DYNAMIC POSITIONING TRAINING & DP COURSES >> Dynamic Positioning Officer and Sea-time Calculation
Rishi Kashyap
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Dynamic Positioning Officer and Sea-time Calculation


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Only watch-keeping sea-time gained on board DP vessels officially classed as DP Vessel by one of the classification societies (Certificate on board) will be counted towards the required sea-time.

Minimum Sea-time required for Stage 4 of the Dynamic Positioning Training Scheme

  1. DP 1 Vessels only
  2. 180 days watch-keeping on board DP 1 vessels       =    Limited certificate
  3. DP 2 Vessels only
  4. 180 days watch-keeping on board DP 2 or 3 vessels  =    Full/Unlimited certificate
  5. Mixed DP Class vessels
  6. If served on board various DP class vessels and want to obtain a Full/Unlimited certificate then Watch-keeping time must include at least 60 days DP2 or DP 3 time.
For Calculation purpose :
 (a) DP 1 vessels are equal to ½ a day
 (b) DP 2 or 3 vessels are equal to 1 day
e.g. If you have 60 DP 2 days then you will need 240 days DP 1 time to qualify for a DP Full/Unlimited certificate.
Sea-time on DP 2 vessels :  60 days  = 60 days (Minimum Sea-time required)
Sea-time on DP 1 vessels :  240 days =  120 days
Total Sea-time for DP Unlimited certificate = 180 days

Once the Dynamic Positioning system training scheme is complete, a testimonial or assessment is provided by the Master of the DP vessel to verify the suitability of the Dynamic Positioning Officer concerned to carry out DP operations and keep a bridge DP watch. It is on the strength of evidence contained within NI logbook that individual DPO certificates are issued by the Nautical Institute.

For Stage 4 of the Dynamic Positioning Training Scheme, When the watch-keeping is done on a Class 1 DP vessels , a limited certificate will be issued, otherwise a full / Unlimited DP certificate will be issued. All the 5 stages of the Dynamic Positioning training scheme are witnessed and recorded by entries in a DP Logbook, held by the trainee. All entries to be validated by the Master. The Nautical Institute logbook, dynamic positioning training scheme and certificate are internationally accepted.

Rishi Kashyap | | EDIT

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