Originally Posted by alt
Can anyone explain to me what exactly these category's mean?
My sports cruiser is a Cat B and I don't even really know what it means
Found this on the 'net. Hope it helps.
CE Boat Categories...
A. OCEAN: Designed for extended voyages where conditions may exceed wind force 8 (Beaufort scale) and significant wave heights of 4 m and above but excluding abnormal conditions, and vessels largely self-sufficient.
B. OFFSHORE: Designed for waves of up to 4m significant height and a wind of Beaufort force 8 or less. Such conditions may be encountered on offshore voyages of sufficient length or on coasts where shelter may not always be immediately available. Such conditions may also be experienced on inland seas of sufficient size for the wave height to be generated.
C. INSHORE: Designed for waves of up to 2m significant height and a typical steady wind force of Beaufort force 6 or less. Such conditions may be encountered on exposed inland waters, and in coastal waters in moderate weather conditions.
D. SHELTERED WATERS: Designed for voyages on sheltered coastal waters, small bays, small lakes, rivers and canals when conditions up to, and including, wind force 4 and significant wave heights up to, and including, 0.3m may be experienced, with occasional waves of 0.5m maximum height, for example from passing vessels.
This is just an easy guide to the category letters. There is much, much more behind getting the RCD approval in whichever category.
There was also an interesting set of pie charts showing that category B or calmer conditions prevailed in the Solent for 90% of the year, and C or calmer for 75% - see this link http://www.ceproof.com/Marine/rcd_design_category.htm