But some rockets that first flew over 50 years ago are still flying today.
They are upgraded, but the propellants are the same. Fundamental design
decisions made today (such as propellant choice) can have long lifetimes.
On Mon, Feb 12, 2018 at 3:01 PM, <Nels.Anderson@xxxxxxx> wrote:
Gesendet: Montag, 12. Februar 2018 um 22:26 Uhrvery
Von: "William Claybaugh" <wclaybaugh2@xxxxxxxxx>
Careful. Cost will *eventually* be dominated by propellant, but it is
unlikely any rocket being built today will still be operational when that
day arrives.
I inclined to agree. I'm just reporting what I think SpaceX is thinking.