Which factor is NOT typically included in propulsion motor data?

The correct answer focuses on the concept of cooling requirements not being a typical part of propulsion motor data. When assessing propulsion motors, key parameters such as power rating, power factor, and frequency are critical for understanding motor performance and compatibility with the electrical system.

Power rating indicates the output power the motor can deliver, which is essential for determining if the motor meets the thrust requirements of the vessel. Power factor provides insight into the efficiency of the motor’s electrical consumption, which is vital for understanding the real power used in relation to the apparent power drawn. Frequency is crucial since it affects the speed of the motor and must align with the electrical system’s specifications to ensure proper operational condition.

In contrast, while cooling requirements are important for motor operation and longevity, they are not standard data provided with the motor specifications. Instead, cooling systems can be determined based on the operating environment and load conditions after installation. Therefore, cooling requirements do not fit within the standard parameters typically associated with propulsion motor data.