Kosberg isopropyl nitrate monopropellant rocket engine. Developed 1955-56. Second thrust level at 50%. Explosion of D-1 on test bench in 1956 forced stop of work with mono-propellant OT-152. Sea level thrust 39 kN.
AKA: D-1. Status: Developed 1955-56. Date: 1955-56. Thrust: 39.00 kN (8,767 lbf). Specific impulse: 210 s. Specific impulse sea level: 210 s.
Chamber Pressure: 35.30 bar. Propellant Formulation: OT-152.