Yamaha 2CMH Rigging Manual page 61

PROPELLER SPECIFICATIONS
VMAX SERIES
These polished stainless steel propellers are
designed for a high-speed and light weight
special boat with high-power engine for better
performance.
These specialized propellers are generally more
aggressive than the ventilated type propellers.
PERFORMANCE
These stainless steel propellers with vents for
exhaust gas induction offer the best accelera-
tion and top end performance causing the
engine rpm rapidly increasing with a high rake,
progressive pitch and more cup.
It allows higher transom mounting such as bass
boats, yet does not increase steering torque.
HIGH PERFORMANCE
The progressive pitch design, highly cupped
blades, and special small hub propellers for
high-performance runabout boats.
The through-hub exhaust system allows the
exhaust gas to outlet the leading edge of each
blade for enhanced acceleration.
WEEDLESS
This is designed for use in shallow water.
It eliminates weed buildup around the propeller
hub.
DUAL THRUST
This is designed for sailboat or other large dis-
placement boats.
This redirects the exhaust gases so that the
blades cut through "clean" water, for higher
efficiency.
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