What typically triggers the limit switch on gravity davits?

The limit switch on gravity davits is typically triggered when the davit reaches a near-final stowage position. This safety feature is designed to ensure that the davit arm does not go beyond its intended range of motion during the launching or stowing process. When the davit's arm approaches this stowage position, the limit switch activates, which can prevent further movement and ensure that the davit is secured in the correct position. This helps to enhance safety by reducing the risk of damage to the equipment and ensuring that the lifeboat is safely stored when not in use.

When considering the other options, while excess weight on the davit could potentially affect its operation, it is not a designed trigger for the limit switch. High wind conditions, likewise, may impact the stability of the davit operations, but they do not directly engage the limit switch. Lastly, full descent into the water is an important part of the davit’s operation but does not relate to the limit switch function, which is primarily targeted at stowage and operational limits rather than the entire descent process.