Encyclopedia Astronautica
Atlas CCB


Lox/Kerosene propellant rocket stage. Loaded/empty mass 306,914/22,461 kg. Thrust 4,152.00 kN. Vacuum specific impulse 338 seconds. Common Core Booster uses Glushko RD-180 engine and new isogrid tanks. Used in Atlas IV/USAF EELV, Atlas V. Includes 272 kg booster interstage adapter and 1297 kg Centaur interstage adapter.

Status: Active.
Gross mass: 306,914 kg (676,629 lb).
Unfuelled mass: 22,461 kg (49,518 lb).
Height: 32.46 m (106.49 ft).
Diameter: 3.81 m (12.49 ft).
Span: 3.81 m (12.49 ft).
Thrust: 4,152.00 kN (933,406 lbf).
Specific impulse: 338 s.
Specific impulse sea level: 311 s.
Burn time: 253 s.
Number: 17 .

More... - Chronology...


Associated Countries
Associated Engines
  • RD-180 Glushko Lox/Kerosene rocket engine. 4152 kN. Atlas III, Atlas V stage 1. In production. Isp=337s. First flight 2000. Two-thrust-chamber derivative of the four-chamber RD-170 used on Zenit. More...

Associated Launch Vehicles
  • Atlas V 401 American orbital launch vehicle. Atlas V version with a 4-m diameter payload fairing, single engine Centaur upper stage, and no strap-on solid boosters. Payloads: 7,095 kg (15,642 lb) to sun synchronous orbit; 4,950 kg (10,910 lb) to geosynchronous transfer orbit. More...
  • Atlas V 501 Atlas V with 5-m diameter payload fairing, single engine Centaur upper stage, and no strap-on solid boosters. Payloads: 6,319 kg (13,931 lb) to sun synchronous orbit; 3,970 kg (8,752 lb) to geosynchronous transfer orbit. More...
  • Atlas V 521 American orbital launch vehicle. Atlas V with 5-m diameter payload fairing, single engine Centaur upper stage, and two strap-on solid boosters. Payloads: 10,161 kg (22,401 lb) to sun synchronous orbit; 6,485 kg (14,297 lb) to geosynchronous transfer orbit. More...
  • Atlas V 431 American orbital launch vehicle. Atlas V with 4-m diameter payload fairing, single engine Centaur upper stage, and three strap-on solid boosters. Payloads: 11,547 kg (25,458 lb) to sun synchronous orbit; 7,800 kg (17,196 lb) to geosynchronous transfer orbit. More...
  • Atlas V 411 American orbital launch vehicle. Atlas V with 4-m diameter payload fairing, single engine Centaur upper stage, and one strap-on solid booster. Payloads: 8,763 kg (19,320 lb) to sun synchronous orbit; 6,075 kg (13,393 lb) to geosynchronous transfer orbit. More...

Associated Propellants
  • Lox/Kerosene Liquid oxygen was the earliest, cheapest, safest, and eventually the preferred oxidiser for large space launchers. Its main drawback is that it is moderately cryogenic, and therefore not suitable for military uses where storage of the fuelled missile and quick launch are required. In January 1953 Rocketdyne commenced the REAP program to develop a number of improvements to the engines being developed for the Navaho and Atlas missiles. Among these was development of a special grade of kerosene suitable for rocket engines. Prior to that any number of rocket propellants derived from petroleum had been used. Goddard had begun with gasoline, and there were experimental engines powered by kerosene, diesel oil, paint thinner, or jet fuel kerosene JP-4 or JP-5. The wide variance in physical properties among fuels of the same class led to the identification of narrow-range petroleum fractions, embodied in 1954 in the standard US kerosene rocket fuel RP-1, covered by Military Specification MIL-R-25576. In Russia, similar specifications were developed for kerosene under the specifications T-1 and RG-1. The Russians also developed a compound of unknown formulation in the 1980's known as 'Sintin', or synthetic kerosene. More...

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