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  2. Reaction control system - Wikipedia

    en.wikipedia.org/wiki/Reaction_control_system

    Gemini Orbit Attitude and Maneuvering System, and Reentry (mislabeled "Reaction” [4]) Control System. The Mercury space capsule and Gemini reentry module both used groupings of nozzles to provide attitude control. The thrusters were located off their center of mass, thus providing a torque to rotate the capsule. The Gemini capsule was also ...

  3. List of NASA's flight control positions - Wikipedia

    en.wikipedia.org/wiki/List_of_NASA's_flight...

    Payload deployment and retrieval system (PDRS) Responsible for Space Shuttle remote manipulator system (RMS) or "robot arm". Propulsion engineer (PROP) Managed the reaction control thrusters and orbital maneuvering engines during all phases of flight, monitored fuel usage and propellant tank status, and calculated optimal sequences for thruster ...

  4. Orbital Maneuvering System - Wikipedia

    en.wikipedia.org/wiki/Orbital_Maneuvering_System

    The Orbital Maneuvering System (OMS) is a system of hypergolic liquid-propellant rocket engines used on the Space Shuttle and the Orion spacecraft.Designed and manufactured in the United States by Aerojet, [1] the system allowed the orbiter to perform various orbital maneuvers according to requirements of each mission profile: orbital injection after main engine cutoff, orbital corrections ...

  5. Thrusters (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Thrusters_(spacecraft)

    A thruster is a spacecraft propulsion device used for orbital station-keeping, attitude control, or long-duration, low-thrust acceleration, often as part of a reaction control system.

  6. Space Shuttle orbiter - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_orbiter

    The forward rockets of the Reaction Control System, located near the nose of the Space Shuttle orbiter, included 14 primary and two vernier RCS rockets. The aft RCS engines were located in the two Orbital Maneuvering System (OMS) pods at the rear of the orbiter, and these included 12 primary (PRCS) and two vernier (VRCS) engines in each pod.

  7. Vernier thruster - Wikipedia

    en.wikipedia.org/wiki/Vernier_thruster

    On space vehicles with two sizes of attitude control thrusters, the main ACS (Attitude Control System) thrusters are used for larger movements, while the verniers are reserved for smaller adjustments. Due to their weight and the extra plumbing required for their operation, vernier rockets are seldom used in new designs. [1]

  8. Orbit Attitude and Maneuvering System - Wikipedia

    en.wikipedia.org/wiki/Orbit_Attitude_and...

    Gemini Orbit Attitude and Maneuvering System location. The Orbit Attitude and Maneuvering System (OAMS) was a reaction control system used in Earth orbit by the Project Gemini spacecraft. It provided both automatic and manual rotation and translation by means of 16 vernier thrusters using hypergolic propellants.

  9. Space Shuttle abort modes - Wikipedia

    en.wikipedia.org/wiki/Space_Shuttle_abort_modes

    This maneuver was called the "powered pitcharound" (PPA) and was timed to ensure that less than 2% propellant remained in the external tank by the time the shuttle's trajectory brought it back to the Kennedy Space Center. Additionally, the shuttle's OMS and reaction control system (RCS) motors would continuously thrust to burn off excess OMS ...