A SPEED MONITORING DEVICE

摘要

A speed monitoring device (1) for monitoring the speed of a boat (2) through water, the monitoring device (1) comprising a body member (5) for mounting on the hull (6) of the boat (2), a monitoring means (17) mounted in the body member (5) for interacting with the water and being responsive to the speed of the boat (2) relative to the water, a mounting means (10, 53, 55) for mounting the body member (5) on the hull (6) adjacent an opening (8) in the hull for accommodating the centreboard (12), the mounting means (10, 53, 55) being engageable with the body member (5) and being adapted for passing through the opening (8) in the hull (6), and being anchorable to the boat (2) for securing the body member (5) to the hull (6), and a communicating means (24) for relaying signals from the monitoring means (17) to a control means (25) located within the boat (2) for providing a signal suitable for feeding to a visual display means (46) for displaying the speed of the boat (2) relative to the water.