<sod>The second-stage of the orbital launch vehicle—which is also the interplanetary transport vehicle—<!-- where the second stage is both a traditional second stage—used to accelerate the vehicle to [[orbital velocity]]—and is also a [[space capsule]] capable of supporting long-term transits to interplanetary locations. -->is a {{cvt|17|m|ft|0|abbr=on}}-diameter<ref name=MuskTweetPreSpeech/> vehicle referred to as the [[Interplanetary Spaceship]].  It will be powered by six vacuum-optimized Raptor engines, each producing {{convert|3|MN|lbf|abbr=on}} thrust,<ref name=preAnnounceEngineOverview>[http://spacenews.com/spacex-performs-first-test-of-raptor-engine/ http://spacenews.com/spacex-performs-first-test-of-raptor-engine/]</ref> and will also have three sea-level-nozzle Raptor engines for maneuvering (and which will also be used for initial ascent from the surface of Mars).<eod>
<sod>The second-stage of the orbital launch vehicle—which is also the [[interplanetary space|interplanetary]] [[space transport|transport]] vehicle for both cargo and passengers—<!-- where the second stage is both a traditional second stage—used to accelerate the vehicle to [[orbital velocity]]—and is also a [[space capsule]] capable of supporting long-term transits to interplanetary locations. -->is {{convert|49.5|m|ft|sp=us|abbr=on|adj=on}}-long and {{convert|17|m|ft|sp=us|abbr=on|adj=on}}-diameter at its widest point, and is capable of transporting up to {{convert|450|tonne|lbs}} of cargo per trip to Mars.<ref name=nsf20160927a/><eod>