{"id":23516,"date":"2019-03-30T12:00:00","date_gmt":"2019-03-30T12:00:00","guid":{"rendered":"https:\/\/astronautix.com\/?astx_entry=rd-0225"},"modified":"2026-10-22T18:43:56","modified_gmt":"2026-10-22T18:43:56","slug":"rd-0225","status":"publish","type":"astx_entry","link":"https:\/\/astronautix.com\/r\/rd-0225.html","title":{"rendered":"RD-0225"},"content":{"rendered":"\n<p>Kosberg N2O4\/UDMH rocket engine. Almaz space station orbital maneuvering. Hardware. Originally designed for UR-100 follow-on spaceships. Two engines used on Almaz space station for orbital maneuvering, Pressure fed. First flight 1974.<\/p>\n<p><em>Engine:<\/em> 23 kg (50 lb). <em>Chamber Pressure:<\/em> 8.80 bar. <em>Area Ratio:<\/em> 64. <em>Thrust to Weight Ratio:<\/em> 17.39. <em>Oxidizer to Fuel Ratio:<\/em> 1.85.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kosberg N2O4\/UDMH rocket engine. Almaz space station orbital maneuvering. Hardware. Originally designed for UR-100 follow-on spaceships. Two engines used on Almaz space station for orbital maneuvering, Pressure fed. First flight 1974.<\/p>\n","protected":false},"template":"","meta":{"inline_featured_image":false,"bs_cache_bypass_cache":0},"astx_kind":[13],"astx_nation":[3],"astx_family":[14],"class_list":["post-23516","astx_entry","type-astx_entry","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/astx_entry\/23516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/astx_entry"}],"about":[{"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/types\/astx_entry"}],"wp:attachment":[{"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/media?parent=23516"}],"wp:term":[{"taxonomy":"astx_kind","embeddable":true,"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/astx_kind?post=23516"},{"taxonomy":"astx_nation","embeddable":true,"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/astx_nation?post=23516"},{"taxonomy":"astx_family","embeddable":true,"href":"https:\/\/astronautix.com\/wp-json\/wp\/v2\/astx_family?post=23516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}