This video shows an introduction on the Spiral-Test-Manoeuvre and describes the procedure how to steer through this manoeuvre and measure the data needed. The results will be displayed in a characteristic diagram allowing to identify stable and unstable conditions and related, detailed information, e.g. spiral loop width and height, rudder angle of neutral effect. Samples of stable and unstable ship behaviour demonstrations will be shown by Fast Time Simulation using the SAMMON Planning tool.
In this movie the efficiency of two different pod operation strategies is compared: With azimuth propeller ships the Pods can be used in two ways to control the speed, e.g. for speed reduction: 1. by adjusting the engine orders, e.g. by reducing the RPMs to get lower speed - this means to drive the ship in the same conventional way as for twin screw vessels, 2. by turning both pods either in- or outward (TOE-IN or TOE-OUT) to reduce the forward thrust and therefore reducing the speed – the...
Harbour Services Australia was the client for this ultra-efficient pilot vessel, Dongara Marine's second Berkeley Class pilot boat to operate from the port of Fremantle. Delivered in June 2019 it joined Fremantle Pilots’ Berkeley, which had already been operating with great success in the Western Australian port since 2015. Purpose-designed to maximise overall operability and the safety and comfort of pilots and crew even in demanding sea conditions, the Berkeley Class provides: • High open...
Het Nederlands Loodswezen BV is een organisatie die de aangesloten registerloodsen de middelen verschaft om hun werk uit te oefenen. Zo int het Loodswezen de loodsgelden en zorgt de organisatie voor het transport van en naar zeeschepen. We zien hier een prachtig staaltje inparkeren door de Pioneer in de speciaal daarvoor aangelegde loodsbotenhaven in Vlissingen; naast het Keizersbolwerk. Klaar om de Westerschelde weer op te varen.
