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Ariane 5ECA
Part of Ariane 5 Family
Ariane 5 ESC-A
Ariane 5 ESC-A
French orbital launch vehicle, first version of the evolved Ariane 5. The solid booster motors propellant load was increased by 2.43 metric tons and the case was welded, for a weight saving in dry mass of 1.9 metric tons. The core was powered by an improved Vulcain 2 engine. The oxygen-rich cycle of the engine allowed the oxygen bulkhead to be moved within the stage, resulting in a 15.2 metric ton increase in propellant in the core. A new LOx/LH2 upper stage, using the HM7B engine and oxygen tank from the Ariane 4 series, replaced the storable propellant EPS stage of earlier models. The result was an increase in payload to geosynchronous transfer orbit from 6 metric tons to 10.5 metric tons.

Status: Active. First Launch: 2002-12-11. Last Launch: 2017-02-14. Number: 59 . Payload: 16,000 kg (35,000 lb). Thrust: 15,360.00 kN (3,453,060 lbf). Gross mass: 777,000 kg (1,712,000 lb). Height: 59.00 m (193.00 ft). Diameter: 5.40 m (17.70 ft). Apogee: 407 km (252 mi).

3 stage vehicle consisting of 2 x Ariane EAP P240 + 1 x Ariane 5 EPC H175 + 1 x ESC-A.

LEO Payload: 16,000 kg (35,000 lb) to a 407 km orbit at 51.60 degrees. Payload: 10,500 kg (23,100 lb) to a GTO, 7 deg.

Stage Data - Ariane 5 EC-A

  • Stage 0. 2 x Ariane 5 EAP. Gross Mass: 278,330 kg (613,610 lb). Empty Mass: 38,200 kg (84,200 lb). Thrust (vac): 6,470.000 kN (1,454,510 lbf). Isp: 275 sec. Burn time: 130 sec. Isp(sl): 250 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 31.60 m (103.60 ft). Propellants: Solid. No Engines: 1. Engine: P241. Other designations: P241. Status: In Production. Comments: Increased propellant loading (+2.43 metric tons), lighter welded case (-1.6 metric tons) compared to earlier versions.
  • Stage 1. 1 x Ariane 5 EPC. Gross Mass: 186,000 kg (410,000 lb). Empty Mass: 12,700 kg (27,900 lb). Thrust (vac): 1,114.000 kN (250,437 lbf). Isp: 434 sec. Burn time: 650 sec. Isp(sl): 335 sec. Diameter: 5.46 m (17.91 ft). Span: 5.46 m (17.91 ft). Length: 30.50 m (100.00 ft). Propellants: Lox/LH2. No Engines: 1. Engine: Vulcain 2. Other designations: H173. Status: In Production. Comments: 15.2 metric tons increased propellant by moving liquid oxygen bulkhead.
  • Stage 2. 1 x Ariane 5 ESC A. Gross Mass: 16,500 kg (36,300 lb). Empty Mass: 2,100 kg (4,600 lb). Thrust (vac): 64.700 kN (14,545 lbf). Isp: 446 sec. Burn time: 960 sec. Diameter: 5.46 m (17.91 ft). Span: 5.46 m (17.91 ft). Length: 9.00 m (29.50 ft). Propellants: Lox/LH2. No Engines: 1. Engine: HM7-B. Status: In Production. Comments: Uses engine and oxygen tank from Ariane 4 + new liquid hydrogen tank.


More at: Ariane 5ECA.

Family: orbital launch vehicle. Country: France. Spacecraft: Alphabus, ARSAT-3K, Herschel, I-2K, I-3K, Planck, Skynet, Eurostar 2000, FS-1300, Badr, Spacebus 3000, AS 2100, MAQSAT, Star bus, HS 702, Insat 3, LDREX, MSG, Cubesat, Myriade, Spacebus 4000, SLOSHSAT, Eurostar 3000, DS2000, Skynet 5. Projects: Brasilsat, Americom, Astra, DirecTV, Eutelsat, Galaxy, Insat. Launch Sites: Kourou, Kourou ELA3. Stages: Ariane 5-0 P241, Ariane 5-1 EPC, Ariane 5-2 ESC A. Agency: EADS.

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