Yamaha F50F - Propeller Selection; Propeller Size; Selection

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Propeller selection
1
The performance of a boat and outboard
motor will be critically affected by the size
and type of propeller you choose. Propellers
greatly affect boat speed, acceleration,
engine life, fuel economy, and even boating
and steering capabilities. An incorrect choice
could adversely affect performance and
could also seriously damage the engine.
Use the following information as a guide for
selecting a propeller that meets the operating
conditions of the boat and the outboard
motor.
Propeller size
The size of the propeller is indicated on a
propeller blade, on the propeller boss end.
a
Propeller diameter (in inches)
b
Propeller pitch (in inches)
c
Propeller type (propeller mark)
Selection
When the engine speed is at the full throttle
operating range (5,000–6,000 r/min), the
ideal propeller for the boat is one that pro-
vides maximum performance in relation to
boat speed and fuel consumption.
F50, F60
FT50, FT60
S69W1030
× -
a
bc
S69W1040
× -
a
bc
S69W1050
× -
a
bc
Propeller size (in) Material
10
×
15 - G
Aluminum
10 1/4
×
14 - G
10 3/8
×
13 - G
10 5/8
×
12 - G
10 3/4
×
16 - G
10 3/4
×
17 - G
11
×
15 - G
11 1/8
×
13 - G
11 1/4
×
14 - G
11 3/8
×
12 - G
11 5/8
×
11 - G
12 1/4
×
9 - G
10 1/4
×
14 - G
Stainless
10 1/4
×
15 - G
10 1/4
×
16 - G
10 5/8
×
13 - G
11 1/4
×
14 - G
11 1/2
×
13 - G
11 3/4
×
12 - G
12
×
11 - G
Propeller size (in) Material
14
×
11 - K Aluminum
Features and benefits / Propeller selection