Propeller Selection; Propeller Size; Selection - Yamaha E115A Service Manual

GEN
INFO

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 as
shown.
× −
a b c
a Propeller diameter (in inches)
b Propeller pitch (in inches)
c Propeller type (propeller mark)
1-11
General information
69D10020
-
b c
6B410035

Selection

When the engine speed is at the full throttle
operating range (4,500–5,500 r/min), the
ideal propeller for the boat is one that pro-
vides maximum performance in relation to
boat speed and fuel consumption.
Propeller size (in)
14 × 11 - K
13 5/8 × 13 - K
13 1/2 × 14 - K
12 1/2 × 15 - K
13 1/2 × 16 - K
13 × 17 - K
13 1/4 × 17 - K
13 × 19 - K
12 5/8 × 21 - K
13 × 21 - K
13 × 23 - K
13 × 25 - K
14 × 20 - P
14 × 22 - P
14 × 24 - P
14 × 26 - P
14 × 28 - P
Material
Aluminum
Stainless steel
61U5H11