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Model: Atlas MA-2. Gross Mass: 3,050 kg (6,720 lb). Empty Mass: 3,050 kg (6,720 lb). Thrust (vac): 1,517.422 kN (341,130 lbf). Isp: 282 sec. Burn time: 135 sec. Propellants: Lox/Kerosene. Isp(sl): 248 sec. Diameter: 4.90 m (16.00 ft). Span: 4.90 m (16.00 ft). Length: 0.00 m ( ft). Country: USA. No Engines: 2. Motor: XLR89-5. Status: Out of production. First Flight: 1956. Last Flight: 1967. No Launched: 275.

Model: Atlas MA-3. Gross Mass: 3,174 kg (6,997 lb). Empty Mass: 3,174 kg (6,997 lb). Thrust (vac): 1,644.960 kN (369,802 lbf). Isp: 290 sec. Burn time: 120 sec. Propellants: Lox/Kerosene. Isp(sl): 256 sec. Diameter: 4.90 m (16.00 ft). Span: 4.90 m (16.00 ft). Length: 0.00 m ( ft). Country: USA. No Engines: 2. Motor: LR89-5. Status: Retired 1995. First Flight: 1958. Last Flight: 1995. No Launched: 336.

Model: Atlas MA-5. Gross Mass: 3,646 kg (8,038 lb). Empty Mass: 3,646 kg (8,038 lb). Thrust (vac): 1,896.010 kN (426,240 lbf). Isp: 294 sec. Burn time: 174 sec. Propellants: Lox/Kerosene. Isp(sl): 259 sec. Diameter: 4.90 m (16.00 ft). Span: 4.90 m (16.00 ft). Length: 0.00 m ( ft). Country: USA. No Engines: 2. Motor: LR89-7. Status: Out of production. First Flight: 1963. Last Flight: 1997. No Launched: 132.

Model: Atlas MA-5A. Gross Mass: 4,187 kg (9,230 lb). Empty Mass: 4,187 kg (9,230 lb). Thrust (vac): 2,093.700 kN (470,682 lbf). Isp: 299 sec. Burn time: 172 sec. Propellants: Lox/Kerosene. Isp(sl): 263 sec. Diameter: 4.90 m (16.00 ft). Span: 4.90 m (16.00 ft). Length: 0.00 m ( ft). Country: USA. No Engines: 2. Motor: RS-56-OBA. Status: Out of production. First Flight: 1968. Last Flight: 2002. No Launched: 49.

Model: Atlas MA-5AS. Gross Mass: 5,632 kg (12,416 lb). Empty Mass: 5,632 kg (12,416 lb). Thrust (vac): 2,093.700 kN (470,682 lbf). Isp: 299 sec. Burn time: 172 sec. Propellants: Lox/Kerosene. Isp(sl): 263 sec. Diameter: 4.90 m (16.00 ft). Span: 4.90 m (16.00 ft). Length: 0.00 m ( ft). Country: USA. No Engines: 2. Motor: RS-56-OBA. Status: Out of production. First Flight: 1993. Last Flight: 2004. No Launched: 32.

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