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  2. Reaction control system - Wikipedia

    en.wikipedia.org/wiki/Reaction_control_system

    Alternatively, reaction wheels can be used for attitude control. Use of diverted engine thrust to provide stable attitude control of a short-or-vertical takeoff and landing aircraft below conventional winged flight speeds, such as with the Harrier "jump jet", may also be referred to as a reaction control system. [1]

  3. KTDU-80 - Wikipedia

    en.wikipedia.org/wiki/KTDU-80

    The original Soyuz had a separated orbital correction system from its orientation system. The latter, integrated a reaction control system called DPO and the attitude control system, called DO. The KTDU-35 had a main orbit correction engine SKD, the S5.60 and a backup orbital correction engine DKD, the S5.35.

  4. R-4D - Wikipedia

    en.wikipedia.org/wiki/R-4D

    The R-4D is a small hypergolic rocket engine, originally designed by Marquardt Corporation for use as a reaction control system thruster on vehicles of the Apollo crewed Moon landing program. Aerojet Rocketdyne manufactures and markets modern versions of the R-4D. [1]

  5. Reaction wheel - Wikipedia

    en.wikipedia.org/wiki/Reaction_wheel

    A small reaction wheel viewed in profile A momentum/reaction wheel comprising part of a high-accuracy Conical Earth Sensor to maintain a satellite's precise attitude. A reaction wheel (RW) is an electric motor attached to a flywheel, which, when its rotation speed is changed, causes a counter-rotation proportionately through conservation of angular momentum. [1]

  6. Orbit Attitude and Maneuvering System - Wikipedia

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

    The system was also used to push the spacecraft away from the spent second stage of the Titan II launch vehicle on first reaching orbit. The eight rotational control engines were mounted off the spacecraft's center of mass around the aft section of the Equipment Module, pointed at 90 degree positions up, down, left and right.

  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. Control engineering - Wikipedia

    en.wikipedia.org/wiki/Control_engineering

    Control systems play a critical role in space flight.. Control engineering, also known as control systems engineering and, in some European countries, automation engineering, is an engineering discipline that deals with control systems, applying control theory to design equipment and systems with desired behaviors in control environments. [1]

  9. Aegis Combat System - Wikipedia

    en.wikipedia.org/wiki/Aegis_Combat_System

    Diagram of the Aegis Combat System (Baseline 2-6). The Aegis Combat System (ACS) implements advanced command and control (command and decision, or C&D, in Aegis parlance). It is composed of the Aegis Weapon System (AWS), the fast-reaction component of the Aegis Anti-Aircraft Warfare (AAW) capability, along with the Phalanx Close In Weapon System (CIWS), and the Mark 41 Vertical Launch System