An investigation into actual strength of ladders and intermediate securing methods used.
Capt. and Marine Pilot Troy Evans (New Zealand) decided to look into pilot ladder strength and intermediate securing arrangements after MNZ put out what he felt was a confusing and unclear document about securing of pilot ladders.
Goodwin Sands, Kent. M/S bows of Trinity House ship "Ready". L/S "Tongue" lightship at sunset. Panning M/S from side to front of service ship (deck level). M/S lightship. M/S bridge of service ship, lightship passes. L/S two ships, pan to lightship. C/U ship's telegraph coming to "stop". M/S seaman pulls fresh water hose to lightship. L/S deck of service ship, general activity. C/U provisions waiting to be transported to lightship. M/S men passing food between ships. L/S side of...
Research on hydrodynamic interaction indicates that if the speed of the ship near a bank is too high, the rudder may be less able to cope with the forces induced and control will be lost. The Nautical Institute highlights this in its latest Mars Report, in which an LPG carrier hit a barge being towed by a tugboat as a result of hydrodynamic forces.
