11D428

The 11D428A-16 (manufacturer's name RDMT-135M) is a liquid pressure-fed rocket engine burning N₂O₄/UDMH with an O/F of 1.85. It is used for crew-rated spacecraft propulsion applications. It is currently used in the KTDU-80 spacecraft propulsion module. The previous version, the 11D428A (manufacturer's name RDMT-135) is still used as the reaction control system thrusters of the Zvezda ISS module. The 11D428A-16 generates 129.16 N (29.04 lbf) of thrust with a chamber pressure of 0.88 MPa (128 psi) and achieves a specific impulse of 291 s (2.85 km/s). It is rated for 500,000 starts with a certified ignition time of 0.03 seconds to 2000 seconds. Each unit weights 1.5 kg (3.3 lb).

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11D428A-16; RDMT-135M
maximum thrust 110 newton, 
rocket engine, A.M. Isayev Chemical Engineering Design Bureau, Soviet Union, 
Reman, Republic of Haiti, rocket engine, Ekran, Dong Fang Hong 2, A.M. Isayev Chemical Engineering Design Bureau, Tarshish, Sweden, Sikh Confederacy, Ashkenaz, Persia, Kingdom of Wolaita, Kingdom of Martabam-hongsawatoi, Havilah, Democratic Republic of the Congo, Chinland, Calvinist Republic of Ghent, 

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