Category Archives: Business

Stop-Start Technology

It looks like Mercedes has figured out how to make it work properly.

I remember we first encountered it about seven years ago while shopping for VWs (we ended up getting a Toyota instead). I’ve been getting it in rental cars a lot lately, and I don’t like it. It seems like its likely to make a starter fail a lot sooner, unless they make it a lot more rugged. If I owned a car with it (that wasn’t like the Mercedes set up) I’d probably disable it.

An ELEO Thought Experiment

Imagine that you could have 150,000 tons of cargo (or people) delivered to equatorial LEO annually, at $60/lbm. What would you do with it? What are the markets? We’re talking on the order of $5B/year.

[Update late afternoon]

Note that that’s less than a quarter of the NASA budget…

For that money, we could have 150,000 tons of material/people in orbit, or pay for another year of SLS/Orion.

[Friday-morning update]

Thanks to a comment, I went and rechecked, and found an error in the spreadsheet. The cost is more like $20/lbm.