Mercury Dynamic 250/260 Manual page 25

Boat Design
Categories
A
B
C
D
ISO 6185 part—The ISO 6185 part categories defines the power
rating for the boat. The following table shows these power
ratings.
ISO 6185 Part Categories
Part 1: Type ll
Part 2: Type V
Part 3: Type VII
eng
GENERAL INFORMATION
Navigation
Ocean
Offshore
Inshore
Sheltered
waters
Powered boats not exceeding 4.5 kw (6 hp)
Powered boats of 4.5 to 15 kw (6 to 20 hp)
Powered boats of 15 kw and greater (20+ hp)
Wind Force and Wave Height
Designed for extended voyages where
conditions may exceed wind force 8 (Beaufort
scale) and wave heights of 4 m (13 ft) and
higher.
Designed for offshore voyages where
conditions may experience wind force 8
(Beaufort scale) and wave heights up to 4 m
(13 ft).
Designed for voyages in coastal waters, large
bays, estuaries, lakes and rivers where
conditions may experience wind force 6
(Beaufort scale) and wave heights up to 2 m
(6.5 ft).
Designed for voyages on sheltered coastal
waters, small bays, small lakes, rivers, and
canals where conditions may experience wind
force 4 (Beaufort scale) and wave heights up to
0.5 m (1.5 ft).
Powered Boat Rating
21