Assertion: space shuttle's engine | /r/HasProperty | certified to 106%
Facets:
value: for heavy international space station payloads
type: PURPOSE
Source sentences:
text: Changes included a new large throat main combustion chamber (which had originally been recommended by Rocketdyne in 1980), improved low pressure turbopumps and certification for 104.5% RPL to compensate for a 2 seconds (0.020 km/s) reduction in specific impulse (original plans called for the engine to be certified to 106% for heavy International Space Station payloads, but this was not required and would have reduced engine service life).