Bipropellant Thruster 11d

Phobos Sample Return Spacecraft
Flight qualification of the product:
Letter "O", flight use
Possibility to adapt the product to customer requirements: Yes

Parameter Value
Propellants, Fuel/Oxidizer UDMH/NTO
Nominal Thrust 53.9 N
Nominal Specific Impulse, Steady State 2,842 m/s
Nominal Inlet Pressure 1.18 MPa
Inlet Operating Pressure 1.03…1.32 MPa
Total Firing Time, up to 5,750 s
Cycle Life, Number of Starts-up, up to 100,000
Nozzle Expansion Ratio 50
Operating Voltage 27 V
Mass, not over 1.5 kg


Formation of multiple impulses for attitude control of spacecraft in response to control system triggering commands. Design features: - A high temperature Niobium alloy nozzle with disilicide oxidation resistant coating.

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