The model tests should generally be carried out according to the Recommended Procedures given by the 26th ITTC Manoeuvring Committee, i.e.:
Captive tests (PMM + CMT): Captive Model Test Procedure, No. 7.5-02-06-02, 2008
Free model tests: Free-Sailing Model Test Procedure, No. 7.5-02-06-01, 2008