The Weems and Plath Road Rule - IALA Buoyage provides an identifaction handbook for the International Association of Lighthouse Authorities Maritime Buoyage System for both Regions A and B including all types of fixed and floating marks.

This is a simple-to use-navigation aid tool which shows the actual view of maritime buoyage systems with corresponding chart symbols.

The Weems and Plath Road Rule - IALA Buoyage takes a large amount of complex information and makes it easy to understand and quick to refer to with a design that is similar to a sliderule. Whether in a classroom or at the helm of a vessel, critical decisions can be made quickly and with confidence with the aid of the Road Rule - IALA Buoyage

Feature

• Displays 20 light characteristics
• Displays manoeuvring and warning signals
• Displays 12 rules of the road
• Magnifying lens for clear readability of definitions
• Constructed of durable two-sided black PVC
• Stored in vinyl sleeve
• Dimensions: 16 x 5 1/4 inches (407 x 133 mm)
• Weight: 0.4 lb (182 g)