"Effect of Drift Force and unstable moment"
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SAMMON - the IDEAL tool to identify manoeuvring capabilities of a ship - SAMMON - learning the EFFECTIVE way
How to get information for wind & current limits to be potentially encountered by thrusters – or current? - this will be described in this movie:
- Measure Drift speed, due to beam wind with no propulsion;
- Measure drift speed using full thrusters
- Estimate wind & current limits to be potentially encountered by thrusters – or current...
- Finally there is a simple formula as Rule of Thumb: the transverse drift speed is about 7-8% of wind speed!
Another very good explanatory video by Knud Benedict. Absolutely worth seeing.
Yaw Stability is an important element of Ships Manoeuvrability - both for course keeping and turning ability. This first video in a series explains the Basic Principles of stability in steady state equilibrium conditions and the forces / moments involved
This research paper could be useful tool for marine pilots as well during the risk analysis of STS manoeuvrings. In light of the findings of the research, STS manoeuvres may be effectively planned in order to improve overall safety and avoid the unexpected incidents. On the other hand, there is a dearth of literature on STS operation. As a result, this work has a significant input on the current literature.
The Arctic magnetic pole does not move anymore. It runs, faster and faster. In recent years, even faster than expected. Therefore, geo-researchers have now had an unscheduled change to their world model and adjust their calculations, so that navigation with compass and other navigation aids such as a Pilot Plug, used by pilots around the world, continue to work.
The Port of Townsville, northern Australia’s largest multi-cargo port, is expanding its fleet of pilot boats to four.
The Port has awarded Hart Marine a $3 million contract to build a 17.3m ORC vessel that is due for delivery later in 2020. The new high-tech vessel will be slightly longer but have the same design features as the PV Osprey which was delivered by Hart Marine in late 2017.
Rodman 41, es el último modelo de embarcaciones de prácticos diseñado y construido por Rodman. Con 12 metros de eslora el Rodman 41, se convierte en el barco de prácticos más competitivo y con mejores prestaciones del mercado. Equipado con todo lo necesario para realizar trabajos y servicios de puerto, donde se le requiera, de manera inmediata.