Section 8 - Propulsion System
320 Outrage-Owner’s Manual
Propeller Information
Under no circumstance use a propeller which allows
the engine to operate at a higher than recommended
RPM.
NOTICE
NOTICE
It is advised that you always carry a spare propeller,
propeller hardware and propeller wrench on board.
Should your propeller become damaged it can be eas-
ily replaced.
Disconnect power by moving the battery switch to the
“OFF” position prior to removing the propeller.
DANGER
The engine(s) on the 320 Outrage
have been equipped with propellers
which our tests have shown to be
best suited for general use under nor-
mal conditions and load. In some
situations you may wish to change the propellers to
give your boat slightly different performance char-
acteristics. Changing your boats running surface, such
as the addition of bottom paint will affect the type
and size of propeller required.
In general, changing to a lower pitch propeller will
increase acceleration and load pulling capability, with
a slight decrease in top end speed. If you choose to
change propellers, the type should be discussed with
your Boston Whaler® dealer.
PROPELLER
All propellers are designed to provide maximum for-
ward thrust, so the reverse thrust of the propeller will
not be as efficient. The 320 Outrage uses propellers
that are designed to counter-rotate, which means that
the port engine’s propeller rotates the opposite di-
rection of the starboard engine. This will balance the
torque effects of the engine’s and along with the hy-
draulic steering will reduce driver fatigue by elimi-
nating the constant need to fight the wheel.
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Propeller Assembly
8
Diffuser ring
9
Blade back
10
Blade root
11
Outer hub
12
Inner hub
13
Exhaust passage
14
Drive sleeve adapter
15
Lock ring
16
Prop nut
1
2
3
4
5
6
7
8
9
10
15
11
12
13
14
16
1
Shaft, (from en-
gine)
2
Forward thrust
washer
3
Drive sleeve
4
Blade face
5
Leading edge
6
Blade tip
7
Trailing edge
1
2
3
1
Propeller Diameter
2
1 Revolution, (Pitch)
3
Propeller Rake
43
