Skip to main content

Safe Manning

The principles of minimum safe manning set out in section 3 to ensure the safe operation of ships to which article III of the 1978 STCW Convention, as amended, applies, and the security of ships to which chapter XI-2 of the 1974 SOLAS Convention, as amended,
The capability to
  •  Maintain safe navigational, port, engineering and radio watches in accordance with regulation VIII/2 of the 1978 STCW Convention, as amended, and also maintain general surveillance of the ship;
  •  Moor and unmoor the ship safely;
  •  Manage the safety functions of the ship when employed in a stationary or near-stationary mode at sea;
  • Perform operations, as appropriate, for the prevention of damage to the marine environment;
  • Maintain the safety arrangements and the cleanliness of all accessible spaces to minimize the risk of fire;
  • Provide for medical care on board ship;
  • Ensure safe carriage of cargo during transit;
  • Inspect and maintain, as appropriate, the structural integrity of the ship; and
  • Operate in accordance with the approved Ship's Security Plan; and
The minimum safe manning of a ship should be established taking into account all relevant factors, including the following
  • Size and type of ship;
  • Number, size and type of main propulsion units and auxiliaries;
  • Level of ship automation;
  • Construction and equipment of the ship;
  • Method of maintenance used;
  • Cargo to be carried;
  • Frequency of port calls, length and nature of voyages to be undertaken;
  • Trading area(s), waters and operations in which the ship is involved;
  • Extent to which training activities are conducted on board;
  • Degree of shoreside support provided to the ship by the company;
  • Applicable work hour limits and/or rest requirements; and
  • The provisions of the approved Ship's Security Plan


  1. I built a fence for my backyard using some metal pieces just a few days ago. My fence is built with the help of a Miller 211 welding machine, which I use to connect the metal parts with welding. Thanks to this welding equipment, my job is much simpler. Miller 211 for sale.

  2. Tanks of varying sizes are used for various sorts of welding operations. If you are a homeowner who uses MIG welding, there are three sizes of tanks or cylinders accessible to you: 40 cubic feet, 80 cubic feet, and 125 cubic feet depending on your needs (cf). According to your requirements, you should choose the appropriate tank capacity. Welding tank sizes.


Post a Comment

If you have any doubts.Please let me know

Popular posts from this blog

Differences between MC/MC-C and ME/ME-C engines

The electrohydraulic control mechanisms of the ME engine replace the following components of the conventional MC engine: Chain drive for camshaft Camshaft with fuel cams, exhaust cams and indicator cams Fuel pump actuating gear, including roller guides and reversing mechanism Conventional fuel pressure booster and VIT system Exhaust valve actuating gear and roller guides Engine driven starting air distributor Electronic governor with actuator Regulating shaft Engine side control console Mechanical cylinder lubricators. The Engine Control System of the ME engine comprises: Control units Hydraulic power supply unit Hydraulic cylinder units, including: Electronically controlled fuel injection, and Electronically controlled exhaust valve activation Electronically controlled starting air valves Electronically controlled auxiliary blowers Integrated electronic governor functions Tacho system Electronically controlled Alpha lubricators

Why is a man hole door elliptical in shape?

Any opening in a pressure vessel is kept to a minimum and for a man entry an elliptical hole  is lesser in size than the corresponding circular hole. More over it is prime concern to have a  smoothed generous radius at the corners to eliminate stress concentration. Hence other  geometrical shapes like rectangle and square are ruled out.  To compensate for the loss of material in the shell due to opening, a doubler ring has to be  provided around the opening. The thickness of the ring depends on the axis length along the  dirrection in which the stresses are maximum and the thickness of the shell. It is important to  align the minor axis along the length of the vessel, as the stress in this direction is  maximum. Longitudinal stress: Pd/2t where P= pressure inside the vessel, d= diameter of the arc, t=  thickness of the shell plating  Circumferential stress: Pd/4t  More over a considerable material and weight saving is achieved as minor is along the  direction of maximum stress.

Main engine interlocks

Interlocks are provided so that the engine can be started or reversed only when certain conditions have been fulfilled. When there is a remote control of engines, it is essential to have interlocks. This reduces the possibility of engine damage and any hazards to the operating personnel. Turning gear Interlock . This device prevents the engine from being started if the Turning gear is engaged. Running Direction Interlock . This prevents the fuel from being supplied if the running direction of the engine does not match the Telegraph. Starting Air Distributor in end position . This prevents starting from taking place if the shifting of the Distributor has not been completed. Main Lube. oil pressure, Piston cooling pressure, Jacket water pressure, and important parameters must be above the required minimum. Auxiliary Blower Interlock . The Auxiliary Blower is provided in case of Constant pressure turbo charging. Air Spring pressure Interlock . In case of the present generation