Yamaha F70AET Rigging Manual page 67

PROPELLER SPECIFICATIONS
SALTWATER SERIES XL
New polished stainless steel propellers have
been designed for big offshore boats to obtain
big impulsion power.
It features large diameter blade design, espe-
cially for F350 engine.
Shift Dampener System (SDS) has been
adopted to reduce the shock and noise when
shifting, and become possible to replace the
propeller damper.
L/H rotation propellers are available for multi-
engine applications.
SALTWATER SERIES HS4
Polished stainless steel propellers with 4-blade
for V6-3.1L, 3.3L and 4.2L engines, except for
VMAX series.
Compared with the conventional three blades
propeller, four blades make larger propeller
blade surface area, which can catch much
more water and obtain higher thrust perfor-
mance.
As a result, this propeller will obtain better
acceleration, and stable operation under rough
water.
However, generally boat top speed perfor-
mance is slightly lower than three blades pro-
peller.
Shift Dampener System (SDS) has been
adopted to reduce the shock and noise when
shifting, and it is possible to replace the propel-
ler damper.
L/H rotation propellers are available for twin
application.
2-3