Transterrestrial Musings

Defend Free Speech!

Amazon Honor System Click Here to Pay

Site designed by

Powered by
Movable Type 4.0
Biting Commentary about Infinity, and Beyond!

« Irony At Epcot | Main | The Zero-Sum Candidate »

Crossing Their Fingers

It looks like NASA's not going to abandon the ISS. That seems sensible to me.

I'd like to know where they get the 1/124 number for probability of having to evacuate. But it makes sense, given that they're already down at least one (and actually, more like two or three) level in the fault tree, that you can accept a lower reliability for the lifeboat. Lifeboats, after all, have traditionally been pretty iffy propositions. It's not reasonable to demand high reliability of them. That was one of the complaints that I used to have when working on CERV--that the requirements were overspecified for something that was only for use in an emergency.


0 TrackBacks

Listed below are links to blogs that reference this entry: Crossing Their Fingers.

TrackBack URL for this entry:

Leave a comment

Note: The comment system is functional, but timing out when returning a response page. If you have submitted a comment, DON'T RESUBMIT IT IF/WHEN IT HANGS UP AND GIVES YOU A "500" PAGE. Simply click your browser "Back" button to the post page, and then refresh to see your comment.

About this Entry

This page contains a single entry by Rand Simberg published on May 20, 2008 5:39 AM.

Irony At Epcot was the previous entry in this blog.

The Zero-Sum Candidate is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.

Powered by Movable Type 4.1