A handy and simple tool to determine in a minimum time what is really needed as tug assistance, is the Bollard Pull Calculator which calculates in an approximate way the total required tug power for ships in various conditions of wind and current. This tool can be loaded as an app on the smart phone.
Understanding the fundamentals of the pivot point is highly required for understanding the alteration of the courses. Pivot point is an imaginary point on the vessel which turns on a circular path on the perimeter of vessel’s turning circle when the vessel makes a turn. The knowledge about the position of the pivot point in a manoeuvring situation provides the ship handler with the information on the geometry of motion of the ship.
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.
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 Pilots’ Association of the Bay and River Delaware have ordered another pilot boat from Gladding-Hearn Shipbuilding, Duclos Corporation. It’s the pilots’ association’s fourth Chesapeake Class launch and eleventh pilot boat built by the Somerset, Mass., shipyard since 1957. Delivery of the new pilot boat is scheduled for 2024.
19 M Pilot Boats designed and built at Bilimora, Gujarat by A. H. Wadia Boat Builders. Vessels meets the requirements set by Indian Register of Shipping and is registered as RSV Type 4 Vessel of MS Act. Hull is constructed in steel and Superstructure is in Composite. Boats were able to achieve speeds above 22 knots. Unique hull form is responsive and easily maneuverable. Custom accommodation layout is spaciously arranged for 8 Crew members. Engine room hosts 2 Main Diesel Engines and 2...
