Engine Performance
|
Vulcain |
Vulcain 2 |
Propellant Combination
Oxidizer
Fuel |
Liquid Oxygen (LOX)
Liquid Hydrogen (LH2) |
Liquid Oxygen (LOX)
Liquid Hydrogen (LH2) |
| Engine Cycle: |
Gas Generator |
Gas Generator |
| Average Thrust: |
256,760 lbf
1,140 kN |
304,050 lbf
1,350 N |
| Chamber Pressure: (Pc) |
110 bar |
115 bar |
| Mixture Ratio: |
5.25 : 1 |
6.1 : 1 |
| Isp: |
431.5 sec |
433 sec |
| Nozzle Area Ratio: |
45 : 1 |
58.5 : 1 |
| Gimbal Capability: |
Yes |
Yes |
| Engine Mass: |
3,750 lb
1,700 kg |
4,270 lb
1,935 kg |
| Engine Thrust to Weight |
68.5 |
71.2 |
| Mixture Ratio Control: |
--- |
--- |
| Throttle Range: (% Pc) |
--- |
--- |
| Restart Capability: |
No |
No |
Engine Size:
Length / Diameter |
9.8 ft / 5.8 ft
3.0 m / 1.76 m |
11.8 ft / 7.1 ft
3.6 m / 2.15 m |
| Flight Status |
Flight Qualified |
Development |
| Launch Vehicles: |
Ariane 5 First Stage |
Ariane 5 First Stage |
* Engine performance from SEP Web
Site.
|
