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Ariane 5 appears to have 96% mean reliability. Source: 2021 Space Launch Report – Launch Vehicle by Success Rate (spacelaunchreport.com) - https://www.spacelaun
by Kaibeezy 5y ago
Ariane 5 appears to have 96% mean reliability. Source: 2021 Space Launch Report – Launch Vehicle by Success Rate (spacelaunchreport.com) - https://www.spacelaunchreport.com/log2021.html#rate https://www.spacelaunchreport.com/log2021.html#rate
https://news.ycombinator.com/item?id=29554274 https://news.ycombinator.com/item?id=29554274
- JumpCrisscross 5y agoThe footnote about Lewis Point Estimates is super interesting. "Lewis Point Estimate Determined as Follows. Maximum Liklihood Estimate (MLE)= x/n where x=success, n=tries For MLE<=0.5, use Wilson Method = (x+2)/(n+4) For MLE Between 0.5 and 0.9, use MLE = x/n For MLE>=0.9, use Laplace Method = (x+1)/(n+2) Lewis, J. & Lauro, J., "Improving the Accuracy of Small-Sample Estimates of Completion Rates", Journal of Usability Studies, Issue 3, Vol. 1, May 2006, pp. 136-150."
- Kaibeezy 5y agoConcur. You have to see this thread on it in the NASA Spaceflight forum - https://forum.nasaspaceflight.com/index.php?topic=39928.0 https://forum.nasaspaceflight.com/index.php?topic=39928.0