The Donnet-Denhaut flying boat was a maritime patrol and anti-submarine warfare aircraft produced in France during the First World War. Known at the time simply as "Donnet-Denhaut" or "DD" flying boats, the DD-2, DD-8, DD-9, and DD-10 designations were applied retrospectively to denote the various changes in configuration made during their service life.[1]
Developed in response to a French Navy requirement, these were biplaneflying boats of conventional configuration with two-bay unstaggered wings, and a Salmson R9 160 hp radial engine,[2] mounted pusher-fashion on struts in the interplane gap. The French Navy ordered some 90 aircraft in this original configuration (later dubbed DD-2), and in 1917, requested Donnet-Denhaut to redesign the aircraft to take advantage of the new Hispano-Suiza 8 engine. So equipped, the Navy ordered another 365 machines. In order to take full advantage of the more powerful engine, Donnet-Denhaut increased the wingspan by adding a third bay to the wing cellule and used the extra lift to incorporate a place for a second gunner, bringing the total crew to three. This version (later, the DD-8) became the most produced, with perhaps 500 aircraft built. The DD-8 was also known as the Donnet-Denhaut 300-hp.
Further developments added a second machine gun to each gunner's station (the DD-9) and twin engines mounted in a push-pull configuration (the DD-10). Following the war, a few military surplus DDs were remanufactured as the Donnet HB.3 and operated commercially for a time.
Operational historyedit
Apart from French Navy service, DD flying boats were operated by the United States Navy in Europe, flying from Île-Tudy and Dunkirk to protect convoys from submarines. Some 50 aircraft of this type were purchased, and the first attack (against U-108; unsuccessful) took place on 23 April 1918.[3]
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Le Roy, Thierry (October 2000). "Courrier des Lecteurs" [Readers' Letters]. Avions: Toute l'Aéronautique et son histoire (in French) (91): 4. ISSN 1243-8650.
Lopes, Mário Canongia (October 2000). "Courrier des Lecteurs" [Readers' Letters]. Avions: Toute l'Aéronautique et son histoire (in French) (91): 4–5. ISSN 1243-8650.
Morareau, Lucien (July 2000). "Les hydravions Donnet-Denhaut de l'Aviation Maritime Française" [The Donnet-Denhaut Flying Boats of French Naval Aviation]. Avions: Toute l'Aéronautique et son histoire (in French) (88): 28–37. ISSN 1243-8650.
Morareau, Lucien (August 2000). "Les hydravions Donnet-Denhaut de l'Aviation Maritime Française". Avions: Toute l'Aéronautique et son histoire (in French) (89): 14–26. ISSN 1243-8650.
Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 326.
Jane's All the World's Aircraft 1919. London: Sampson Low. p. 228.
A.Soltan, J.Davilla. French Aircraft of the First World War.
P.Bowers, G.Swanborough. United States Navy Aircraft Since 1911. Putnam.
Hirschauer, Louis; Dollfus, Charles, eds. (1920). L'Année Aéronautique: 1919-1920. Paris: Dunod. p. 31.
