Swing retractable bow- and stern thrusters
Swing retractable bow- and stern thrusters
Hydrosta BV offers swing retractable bow and stern thrusters, particularly suitable for sailing boats where the hull needs to be closed when the thrusters are not in use. These thrusters are available from 45 HP upwards and are designed to assist in maneuvering yachts by swinging down when needed.
Technical Specifications
The Swing thrusters are based on a tailpiece with propellers similar to those used in fixed tunnel versions. An extension arm is fitted on the mounting flange, with its length and rotation angle determined in consultation with a naval architect. A bevel gear allows the hydraulic motor to be fitted inside the yacht. The design process includes establishing specifications and providing installation drawings.
Materials
The thrusters can be made with aluminium bronze or aluminium Sider. Standard components include an aluminium bow thruster housing, a cast aluminium tailpiece, and propellers made of stainless steel or aluminium bronze.
SIDER Swing 150
This model features counter-rotating capabilities. The dimensions are determined in consultation with a naval architect, and specific information and digital construction drawings are available upon request.
Conclusion
Hydrosta BV provides a customizable solution for sailing yachts requiring retractable thrusters, with a focus on material quality and precise engineering tailored to specific vessel requirements.
Catalog excerpts
retractable bow- and stern thrusters Technical Up from 45 HP the Sider is also available in a retractable (Swing) version. Swing bow & stern thrusters are mainly used on sailing boats for which the hull of the boat should be closed when the unit is not in use. While the yacht is manoeuvring, the bow and stern thrusters are swung down so that the yacht can be moored. The section of the hull that opens is constructed to the outside of the tunnel of the thrusters. Each Swing is based upon a tailpiece with the same propellers that are used in a normal fix tunnel version of our standard bow thrusters. In the Swing version, a so-called extension arm is fitted on the mounting flange. The length of the extension arm in combination with the rotation angle is determined in consultation with the naval architect and depends upon the application. By the use of a bevel gear witch is fitted in the centre of the pivot the hydraulic motor can be fitted inside the yacht. The supply of a Swing includes a design process in which the specifications are established and the installation drawings to be delivered to our engineering team. Materials The Swing bow and stern thrusters can be supplied with an aluminium bronze or aluminium Sider. As a standard, the bow thruster housing is made of aluminium, the tailpiece of cast aluminium and the propellers of stainless steel our aluminium bronze. SIDER Swing 150 Counter-rotating Hydrosta BV De Kalkovens 4 8064 PS Zwartsluis The Netherlands
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(hydraulic driven) As described in the technical paragraph, the precise dimensions of a Swing are determined in consultation with the naval architect. This documentation only gives the main dimensions. Contact us for specific information and digital construction drawings. Selectietabel voor sw SIDER Swing t.o.v. de lengte van het schip Hydrosta BV De Kalkovens 4 8064 PS Zwartsluis The Netherlands
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