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M55/TX-55/Tu-122
Part of M55 Family
Thiokol solid rocket engine. In production. Proposed as strap-on booster for Saturn IB-C, Saturn INT-14, Saturn INT-15, Saturn INT-19 variants. First flight 2000. Solid propellant rocket stage. 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. Minuteman first stage.

AKA: Minuteman-1. Status: In production. Number: 5 . Thrust: 792.00 kN (178,048 lbf). Gross mass: 23,077 kg (50,876 lb). Unfuelled mass: 2,292 kg (5,052 lb). Specific impulse: 262 s. Specific impulse sea level: 237 s. Burn time: 60 s. Height: 7.49 m (24.57 ft). Diameter: 1.67 m (5.47 ft).

Propellant Formulation: TP-H1011 Type II.



Country: USA. Launch Vehicles: Minuteman 1B, Minuteman 2, Saturn IB-C, Saturn INT-14, Saturn INT-15, Saturn INT-19, Minuteman 3, M55E1, HOE, Minotaur 1, Minotaur 2. Propellants: Solid. Stages: M55/TX-55/Tu-122. Agency: Thiokol.

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