Propeller Selection; Propeller Size; Selection - Yamaha F50F Service Manual

Propeller selection

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 b c
×
-
a b c
a Propeller diameter (in inches)
b Propeller pitch (in inches)
c Propeller type (propeller mark)
6C13G11
1
×
-
a b c
S69W1030
S69W1040
S69W1050
Features and benefits / Propeller selection

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
Propeller size (in)
10 × 15 - G
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
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
FT50, FT60
Propeller size (in)
14 × 11 - K
1
Material
2
3
Aluminum
4
5
6
Stainless
7
Material
Aluminum
8
9
1-12