AKA: UM-129A. Status: Retired 1992. Number: 9 . Thrust: 77.00 kN (17,310 lbf). Specific impulse: 291 s. Specific impulse sea level: 220 s. Burn time: 68 s. Height: 2.34 m (7.67 ft). Diameter: 1.34 m (4.39 ft).