[AR] Re: SpaceX F9 Launch/Update -- Live Link
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Sun, 27 Dec 2015 23:01:02 -0500 (EST)
On Sat, 26 Dec 2015, I wrote:
However however, there is clearly no great problem in building big
liquid engines for tens of flights, if you try. The F-1 was specified
(and thoroughly tested to verify that it met the spec) for 20 cycles and
2250s of operation, just to support development adequately.
Addenda: Flight F-1s were fired an average of 12 times before flight.
At the time, folks thought that on a reusable vehicle, an operational life
of 20 flights ought to be straightforward, with a mid-life overhaul after
the first 10.
Henry
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