Monopropellant Hydrazine Engine mockup of an early MR-104 type reaction control thruster. Assembly measures 15.75″ tall with a nozzle diameter of 5.″ A Rocket Research Company manufacturer’s label is affixed to the outside and reads: “MR-104B 150-lbf Rocket Engine Assembly.” In fine condition. The MR-104 engine family originally provided in-space propulsion for the Voyager 1 and 2 and Magellan missions. Subsequent MR-104 variants provided propulsion for Landsat and NOAA as well as for other US government programs. These rocket types are currently manufactured by Aerojet Rocketdyne. In compliance with ITAR regulations, this item is limited to purchase by US Citizens. RR Auction COA.
