| Human-rating Certification |
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Information AboutHuman-rating Certification |
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Human-rated or '''man-rated''' are terms used to describe the certification of a Rocket or Airplane as worthy of transporting humans. NASA now uses "Human-rating" when describing requirements for these systems. The terms "man-rated" and "human-rated" are mostly used interchangably. In Spaceflight , a human-rating certification is an assurance that the engineering, health and safety features of a Spacecraft will prevent fatal or permanently disabling injuries to passengers and crewmembers. In the United States , the National Aeronautics And Space Administration (NASA) has published ''NASA Procedural Requirement 8705.2 - Human Rating Requirements for Space Systems'', describing a certification process to "protect the health and safety of humans involved in or exposed to space activities." 1 There is a widespread belief that designing and operating a human-rated rocket is substantially more difficult than doing so for a rocket which carries only cargo. It is noteworthy that the and Columbia accidents, the criteria used by NASA for human-rating spacecraft have been made more stringent. An airplane or rocket is considered as a man-rated vehicle if it satisfies a certain threshold of safety for its human occupants. This may include redundancy of certain components and certification by regulatory agencies. For rockets, launch vehicle reliability in the range of 98 percent probability for launch success is good. REFERENCES SEE ALSO |
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