23 Squadron No. 56 Squadron (operational trials only) No. 79 Squadron No. 85 Squadron No. 87 Squadron No. 90 Squadron No. 91 Squadron No. 141 Squadron American Expeditionary Force United States Army Air Service Specifications (Dolphin Mk I) See also References Notes Bibliography Bruce, J. M. "The Sopwith Dolphin." Aircraft in Profile, Volume 8. New York: Doubleday & Company, Inc., 1970. . Bruce, J. M. "The Sopwith 5F.1 Dolphin." Air Pictorial. Vol. 23, No. 5, May 1961. Bruce, J. M. War Planes of the First World War: Volume Three: Fighters. London: Macdonald, 1969, . Connors, John F. "The 11th Hour Sopwiths." Wings, Volume 6, No. 1, February 1976. Cooksley, Peter. Sopwith Fighters in Action (Aircraft No. 110). Carrollton, Texas: Squadron/Signal Publications, 1991. . Davis, Mick. Sopwith Aircraft. Ramsbury, Marlborough, Wiltshire: Crowood Press, 1999. . Franks, Norman. Dolphin and Snipe Aces of World War I (Aircraft of the Aces No. 48). Oxford: Osprey Publishing, 2002. . Kildoff, Peter. "Old Rheinebeck's New Dolphin". Air Enthusiast. No. 13, August–November 1980. pp. 50–55. King, Richard and Stephan Wilkinson. The Skies Over Rhinebeck: A Pilot's Story. Visalia, California: Jostens, 1997. . Kopañski, Tomasz Jan. Samoloty brytyjskie w lotnictwie polskim 1918–1930 (British Aircraft in the Polish Air Force 1918–1930) (in Polish). Warsaw: Bellona, 2001. . Lamberton, W.M., and E.F. Cheesman. Fighter Aircraft of the 1914–1918 War. Letchworth, UK: Harleyford, 1960. . Mason, Francis K. The British Fighter Since 1912. Annapolis, Maryland: Naval Institute Press, 1992. . Milberry, Larry. Aviation in Canada: The Pioneer Decades. Toronto: CANAV Books, 2008. . Milberry, Larry. Sixty Years: The RCAF and Air Command 1924–1984. Toronto: CANAV Books, 1984. . Payne, Stephen, ed. Canadian Wings: A Remarkable Century of Flight. Vancouver: Douglas & McIntyre, 2006. . Robertson, Bruce. Sopwith – The Man and His Aircraft. London: Harleyford, 1970. . Shores, Christopher F. et al. Above the Trenches: A Complete Record of the Fighter Aces and Units of the British Empire Air Forces 1915–1920. London: Grub Street, 1990. . External links Old Rhinebeck Aerodrome Sopwith Dolphin page, archived in 2014 Silent film footage of Cole Palen's Dolphin reproduction flying at Old Rhinebeck "Warbird Tales – Sopwith’s First World War – Part 7: The Dolphin" 1910s British fighter aircraft Military aircraft of World War I Dolphin Aircraft first flown in 1917 Biplanes with negative stagger Single-engined tractor aircraft