aeromaneuver in the Martian atmosphere to achieve the proper orbit for Phobos rendezvous. Following exploration, the vehicle performs a Mars escape burn, and artificial gravity is again maintained for the trip back to Earth. Upon arrival at Earth, the System is again de-spun, and the vehicle performs an aeromaneuver in the Earth atmosphere to achieve a Space Station rendezvous orbit. The MPV is then available for refurbishment and reuse. A typical sequential performance summary for the manned Mars surface mission is given in Table IV. The NTR TMIS is a partially reusable system, with the propulsion elements and avionics packaged in an aerobraked module and the hydrogen propellant tankage discarded after propellant depletion. The mission sequence using an NTR propulsion
RkJQdWJsaXNoZXIy MTU5NjU0Mg==