AKA: Ariane 5 EPC;H173. Status: In development. Thrust: 1,114.00 kN (250,437 lbf). Gross mass: 186,000 kg (410,000 lb). Unfuelled mass: 12,700 kg (27,900 lb). Specific impulse: 434 s. Specific impulse sea level: 335 s. Burn time: 650 s. Height: 30.50 m (100.00 ft). Diameter: 5.46 m (17.91 ft). Span: 5.46 m (17.91 ft).