Fixed Podded Drives

By: Thrustmaster Of Texas  11-11-2011
Keywords: Hydraulic Drives

Thrustmaster has been building podded hydraulic drives for more than twenty years.  They are available from 35 to 2,000 HP either with open propeller or with nozzle.  They are available in steel or aluminum, depending on vessel hull material.  They can be welded or bolted to the hull.

Fixed podded drives replace conventional shaft lines and stern tubes.  The engine can be placed at any convenient location (even on deck) as long as hydraulic piping or hoses connects between the engine driven hydraulic pump and the pod motor ports are available.  Multiple pods can be powered by a single engine and thrustmaster can offer engineering services directly to the customer to provide a near perfect fit.

The hydrostatic transmission provides fully proportional propeller speed control in forward and reverse with the engine running at constant speed much like a generator.  The vessel can be steered by individual control of propeller speeds in a twin screw configuration, or by installing a rudder behind the podded drive.

Please note that these drawings are for illustration purposes only. Please contact your Project Manager about details for your specific application.

All drawings are typical only and can be adjusted to meet your application needs. We can vary the propeller size and leg length to best meet the vessel configuration, user preference or speed versus thrust requirements.

Keywords: Hydraulic Drives

Other products and services from Thrustmaster Of Texas



Thrustmaster's product lines include fixed pitch propeller hydraulic and mechanical thrusters with direct engine drive, electric drive or hydraulic drive, and underwater mountable thrusters for the largest marine applications. Thrustmaster propulsion units can also be fixed or azimuthing and close fitted to the hull such as with Z or L drive propulsion, or stem mounted and tiltable with lengths up 35 feet for the 2000hp hydraulic thrusters.


Azimuth Thrusters

Azimuth thrusters are available in Z-drive configuration with direct diesel engine drive or in L-drive configuration for electric or hydraulic drive from overhead. They are available from 75 to 10,750 HP to replace conventional propulsion and rudder steering systems to perform both the propulsion and steering functions.


Tunnel Thrusters, Tunnel Thruster

Tunnel thrusters are primarily used for docking, slow speed maneuvering, emergency steering and station keeping at zero or slow forward speed. Tunnel thrusters are installed transversely in the bow or the stern of a vessel.


Retractable Thrusters

The retractable electric or hydraulic L-Drives deliver 360 degrees of steering in extended position, or tunnel power in the retracted position. Thrustmaster retractable thrusters are thru-hull azimuthing thrusters using fixed pitch propellers at variable speed. They use nozzled propellers and are used for dynamic positioning or slow speed course tracking applications.


Underwater Mount Thrusters

Because of the need to insure an accurate fit and seal integrity Thrustmaster also designs and manufactures the receptacles. The Underwater Mount Thruster can be removed and exchanged without taking the vessel out of service. Underwater Mount Thrusters for Dynamic Positioning are installed after the vessel is launched. The cutaway to the left shows three main components of the underwater installation system.


Propulsion Units

Many options are available, including hydraulic kick-up of the outdrive, hydraulic propeller depth adjustment, remote control panels, choice of engines, etc. Modular barges of the British Navy use Thrustmaster OD150N with remote hand controls, sound attenuation, and manual backup tilt pumps. They are available with diesel or electric hydraulic drives with power ratings from 35 hp to 2000 hp.