As the channel name suggests ,we are indeed sailors who are on a journey to be skilled professionals .The aim is to impart knowledge via this channel , to each and every mariner colleague , so that when they come up the ranks , they are much eased with the skills they have gained through these videos. Times are changing drastically for seafarers with regards to new regulations , port restrictions & new type equipment .To keep ones self up to date is of utmost paramount. Safety is our main priority be it life , environment or vessel .
I've acted as a line handler while in the Navy. Usually just mooring another Frigate. I knew to hit the deck if a saw a tought line. These were nylon lines about 2 inches thick and could weigh hundreds of pounds. When stretched it was like a giant sling shot and could cut through metal.
My statistics: during 9 years boarding at least 1 small/medium bulk vessel per week I experienced 2 broken pilot ladders. Scary but always one rope left luckily.
My dad was a harbour pilot on a few continents. I had opportunities to ride with him on pilot boats out past the breakwater at a couple of these. He always got them to crack open a beer for me while he did the work. Huge respect for a hard job he did very well, following about 20 years as a merchant skipper in the 1940s - 60s.
The Pilot Vessel AB. should not be walking down the inboard side between the boat and the receiving vessel, even though there is plenty of room between them both. do it correctly every time, then you don't make mistakes. Also the pilot maker should not have used a pilot ladder with crimps as an example it is like saying it is OK do make a ladder using crimps; It is not OK. Also the ropes should be stretched before making a pilot ladder.
someone explain me is this is a mistake on the video, at 9:50 it says to use the pump discharge valve to restrict the flow , but since the pump works in RPM, the flow would be the same , by close/opening the valve only the speed of the liquid would change and the pressure , but not the volume, for example the water hose in our gardens, if you put your finger on the exit
Centrifugal pumps are not positive displacement pumps. Their liquid delivery can be controlled by throttling discharge (side) valve. Throttling the discharge valve on a centrifugal pump is a common method to restrict flow, but it's important to understand how it works and its potential consequences. How it works: Valve Restriction: When you partially close the discharge valve, you create a restriction in the pipeline. This restriction increases the resistance to flow. System Curve Shift: The increased resistance alters the pump curve, which represents the relationship between flow rate and head (pressure) required by the system. The pump curve shifts upwards and to the left. Intersection with Pump Curve: The new system curve intersects the pump curve (which represents the pump's performance characteristics) at a lower flow rate. This means that the pump delivers less fluid when the discharge valve is throttled. More info at www.pumpsandsystems.com/how-do-throttling-valves-affect-system-curve
You need to keep good spares of stainless steel union couplings also known as ermato couplings and a good enough stock of stainless steel tube fittings. Once cargo tanks are gas freed during ballast voyage , make an entry in cargo oil tank and repair the damaged / corroded pipe fitings .Make sure u keep monitoring the hydraulic oil level of hyd tank whilst trying out the valves after repair.
