Section 7 Testing

7.1.1 Control units are to be surveyed at the manufacturer's works and are to be tested in accordance with the approved test schedule to the Surveyor's satisfaction, see Pt 7, Ch 4, 1.3 Information and plans required to be submitted 1.3.5.(g).

7.1.2 Before a new installation (or any existing installation, which has been subject to alteration or addition which may affect the performance characteristics of the system) is put into service, sea trials are to be carried out to the approved schedule and to the Surveyor's satisfaction, see Pt 7, Ch 4, 1.3 Information and plans required to be submitted 1.3.5.(g).

7.1.3 The suitability of the dynamic positioning system is to be demonstrated during sea trials, observing the following:

1. Response of the system to simulated failures of major items of control and mechanical equipment, including loss of electrical power, verifying the findings of the FMEA where required.

2. Response of the system under a set of predetermined manoeuvres for changing:

   1. Location of area of operation.

   2. Heading of the ship.

3. Continuous operation of the system over a period of four to six hours.

7.1.4 Two copies of the dynamic positioning sea trial test schedules, as required by Pt 7, Ch 4, 1.3 Information and plans required to be submitted 1.3.5.(g), each signed by the Surveyor and Builder, are to be provided on completion of the survey. One copy is to be placed and retained on board the ship and the other submitted to LR.

7.1.5 Records and data regarding the performance capability of the dynamic positioning system are to be maintained on board the ship and are to be made available at the time of the Annual Survey, see Pt 1, Ch 3, 2.2 Annual Surveys 2.2.27.