San Juan Bay Pilot Boat

Took this in 2021. The pilot boat is helping to navigate through the Port of Barcelona.

Full titles read: "PILOT BOAT TRAGEDY"
L/S of almost submerged wreck of a Mersey pilot boat in which 22 men died during storm that wrecked her. M/S of wrecked lifeboat from pilot boat lying on beach.
FILM ID:1029.07
A VIDEO FROM BRITISH PATHÉ. EXPLORE OUR ONLINE CHANNEL, BRITISH PATHÉ TV. IT'S FULL OF GREAT DOCUMENTARIES, FASCINATING INTERVIEWS, AND CLASSIC MOVIES. http://www.britishpathe.tv/

Baltic Workboats 16m ice going diesel electric pilot boat

In fact, the pivot point that we “see” is a trick of the eye, it looks like the ship is rotating about this point but in fact it is elsewhere, a point that you cannot see.

This my attempt to do just that. This is a summary of all scientific papers and articles that I could find about the ship’s pivot point. I have added links to any videos associated with the publications and have also included any useful diagrams or equations that the authors published to help explain their research.

PTR Pilot Ladder

Tips by Captain Kris.
kris@mes.de
krisdedecker

It has been shown that a majority (51%) of pilot ladders is secured by means of D-shackles, when secured at intermediate length. Previous research (Evans, 2020) has proven that this method has only about 50% of the strength of the pilot ladder when secured at full length (“double ended ladder”), or by means of the “endless-sling” method.