What components does the raw water cool on board the RB-M 45?

The raw water system on the RB-M 45 serves a critical function by cooling essential components of the vessel's engine and associated systems. The correct answer emphasizes the cooling of the engine, reduction gear (red gear), and air conditioning (A/C) systems.

The engine generates significant heat during operation, which must be managed to maintain optimal performance and prevent overheating. Raw water cooling helps maintain the engine's temperature within safe operating limits by circulating unprocessed water through a heat exchanger. This process effectively absorbs heat from the engine and transmits it to the raw water, which is then expelled, enabling consistent engine function.

Similarly, the reduction gear, which transfers power from the engine to the propulsion system, also generates heat during operation. The cooling process ensures that it operates efficiently and avoids damage due to excessive heat.

Lastly, the air conditioning system also relies on the raw water cooling method to ensure that the internal environment of the vessel remains comfortable for the crew.

Understanding this cooling mechanism is important for maintaining the operational integrity of these crucial systems on the RB-M 45, ensuring reliable performance during missions.