Admiralty Tidal Stream: Show at a glance both direction and rate of tidal streams at hourly intervals by careful and accurate use of graded arrows. Display mean neap and spring tidal rates in tenths of a knot. Include diagram to assist you to calculate the tidal stream rates for your required day.
Order with next working day delivery before 3PM Wednesday 16th April 2025 for delivery before Easter
(When in stock and sent to UK mainland* click HERE for more information).