be an initiative or an afterthought.

Grokipedia·David Senra·Earth

Transcript

#414 How SpaceX Works ·

Founders

More from this episode

  1. What Is the Idiot Index?David Senra, reading Max Olson, says the Idiot Index is the ratio of a part's actual cost to the cost of its raw materials.
  2. How Much Did SpaceX Spend to Develop Falcon 9?David Senra, reading Max Olson, says a NASA study found SpaceX developed Falcon 9 for roughly $440 million.
  3. Who Kept SpaceX From Bankruptcy?David Senra, reading Max Olson, says Gwynne Shotwell is the reason SpaceX did not end up as another very impressive, very bankrupt space startup.
  4. Why Did SpaceX Delete Falcon 9 Folding Fins?David Senra, reading Max Olson, says SpaceX deleted the folding mechanism on Falcon 9 grid fins after simulations showed fixed fins were acceptable.
  5. Why Is SpaceX So Far Ahead of Other Rocket Companies?David Senra, reading Max Olson, says SpaceX is so far ahead of other rocket companies because the hard part is not any single tactic.

People

More answers like this

The other side

More with David Senra

Related episodes

Plays from this note through the rest of the episode.

Weekly highlights

One letter a week.

The notes worth hearing, with the minute they were said.