Control systems for launch vehicles

Control system for Cyclone-4 launch vehicle

CS Performance:

  • it provides LV mission and motion control at phases of pre-launch preparation, launch and payload placing into required orbit;
  • it provides stages equipment check at all phases of LV mounting and testing;
  • it is designed with up-to-date components use;
  • to improve injection accuracy it is equipped with INS and GPS based navigation subsystem;
  • combined error of injection comes to:
– for orbit altitude, km up to 1,5; – for angle of orbit inclination, ang. min up to 0,2; duration of injection, hours – up to 3,5.

Control system for Dnepr launch vehicle

Dnepr LV features:

  • it is a middle-class LV for space vehicle injection into the Earth circular and elliptic orbits;
  • booster ( two stages ) is a part of 15A18 missile withdrawn from action;
  • upper ( the third ) stage is a derivative from warheads delivery stage of 15A18 missile. New features of upper stage:
– repeated main engine firing and new scheme of its operation; – additional low-powered motive installation for stage stabilization while coasting;
  • launch – from silo launch facilities, Baikonour.

CS Performance:

  • LV mission and motion control at phases of pre-launch preparation, launch and space;
  • vehicle placing into required orbit;
  • it is derived from CS for 15A18 missile by means of modification both HW and SW;
  • combined error of injection comes to:
– for orbit altitude, km – 4; – for angle of orbit inclination, ang. min – 2,5;
  • duration of injection, hours – up to 1,0.

Control system for Rokot launch vehicle

Rokot LV features:

  • it is a light – class LV for space vehicle injection into the Earth circular and elliptic orbits;
  • booster ( two stages ) is a part of 15A35 missile withdrawn from action;
  • upper ( the third ) stage is a specific developed one. It provides repeated main engine firing and controlled coasting flight;
  • launch will be made from launch pad, Plesetsk.

CS Performance:

  • LV mission and motion control at phases of pre-launch preparation, launch and space vehicle placing into required orbit;
  • it is designed for the Rokot LV specially, with up-to-date componeuts use;
  • combined error of injection comes to:
– for orbit altitude, percentage up to 1,0; – for angle of orbit inclination, ang. min up to 2,5; duration of injection, hours – up to 7,0.

Control system for Strela launch vehicle

Strela LV features:

  • it is a light – class LV for space vehicle injection into the Earth circular and elliptic orbits;
  • booster ( two stages ) is a part of 15A35 missile withdrawn from action;
  • upper ( the third ) stage is a derivative from warheads delivery stage of 15A35 missile.New features of upper stage:
– new scheme of the main engine operation under single-mode firing; – additional low-powered motive installation for stage stabilization while coasting;
  • launch – from silo launch facilities, Svobodny.

CS Performance:

  • LV mission and motion control at phases of pre-launch preparation, launch and space vehicle placing into required orbit;
  • it is derived from CS for 15A35 missile by means of modification both HW and SW;
  • combined error of injection comes to:
– for orbit altitude, km 4; – for angle of orbit inclination, ang. min – 2,5; duration of injection, hours – up to 1,0.

Autonomous integrated control system(ICOS) for super heavy-duty Energya launch vehicle

ICOS that incorporates multicomputer processing system implements:

  • precise optimal injection of pay-load ( orbital spacecraft – OS ) into required orbit
  • flight control under condition of critical failure occurrence ( i.e. failure with probability value less than 10 -6 ) and specially when one or two main engine packed up parrying of critical failure consequences and, if necessary, return of OS to the basic airdrome through:
– one-turn returning maneuver; – bringing maneuver;
  • precise bringing of separated parts to the alienated districts;
  • main engines operation control;
  • fuel flow control;
  • ensuring of restrictions on:
– impact head; – overloading; – transverse loading of LV Structure due to aerodynamic force;
  • stabilization of the LV that has extremely complex dynamics including:
– 40 tones of LV body flexible oscillation; – fuel oscillaton in 12 tanks; – oscillation of 8 main engine’s flexible suspension; – dynamic characteristics of 40 steering actuators.
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