Groza

Variant of the Energia launch vehicle with two strap-on boosters instead of four. This would have fulfilled the 50 metric ton payload requirement had the third generation booster plan been fully implemented.

LEO Payload: 50,000 kg (110,000 lb) to a 200 km orbit at 51.60 degrees.

Stage Data - Groza

• Stage 1. 1 x Energia Core. Gross Mass: 905,000 kg (1,995,000 lb). Empty Mass: 85,000 kg (187,000 lb). Thrust (vac): 7,848.124 kN (1,764,328 lbf). Isp: 453 sec. Burn time: 480 sec. Isp(sl): 354 sec. Diameter: 7.75 m (25.42 ft). Span: 7.75 m (25.42 ft). Length: 58.77 m (192.80 ft). Propellants: Lox/LH2. No Engines: 4. Engine: RD-0120. Status: Out of Production.

• Stage 2. 1 x Energia RCS. Gross Mass: 17,000 kg (37,000 lb). Empty Mass: 2,000 kg (4,400 lb). Thrust (vac): 84.935 kN (19,094 lbf). Isp: 352 sec. Burn time: 680 sec. Diameter: 3.70 m (12.10 ft). Span: 3.70 m (12.10 ft). Length: 5.70 m (18.70 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RD-58. Other designations: Retro and Correction Stage. Status: Out of Production. Comments: Adaptation of Block D for Energia payload orbital insertion.