Encyclopedia Astronautica
Minuteman-1


Solid propellant rocket stage. Loaded/empty mass 23,077/2,292 kg. Thrust 791.30 kN. Vacuum specific impulse 262 seconds. First stage of Minuteman I. Proposed as zero stage for various Saturn variants in 1960's. Surplus motors used in ABM SDI tests in 1980's and 1990's.

Status: Study 1966.
Gross mass: 23,077 kg (50,876 lb).
Unfuelled mass: 2,292 kg (5,052 lb).
Height: 7.49 m (24.57 ft).
Diameter: 1.67 m (5.47 ft).
Span: 1.67 m (5.47 ft).
Thrust: 791.30 kN (177,891 lbf).
Specific impulse: 262 s.
Specific impulse sea level: 237 s.
Burn time: 60 s.
Number: 329 .

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Associated Countries
Associated Engines
  • M55/TX-55/Tu-122 Thiokol solid rocket engine. 792 kN. In production. Isp=262s. Proposed as strap-on booster for Saturn IB-C, Saturn INT-14, Saturn INT-15, Saturn INT-19 variants. First flight 2000. More...

Associated Launch Vehicles
  • Minuteman 1B American intercontinental ballistic missile. Full production version. Minuteman IB used the Mk.5 RV with the W59 (1 MT), the Mk.11 with the W56 (1.2 MT) and the Mk.11A with the W56 as well. More...
  • Minuteman 2 American intercontinental ballistic missile. US ICBM. 3 stage vehicle. The LGM-30F Minuteman II used the W56 warhead exclusively with either the Mk. 11B or Mk. 11C re-entry vehicle. More...
  • Saturn IB-C American orbital launch vehicle. Douglas Studies, 1965: 4 Minuteman strap-ons; standard S-IB, S-IVB stages. More...
  • Saturn INT-14 American orbital launch vehicle. Chrysler Studies, 1966: S-IB with 4 Minuteman motors as strap-ons, with no, 10, or 20-foot stretch S-IB stages, S-IVB stage. S-IB ignition at sea level at same time as strap-ons. More...
  • Saturn INT-15 American orbital launch vehicle. Chrysler Studies, 1966: S-IB with 8 Minuteman motors as strap-ons, with no, 10, or 20-foot stretch S-IB stages, S-IVB stage. S-IB ignition at sea level at same time as strap-ons. More...
  • Saturn INT-19 North American study, 1966. Saturn variant with 4 to 12 Minuteman motors as boosters, Saturn II stage as core, and Saturn IVB upper stage. Saturn II stage would be fitted with lower expansion ratio engines and would ignite at sea level. Various combinations of numbers of strap-ons, propellant loading of the two core stages were studied. More...
  • Minuteman 3 American four-stage solid-propellant intercontinental ballistic missile. In the 21st Century, the sole remaining US ICBM. More...
  • M55E1 American sounding rocket. Two stage vehicle consisting of 1 x M55E1 + 1 x SR19AJ1 More...
  • HOE American anti-ballistic missile. Two stage vehicle used to test the Homing Overlay Experiment anti-ballistic missile kill vehicle. More...
  • Minotaur 1 American all-solid orbital launch vehicle. Orbital launch vehicle consisting of a surplus Minuteman M55A1 first stage, Minuteman SR19 second stage, and new Orion 50XL third stage, Orion 38 fourth stage, and optional HAPS fifth stage for velocity trim and multiple payload deployment. Payload 580 kg to an 185 km, 28.5 degree orbit from Cape Canaveral; 310 kg to a 740 km sun-synchronous orbit from Vandenberg. More...
  • Minotaur 2 American all-solid orbital launch vehicle. Suborbital target vehicle consisting of an M55A1 first stage, SR19 second stage, and M57 third stage - essentially a Minuteman II with Orbital guidance and control systems. 440 kg payload on a 6700 km suborbital trajectory. 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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