Ariane 5 is a heavy lift launch vehicle that is part of the Ariane rocket family,used to deliver payloads into geostationary transfer orbit (GTO) or low Earth orbit (LEO) The Ariane 5 is an expendable launch Vehicle that is being
operated by Arianespace. Atrium, an EADS company, is the prime
contractor for the Vehicle and is responsible for assembly of the
rockets. Atrium is the leader of various sub-contractors that
contribute components of the vehicle. Ariane 5 rockets are manufactured under the authority of the European Space Agency (ESA) and CNES .
Ariane 5 carries payloads weighing more than 10 metric tons to geostationary transfer orbit (GTO) and over 20 metric tons into low-Earth orbit (LEO). Two satellites can be mounted using a SYLDA carrier The ECA is the most powerful variant of the rocket and is used for most launches with the ES specified vehicle only launching the ATV (Automated Transfer Vehicle) into Low Earth Orbit. Notable payloads that were delivered to space by an Ariane 5 include the Rosetta and Planck Probes as well as the Herschel Space Observatory. Currently, Ariane 5 is mostly used to commercial satellite delivery launching TV or telecommunication satellites for various customers.Continuous adaptations to Ariane 5 will play a key role in this workhorse launcher’s on-going success. This includes a mid-life evolution that responds to heavier payloads in dual-launch configuration and has an upper stage re-ignition capability. In addition, Arianespace has proposed increasing available payload volume on Ariane 5 ECA by extending the fairing up to 2 meters in length, helping adapt to changes in spacecraft mass and size, as well as accommodating the move to hybrid and all-electric propulsion satellites.
The Cryogenic Main Stage of the Ariane 5 Rocket is called the EPC and and is fueled by Liquid Hydrogen and Liquid Oxygen. The Vulcain 2 engine is 20% more powerful than the original Vulcain. Vulcain is a gas-generator cycle rocket engine that provides 8% of thrust at liftoff . The engine features regenerative cooling via a tube wall design and lower nozzle cooling capabilities. Turbopumps are used to feed the engine with propellants .
Ariane 5 utilizes two solid boosters, each standing more than 30 meters tall with 237.8 metric tons of propellant. 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.These SRBs are usually allowed to sink to the bottom of the ocean,
The Cryogenic Upper Stage of the Vehicle, called ESC, is fueled by Liquid Oxygen and Liquid Hydrogen. ESC is powered by a HM7-B Engine.This engine was derived from HM4 that first flew in 1979 on the third stage of an Ariane 1 Rocket. HM7-B was used on third stages of Ariane 2, 3 and 4 Launch Vehicles. The Engine had its Ariane 5 debut on the maiden flight of the ECA variant of the launcher in 2002.HM7-B is a gas generator engine that provides 14,100lbf of thrust. It does not have any throttle range and is only operated at 100% of rated performance.
Ariane 5 carries payloads weighing more than 10 metric tons to geostationary transfer orbit (GTO) and over 20 metric tons into low-Earth orbit (LEO). Two satellites can be mounted using a SYLDA carrier The ECA is the most powerful variant of the rocket and is used for most launches with the ES specified vehicle only launching the ATV (Automated Transfer Vehicle) into Low Earth Orbit. Notable payloads that were delivered to space by an Ariane 5 include the Rosetta and Planck Probes as well as the Herschel Space Observatory. Currently, Ariane 5 is mostly used to commercial satellite delivery launching TV or telecommunication satellites for various customers.Continuous adaptations to Ariane 5 will play a key role in this workhorse launcher’s on-going success. This includes a mid-life evolution that responds to heavier payloads in dual-launch configuration and has an upper stage re-ignition capability. In addition, Arianespace has proposed increasing available payload volume on Ariane 5 ECA by extending the fairing up to 2 meters in length, helping adapt to changes in spacecraft mass and size, as well as accommodating the move to hybrid and all-electric propulsion satellites.
The Cryogenic Main Stage of the Ariane 5 Rocket is called the EPC and and is fueled by Liquid Hydrogen and Liquid Oxygen. The Vulcain 2 engine is 20% more powerful than the original Vulcain. Vulcain is a gas-generator cycle rocket engine that provides 8% of thrust at liftoff . The engine features regenerative cooling via a tube wall design and lower nozzle cooling capabilities. Turbopumps are used to feed the engine with propellants .
Ariane 5 utilizes two solid boosters, each standing more than 30 meters tall with 237.8 metric tons of propellant. 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.These SRBs are usually allowed to sink to the bottom of the ocean,
The Cryogenic Upper Stage of the Vehicle, called ESC, is fueled by Liquid Oxygen and Liquid Hydrogen. ESC is powered by a HM7-B Engine.This engine was derived from HM4 that first flew in 1979 on the third stage of an Ariane 1 Rocket. HM7-B was used on third stages of Ariane 2, 3 and 4 Launch Vehicles. The Engine had its Ariane 5 debut on the maiden flight of the ECA variant of the launcher in 2002.HM7-B is a gas generator engine that provides 14,100lbf of thrust. It does not have any throttle range and is only operated at 100% of rated performance.
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