scope:

Purpose

a. To provide full power and economy trial requirements for in-service non-nuclear surface ships and to delineate reporting procedures for updating trial requirements per references (a) through (c).

b. To establish policy on performance and special trials for new ship classes as required by the latest version of references (d) through (f). Performance data from these trials shall be used to add requirements for new ship classes and revise, wherever required, existing ship class requirements contained in reference (a).

Applicability

a. The full power and economy trials requirements of this instruction shall apply to non-nuclear surface ships (excluding boats and craft).

b. The performance and special trials requirements of this instruction shall apply to each ship class and is performed on only one ship (preferably the lead ship). These requirements shall also apply to existing ship classes that have undergone major modifications as determined by Commander, Naval Sea Systems Command (COMNAVSEASYSCOM) Naval Systems Engineering Directorate (NAVSEA 05).