This particular design requires installation within a flooded seachest, taking in water through intake grates in the ship’s hull before being drawn into the thruster and discharged through the flush mounted deflector.

With installations in vessels world-wide, including many for NOAA and the US Navy, our T3S unit has recently been chosen for integration on the British Polar Research Vessel - RRS Sir David Attenborough, which is equipped with four 60T3S units. 

We manufacture our vertical shaft units in 6 sizes, providing a range of static thrust from 2200kg to 20000kg.

The name ‘cross shaft’ reflects its design feature - the vertical steering shaft is sited on the same end as the horizontally mounted rotor shaft, with both shafts crossing one another.

The steel fabricated unit is welded directly to the vessel’s hull and fabricated seachest, considerably reducing installation costs.  With options for intakes on either the baseline or side shell to suit your vessel’s hull design or ship’s needs, this design is a flexible and versatile option.

Unlike our T3S unit, the rotor shaft is mounted horizontally, with the vertical steering shaft driving the discharge deflector directly to provide our signature 360° manoeuvrability in all conditions.

Water is drawn into the heart of the unit through the integrated intake grille before then passing through the static guide vanes to smooth out the imparted swirl. It is finally expelled through the unit’s deflector.

We manufacture the HJP thruster in a range of sizes to suit your requirements. With units available with a static thrust output up to 7 tonnes, our HJP is a great choice for many vessel types.

BRIDGE CONTROL PANEL

Our drop-in, manual control panels are supplied for installation into the wheelhouse, bridge wings or aft control stations. With a 360˚ rotatable control head for thruster azimuth and speed control, as well as multi-screen HMI providing all the required indicators, our control panels provide easy and precise control of our thrusters.

STARTER AND CONTROL CUBICLE

Our starter and control cubicle is also designed to be user friendly. Floor mounted and IP55 rated, our control cubicle houses all PLC equipment to control everything, including thruster start, running and alignment, plus AC variable speed steering drive and all other thruster functions - all accessed via the external multi-screen HMI. It also has the facility to interface with any remote ship systems, including dynamic positioning, joystick, voyage data recorder and any alarm monitoring systems.

STEERING MOTOR

Our fan cooled, reversible, electric steering motor mounts directly onto the thrust unit and is geared to rotate the discharge deflector in either direction at approximately 6 rpm, allowing a 180° change of direction in around 5 seconds. Controlled via our AC variable speed drive, the steering motor provides precise positioning for all manoeuvring operations.

Mounted to the steering motor is a gear driven transmitter to provide azimuth feedback to our control panels, and any integrated joystick or dynamic positioning system.