Scapa Flow: The Defences of Britain’s Great Fleet Anchorage 1914–45
CONTENTS
INTRODUCTION
CHRONOLOGY
THE DEVELOPMENT OF SCAPA FLOW’S DEFENCES
World War I 
Between the wars
PRINCIPLES OF DEFENCE: ‘PLAN Q’ AND ‘PLAN R’
A TOUR OF THE FORTRESS
Radar and anti-aircraft defences Coastal defences Anti-invasion defences
Anti-submarine and anti-surface ship defences Air cover The Home Fleet
LIFE IN THE ORKNEY GARRISON
SCAPA FLOW AT WAR
THE AFTERMATH OF WORLD WAR II
THE DEFENCES OF SCAPA FLOW TODAY
Museums and other attractions
FURTHER READING
APPENDIX