<sod>* Raptor ER50, with an expansion ratio 50 nozzle; three of these [[Gimbal#Rocket_engines|gimbaled]] engines are used for maneuvering the [[ITS launch vehicle]] second-stages; and these engines will be used for retropropulsive landings on Mars, and potentially other Solar System objects.{{Citation needed|reason=the cad models would suggest these are different, but i don't think that's enough unless there is better info|date=October 2016}} <eod>
<sod>* Raptor ER50, with an expansion ratio 50 nozzle; three of these [[Gimbal#Rocket_engines|gimbaled]] engines are used for maneuvering the [[ITS launch vehicle]] second-stages; and these engines will be used for retropropulsive landings on Mars (with mean [[atmospheric pressure]] on the Martian surface {{Convert|600|Pa|kPa|abbr=on}}.<ref name=bolonkin09><eod>