Engine Model: 15D305. Government Designation: 15D305. Designer: Yuzhnoye, Tsurilnikov. Developed in: 1976-85. Application: RT-23 stage I. Propellants: Solid. Diameter: 2.40 m (7.80 ft). Length: 8.40 m (27.50 ft). Chambers: 1. Country: Russia. Status: Out of Production. The case-bound OPAL composite solid propellant charge had a star shape channel. The case was of organic fibre-wound plastic material. The gimbaled engine nozzle partially intruded into the combustion chamber. Steering was accomplished moving the nozzle, mounted on a circular elastic hinge, in pitch and roll. Versions of the motor seem to have been manufactured by both Tsurilnikov in Russia and Yuzhnoye in the Ukraine.
15D305 used on Rocket Stages
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