"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
New guidance for PBAs with trapdoors. Released 4.11.2020 at NZMPA Conference in Dunedin, NZ. Distinct difference to suggestions in many other countries, is that we challenge operators who have the ladder suspended from the accommodation ladder (gangway) and not secured to the ship. SOLAS states that pilot ladder shall be secured to the ship, and securing strongpoints, shackles and ropes shall be as strong as the sideropes.
SOMERSET, Mass, − December 18, 2019 – The Association of Maryland Pilots has ordered a new class of pilot boat from Gladding-Hearn Shipbuilding, Duclos Corporation. Called the “Baltimore Class” after the pilots’ base of operations at the Port of Baltimore, the vessel’s delivery is scheduled for April 2021.
The United Kingdom Maritime Pilots Association (UKMPA), is the representative professional body for Maritime Pilots in the United Kingdom. Almost every ship entering or leaving a port, is required under UK law to engage a duly Authorised Maritime Pilot, who either boards the vessel in port or at sea and takes conduct of the safe navigation of that vessel. This undertaking is critical to protecting the country’s national infrastructure and environment from damage or pollution, supporting the UK’s economy, and ensuring the safe, timely and efficient movement of all trade.