Video Spiral-Test -Manoeuvre for detailed identification of Yaw Stability using Samples of Cruise Ship
published on 29 September 2021
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.
Opinion Scientific Fact: The ‘traditional’ understanding of the ship’s pivot point is wrong!
by Tim Cummins, Harbour Pilot, Portsmouth International Port - published on 9 July 2020
Article New app: Pilot´s Tug Assist Tool PTAT - Bollard Pull Calculation for Marine Pilots
by Capt. M. Baykal Yaylai - published on 19 February 2020
Required tug power and number of tugs needed in variable conditions of wind, current and waves isin most cases an assessment made by pilots based on their professional experience. However, assessments will raise questions by lawyers if something goes wrong. They will use tools to calculate what really is needed with respect to tug power and number of tugs. They have furthermore the advantage of time.
Video Operation of POD Ships - Discussion on Efficiency comparing Conventional and IN-OUT POD strategy
published on 8 June 2022
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...
Article Securing pilot ladders at intermediate lengths
by Kevin Vallance deep sea pilot and author - published on 6 January 2020
Video Opinion by Nasir Khan: Pilot transfer by tug boat is unsafe
by Nasir Khan - published on 11 May 2022
Pilot transferring is unsafe and dangerous by Harbor Tug Boat from or to the ship. I analyzed and observed at many ports, Pilots using Harbor Tug Boat for transferring. Where Tug boats decks are not specially designed for the Pilot transferring. This is difficult for the Pilot during Embarkation and specially Disembarkation. Video courtesy Nasir Khan. Find Capt. Pilot Nasir Khan on Marine-Pilots.com: https://www.marine-pilots.com/members/112390