5.4 Test programme

  5.4.1.1 The test programme should be witnessed by an Administration (whenever known, this should be the flag Administration), surveyors nominated by them for the purpose or by organizations recognized by them.

  5.4.1.2 The test programme should be conducted for the craft operating in each of the sea states stipulated in 3.1 above through direct physical testing at zero and forward speed on five headings relative to the wave direction, between head and following seas in 45 degrees increments.

  5.4.2.1 For test runs at zero speed, each run should have a duration of 10 min (full scale). Each test case at each heading should consist of a set of three tank runs with different wave realizations.

  5.4.2.2 Each tank run at forward speed should be of the maximum practical duration, in any case not less than the equivalent of 1 min at full scale, with the bow opening shutter being opened and closed at the beginning and end of the test period of each run. Each test run should comprise successive tank runs to represent not less than 10 min of continuous full scale operation in one wave realization at a given heading angle.

  5.4.2.3 Each test case per heading angle (at forward speed) should consist of an ensemble of test runs with different wave realizations. The number of associated wave realizations should depend on the heading angle as follows:

• .1 three wave realization trains in head and bow quartering seas;

• .2 four wave realization trains in beam seas; and

• .3 five separate wave realization trains in following and stern quartering seas.

  5.4.2.4 Each wave realization train will be of at least 10 min full scale total duration, each such wave train being taken from the required wave spectrum.

  5.4.3.1 As a minimum the following tests should be conducted: at a speed of V_W and design LCG, tests in waves specified in 3.1.

  5.4.3.2 If the craft does not comply with the water volume required to meet the exemption, then the tests can be repeated at lower speed to a minimum of 65% V_w.