The Angara 5A is a proposed variant of the modular launch vehicle that would use four universal rocket modules (URM's) as boosters surrounding one URM in the core, with a Lox/LH2 upper stage.

LEO Payload: 28,500 kg. to: 200 km Orbit. at: 63.0 degrees. Liftoff Thrust: 975,000 kgf. Total Mass: 790,000 kg. Core Diameter: 3.9 m. Total Length: 64.0 m.

• Stage Number: 1. 4 x Angara UM Gross Mass: 140,000 kg. Empty Mass: 10,000 kg. Thrust (vac): 213,600 kgf. Isp: 338 sec. Burn time: 300 sec. Isp(sl): 310 sec. Diameter: 2.9 m. Span: 2.9 m. Length: 25.0 m. Propellants: Lox/Kerosene No Engines: 1. RD-191

• Stage Number: 2. 1 x Angara UM Gross Mass: 140,000 kg. Empty Mass: 10,000 kg. Thrust (vac): 213,600 kgf. Isp: 338 sec. Burn time: 300 sec. Isp(sl): 310 sec. Diameter: 2.9 m. Span: 2.9 m. Length: 25.0 m. Propellants: Lox/Kerosene No Engines: 1. RD-191

• Stage Number: 3. 1 x Angara KVRB Gross Mass: 23,300 kg. Empty Mass: 3,500 kg. Thrust (vac): 7,500 kgf. Isp: 461 sec. Diameter: 4.1 m. Span: 4.1 m. Length: 8.6 m. Propellants: Lox/LH2 No Engines: 1. RD-56M

• 220 - Khrunichev Brochure, 1996.
• 455 - Isakowitz, Steven J,, International Reference to Space Launch Systems Third Edition, AIAA, Washington DC, 2000.