Norman Franks 
Dolphin and Snipe Aces of World War 1 [PDF ebook] 

This book focuses on the combat careers of the last of the famous Sopwith fighters to enter service during World War 1, the Dolphin and the Snipe, both of which were built on the strong scouting heritage of the Pup and Camel. The Dolphin featured the unique negative-staggered biplane wing arrangement, which provided the pilot with the best possible tactical view forward for seeking out his enemy. Used extensively on the Western Front, the Dolphin proved very effective in combat, with a substantial number of British aces scoring kills with the fighter. The Snipe was built as the successor of the highly successful Camel, and entered service with the fledgling Royal Air Force in the summer of 1918. Although seeing just a few months of action before the Armistice, the Snipe nevertheless proved its superiority over virtually all other fighters.