Fuel and financial savings
for operators of small
fishing vessels

by
J.D.K.Wilson
Maputo, Mozambique

FAO - Food and Agriculture Organization
of the United Nations

FAO
FISHERIES
TECHICAL
PAPER

383

Table of Contents

PREPARATION OF THIS DOCUMENT

INTRODUCTION
Background
Aim of this guide
Sources of energy inefficiency

OPERATIONAL MEASURES
Engine operation
Slowing down
Engine performance
Engine maintenance
Hull condition
Fouling
Roughness
Fishing operations
Autonomy
Fishing technology
Navigation
Sail-assisted propulsion

TECHNICAL MEASURES
The propeller
Factors affecting propeller efficiency
Propeller design - have you got the correct propeller?
Hull design
Water flow into the propeller
Hull form
Engines
How big?
Choice of engine type
Engine installations
Exhaust and air flows

Annex 1
Record keeping

Annex 2
Decision assistant

Annex 3
A guide to optimum speed

Annex 4
Crouch's propeller method

BIBLIOGRAPHY

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© FAO 1999