The invention relates to an electrical machine, e.g. water turbine or bow propeller.

The sealed, air-filled canister (138) is substantially devoid of propellant prior to the step of dispensing the pressurised liquid and/or gas.

This ground-breaking powerplant is the only new engine in its thrust class that is on the verge of entering service.

The projectile (1) is translated in respect of the rocket motor (10) by means of a pyrotechnic charge (2) before the rocket motor (10) is initiated.

The invention also relates to an airship provided with such bow thruster apparatus.

The aerosol propellant may be a hydrofluoroalkane propellant.

The aerosol propellant may be a hydrofluoroolefin propellant.

The aerosol propellant may be a hydrofluoroalkane propellant.

The aerosol propellant may be a hydrofluoroalkane propellant.

The invention relates to an electrical machine, e.g. water turbine or bow propeller.

When the drive gas is carbon dioxide, methane and/or nitrogen may be extracted from the separated gas prior to being mixed with the drive gas.

A closed chamber defined between the igniter and housing forward end contains a pyrotechnical propellant (22) in the form of a propellant grain of extrudable or moldable propellant material.

An apparatus for the discharge of powder by a fluidic propellant is suitable for use as a fire extinguisher, the apparatus including a container (12) wherein powder and propellant is pressurized prior to use of the apparatus.

Each propulsor includes a propulsor turbine and one of a fan and a propeller.

The mousse has a viscosity of less than 30,000 centipoise when measured prior to the addition of the propellant.