Bipropellant Thrusters

4 N Model S4

10 N Model S10 - 01
10 N Model S10 - 02
10 N Details

22 N Model S22 - 2

200 N Model ATV

400 N Model S400-10
400 N Model S400-12
400 N Details

500 N Model EAM
500 N Details

10 N Bipropellant Thruster

Designed for precision attitude, trajectory and orbit control of large satellites and deep space probes.

10 N Bipropellant Thruster Model No S10 - 13

Over 1000 thrusters in the S10 series have successfully operated in space with hundreds more allocated for missions up to 2012.

The 10 N bipropellant thruster uses the storable propellants N2O4, MON-1 or MON-3 as oxidiser, and MMH as fuel.

The thruster is designed for both long term steady state and pulse mode operation and can function over a wide pressure range in either pressure regulated mode or blow down mode.

The combustion chamber and nozzle is manufactured from a platinum alloy that requires no surface coating and allows operational temperatures up to 1,500° C (2,700° F), thus enabling maximum thruster performance. The uncoated surface is absolutely resistant against oxidation and is thus invulnerable to the application of test sensors as well as millions of pulse cycles.

Trimming orifices between the propellant valve and injector provide for individual adjustment of the propellant flow, according to the designed system pressure.

If required, thrusters can be fitted with heaters and thermistors for thermal control.

While providing identical performance, the 10 N bipropellant thruster is available with a choice of three types of propellant flow control valve:

Thruster S10-13 (shown right) with single seat, monostable, torque motor valve supplied by MOOG, USA.

Thruster S10-18 (shown below) with dual seat valve, comprising an upstream latch valve and a downstream monostable valve supplied by MOOG, USA.

Thruster S10-23 (shown below) with dual seat valve, comprising an upstream latch valve and a downstream monostable valve supplied by Astrium Space Transportation, Germany.

When fitted with the Astrium valve, the thruster becomes an all European product.

 

10 N Bipropellant Thruster - Model No S10

Characteristics Metric Values Imperial/US Values Thrust, Nominal 10 N 2.2 lb Thrust Range 6.0 - 12.5 N 1.4 - 2.8 lb Specific Impulse at Nominal Point 291 s   Flow Rate, Nominal 3.50 g/s   Flow Rate, Range 2.30 - 4.20 g/s   Mixture Ratio, Nominal 1.65   Mixture Ratio, Range 1.20 - 2.10   Chamber Pressure, Nominal 9 bar 130 psi Inlet Pressure Range 10 - 23 bar 145 - 335 psi Throat Diameter (inner) 2.85 mm 0.11 inch Nozzle End Diameter (inner) 35 mm 1.38 inch Nozzle Expansion Ratio (by area) 150   Mass Thruster with Single Seat Valve 350 g 0.8 lb Mass Thruster with Dual Seat Valve 650 g 1.5 lb Chamber/Nozzle Material Platinum/Rhodium Injector Type Double Cone Vortex Cooling Control Film and Radiative Propellants: - Fuel - Oxidiser MMH N2O4, MON-1, MON-3 Valve, Single Seat Bipropellant torque motor valve, monostable 50 Volts, Moog 51-131 Valve, Dual Seat a) Two in one bipropellant torque motor valves 50 Volts, MOOG 51-215, or b) Two in one bipropellant dual coil actuator valves 40 to 50 Volts, Astrium Space Transportation. Valve Supplier MOOG, East Aurora, USA. Valve for thruster models S10-13 and S10-18. Astrium Space Transportation GmbH, Germany Valve for thruster model S10-23. Mounting Interface to Spacecraft Valve flange with 3 feedthrough holes of 6.4 mm (¼") dia. Tubing Interface per SAE AS4395E02, or welded Valve Lead Wires 24 AWG per MIL-W-81381 Thruster Heater and Thermal Sensor On request Qualified Single Burn Life 15 Hours Qualified Accumulated Burn Life 70 Hours Qualified Cycle Life 1,000,000 cycles

Model No S10 - 13 with Single Seat MOOG Valve	Model No S10 - 18 with Dual Seat MOOG Valve	Model No S10 - 23 with Dual Seat Astrium Valve
Dimensions: Elevation Plan Cut-Out	Dimensions: Elevation Plan Cut-Out	Dimensions: Elevation Plan Cut-Out

Technical Brochure
		A brochure is available on our 10 N bipropellant thrusters where you will find more detailed information, including: Heritage Technical Characteristics. Duty cycle qualification diagrams. Steady state performance diagrams. Structural interfaces and dimensioning. Random and sinusoidal vibration load diagrams. Thruster operating range diagrams. - 600 thrusters - specific Impulse Pulse mode performance diagrams. - Impulse bit - Impulse bit repeatability - Specific impulse.

Contact for Further Information