Duty cycle.

Each motor must be rated for continuous duty, except a motor for an application listed in Table 111.25-15 or a similar duty must meet the minimum short-time rating stated in the table. Table 111.25-15 Application of motor Minimum short-time rating of motor, in hours Deck winch and direct acting capstan Half. Deck winch with hydraulic transmission Continuous at no load followed by 1 ⁄ 2 hr. at full load. Direct acting windlass One fourth. Windlass with hydraulic transmission Half hour idle pump operation, followed by 1 ⁄ 4 hr. full load operation. Steering gear, direct acting One. Steering gear, indirect drive Continuous operation at 15 pct. load followed by 1 hr. at full load. Watertight door operators 1 ⁄ 12 . Boat winches 1 ⁄ 12 .