F300A Nozzle Performance Test Module

F300A Nozzle Performance Test Module

The F300A allows students to study the performance of a nozzle as either a kinetic energy or thrust producer.

Operating from a normal laboratory compressed air supply the unit is supplied with one convergent and four convergent-divergent nozzles that can be rapidly interchanged.

These nozzles are all designed to operate at different theoretical expansion ratios. The unit is fully instrumented to measure pressure, mass flow, temperature, thrust and impact force. The operating conditions can be quickly varied to produce results over a wide range of pressure ratios

F300A Nozzle Performance Test Module

A series of convergent and convergent-divergent nozzles may be installed in one of two locations in a high pressure measuring chamber. A pressure regulator, throttle valve and back pressure valve allow the air flow rate, inlet and discharge (or back) pressure to be varied.

Standard unit includes convergent – divergent ducts designed to produce Mach 1.0 at the throat and supersonic velocities downstream.

Inlet and outlet air pressures, temperatures and air flow rate are recorded by a combination of instrumentation on the Compressible Flow Range F300 base unit and the optional module.

Requires the F300 Compressible Flow Range base unit for operation.

Experimental Capabilities:

  • Visual demonstration of nozzle choking
  • Determination of the effect of inlet and back pressure on mass flow rate through nozzles.
  • Comparison of mass flow rate with theoretical values.
  • Measurement of the velocity of a jet issuing from a nozzle operating at a variety of inlet and back pressures.
  • Calculation of nozzle efficiencies.

Determination of jet reaction and specific thrust at a range of inlet and back pressures


A: 220-240 Volts, Single Phase, 50Hz (With earth/ground).

    Line current up to 10A at 230v


B: 110-120 Volts, Single Phase, 60Hz (With earth/ground).

    Line current up to 20A at    110v

Compressed Air:

900kN/m2 (9 Bar Gauge) at up to 8g/s (400 litre/min free air)