February 27, 2024
donnet, denhaut, flying, boat, maritime, patrol, anti, submarine, warfare, aircraft, produced, france, during, first, world, known, time, simply, donnet, denhaut, flying, boats, designations, were, applied, retrospectively, denote, various, changes, configurat. The Donnet Denhaut flying boat was a maritime patrol and anti submarine warfare aircraft produced in France during the First World War Known at the time simply as Donnet Denhaut or DD flying boats the DD 2 DD 8 DD 9 and DD 10 designations were applied retrospectively to denote the various changes in configuration made during their service life 1 DD 2 DD 8 DD 9 DD 10Role Patrol flying boatManufacturer Donnet DenhautFirst flight 1915Primary users French NavyUnited States Navy Portuguese NavyNumber built ca 1 085 Contents 1 Design and development 2 Operational history 3 Operators 4 Specifications DD 8 5 See also 6 Notes 7 ReferencesDesign and development editDeveloped in response to a French Navy requirement these were biplane flying boats of conventional configuration with two bay unstaggered wings and a Salmson R9 160 hp radial engine 2 mounted pusher fashion on struts in the interplane gap The French Navy ordered some 90 aircraft in this original configuration later dubbed DD 2 and in 1917 requested Donnet Denhaut to redesign the aircraft to take advantage of the new Hispano Suiza 8 engine So equipped the Navy ordered another 365 machines In order to take full advantage of the more powerful engine Donnet Denhaut increased the wingspan by adding a third bay to the wing cellule and used the extra lift to incorporate a place for a second gunner bringing the total crew to three This version later the DD 8 became the most produced with perhaps 500 aircraft built The DD 8 was also known as the Donnet Denhaut 300 hp Further developments added a second machine gun to each gunner s station the DD 9 and twin engines mounted in a push pull configuration the DD 10 Following the war a few military surplus DDs were remanufactured as the Donnet HB 3 and operated commercially for a time Operational history editApart from French Navy service DD flying boats were operated by the United States Navy in Europe flying from Ile Tudy and Dunkirk to protect convoys from submarines Some 50 aircraft of this type were purchased and the first attack against U 108 unsuccessful took place on 23 April 1918 3 Operators edit nbsp FranceFrench Navy nbsp PortugalPortuguese Naval Aviation nbsp United StatesUnited States NavySpecifications DD 8 editGeneral characteristics Crew Three Length 10 75 m 35 ft 5 in Wingspan 16 80 m 55 ft 1 in Height 3 00 m 9 ft 10 in Wing area 53 0 m2 570 sq ft Empty weight 950 kg 2 100 lb Gross weight 1 800 kg 3 970 lb Powerplant 1 Hispano Suiza 8b 149 kW 200 hp Performance Maximum speed 130 km h 80 mph 70 kn Range 520 km 320 mi 280 nmi Endurance 4 hours Rate of climb 2 5 m s 500 ft min Armament 2 303 trainable Lewis guns in open cockpits at bow 2 35 kg 70 lb bombsSee also editAircraft of comparable role configuration and era FBA Type H Lohner LRelated lists List of maritime patrol aircraft List of flying boats and floatplanes List of World War I Entente aircraftNotes edit Donnet Denhaut DD 2 DD 10 Donnet Denhaut DD 2 DD 10 Their Flying Machines in Russian Retrieved 6 November 2019 Donnet Denhaut Flying Boat References edit nbsp Wikimedia Commons has media related to Donnet Denhaut flying boat Le Roy Thierry October 2000 Courrier des Lecteurs Readers Letters Avions Toute l Aeronautique et son histoire in French 91 4 ISSN 1243 8650 Lopes Mario Canongia October 2000 Courrier des Lecteurs Readers Letters Avions Toute l Aeronautique et son histoire in French 91 4 5 ISSN 1243 8650 Morareau Lucien July 2000 Les hydravions Donnet Denhaut de l Aviation Maritime Francaise The Donnet Denhaut Flying Boats of French Naval Aviation Avions Toute l Aeronautique et son histoire in French 88 28 37 ISSN 1243 8650 Morareau Lucien August 2000 Les hydravions Donnet Denhaut de l Aviation Maritime Francaise Avions Toute l Aeronautique et son histoire in French 89 14 26 ISSN 1243 8650 Taylor Michael J H 1989 Jane s Encyclopedia of Aviation London Studio Editions p 326 Jane s All the World s Aircraft 1919 London Sampson Low p 228 A Soltan J Davilla French Aircraft of the First World War P Bowers G Swanborough United States Navy Aircraft Since 1911 Putnam Hirschauer Louis Dollfus Charles eds 1920 L Annee Aeronautique 1919 1920 Paris Dunod p 31 Retrieved from https en wikipedia org w index php title Donnet Denhaut flying boat amp oldid 1157146055, wikipedia, wiki, book, books, library,
