Dushkin Nitric acid/Solid hybrid rocket engine. Out of Production. Developed in the late 1950s by OKB Dushkin. It was a combined (powder+liquid) engine, characterized by a new technical approach conceived by Dushkin in the prewar design of the KRD-604.
AKA: R-13. Status: Out of Production. Date: 1946-. Number: 1 .