Encyclopedia Astronautica
Atlas V SRB


Solid propellant rocket stage. Loaded/empty mass 40,824/4,000 kg. Thrust 1,270.00 kN. Vacuum specific impulse 275 seconds. New SRB boosters in development for Atlas V. Empty mass, vacuum thrust, sea level Isp estimated.

Status: Active.
Gross mass: 40,824 kg (90,001 lb).
Unfuelled mass: 4,000 kg (8,800 lb).
Height: 17.70 m (58.00 ft).
Diameter: 1.55 m (5.08 ft).
Span: 1.00 m (3.20 ft).
Thrust: 1,270.00 kN (285,500 lbf).
Specific impulse: 275 s.
Specific impulse sea level: 245 s.
Burn time: 94 s.
Number: 14 .

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Associated Countries
Associated Engines
  • Aerojet SRB Aerojet solid rocket engine. 1270 kN. In production. Isp=275s. First flight 2002. More...

Associated Launch Vehicles
  • 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
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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