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before they are separated over a designated zone of the Atlantic Ocean.The booster stage’s solid rocket motor is made up of three segments: the 11.1-meter-long aft (lower) segment, which is loaded with 106.7 metric tons of propellant; the center segment, with a length of 10.17 meters and 107.4 metric tons of propellant; and the 3.5-meter-long forward (upper) segment, loaded with 23.4 metric tons of propellant.Its thrust chamber is fed by two pumps (liquid hydrogen and liquid oxygen) driven by a gas generator, a common turbine and a gearbox.

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Two redundant ring laser gyroscopes are used for inertial reference and guidance during the mission.

To streamline the assembly process, Ariane 5’s vehicle equipment bay and ESC-A cryogenic upper stage are installed as a single unit atop its cryogenic core stage.

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The Ariane 5 ECA launcher version utilizes the ESC-A cryogenic upper stage, which is powered by an HM7B engine.

This reliable engine – which also served in the upper stage on Arianespace’s legendary Ariane 4 family of launchers – develops 67 k N maximum thrust in vacuum, and is turbopump-fed and regeneratively cooled.It carries a propellant load of 132.27 metric tons of liquid oxygen and 25.84 metric tons of liquid hydrogen to feed the stage’s Vulcain main engine.The Vulcain burns for just under 600 seconds, providing up to 116 metric tons of thrust in vacuum.The boosters are ignited on the launch pad once the main cryogenic stage’s Vulcain engine has stabilized its thrust output.They deliver more than 90 percent of the launcher’s total thrust at the start of flight and burn for 130 sec.However, all definitions generally originate with people of Northern India and surrounding areas.

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