3 ms·
The observed failure rate during fuel loading is 2% with a big error bar, based on one accident. And the cause of that accident has been mitigated. The expecte
by greglindahl 9y ago
The observed failure rate during fuel loading is 2% with a big error bar, based on one accident. And the cause of that accident has been mitigated.
The expected failure rate for the LAS is pretty high, high enough that the loss of crew/mission statistic computation doesn't include the LAS.
- mikeash 9y agoA bit of a nitpick: the observed failure rate is quite a bit lower. Each launch involves at least two fuelings, since they do a static fire before every launch (which is when the accident occurred). Every booster also gets tested at their facility in Texas, and there have been a lot of scrubs after fueling, so the average number of fuelings per launch is probably 3 or so. That’s around 150 total fueling events for the Falcon 9, or around 100 if you only count the ones with densifier propellants, making the failure rate so far around 0.6-1%.