What is the problem with using your boat's engine to drive it onto a trailer?

Using your boat's engine to drive it onto a trailer can create a scenario where the propeller's wash, or the flow of water generated by the spinning propeller, displaces a significant amount of water. This action can lead to the formation of an erosion hole just beyond the ramp. The displaced water creates turbulence and can wash away sand or gravel at the bottom of the ramp, leading to instability and potentially making it difficult to load the boat safely.

If the boat is not aimed correctly or if the current is strong, the propeller wash can further exacerbate this issue and contribute to a hazardous situation, making it unsafe for both the boat and the trailer. Therefore, it’s essential to approach loading with caution and to consider alternative methods for retrieving the boat, such as using the trailer winch or physically guiding the boat onto the trailer rather than relying solely on the engine.