Running in is the initial operation phase where a new engine, or a recently overhauled engine, is operated under controlled conditions to allow its internal components (such as pistons, cylinders, bearings, and seals) to wear in smoothly. This phase is crucial to ensure that the engine operates efficiently and has a long lifespan.
A load test is performed to ensure that a vessel’s engine, propulsion, and electrical systems can handle the maximum load they are expected to endure during regular operations. It involves running the engine or systems at full capacity to verify performance, durability, and efficiency.