The SEA IV was designed and built in 1917 by Henry Potez, Louis Coroller, and Marcel Bloch. It was a derivative of their previous SEA II design, equipped with a more powerful Lorraine engine of 261 kW (350 hp). It made its first flight during the first quarter of 1918, probably near Plessis-Belleville. It was initially tested by Gustave Douchy, a flying ace of 9 victories, then by the pilots of the Centre d'essais en Vol at Villacoublay. The "Ministère de l'Armement et des Fabrications de guerre" (Ministry of Armament and War Production) soon placed an order for 1,000 machines, making the SEA IV the first Dassault-designed aircraft to reach production.[1]
Operational historyedit
On August 24, 1918, General Duval, commander of Aéronautique at General Headquarters foresaw the need for two variants to equip the escadrilles at the beginning of 1919: the SEA IV A2 for observation and the SEA IV C2 for fighting. In October, General Headquarters ordered the commissioning of a flotilla to operate these aircraft, and therefore required production to reach 200 planes per month during the first quarter of 1919, to have a force of 400 on hand by April 1.[1]
The Armistice, however, meant that the initial order of 1,000 was cancelled, and in the end, only 115 examples were built. These C2s were used for a number of years by several escadrilles in the "Regiments d'Aviation" at Le Bourget.[1]
A further 25 were built by Aéroplanes Henry Potez as the Potez VII, a luxury touring aircraft, and one further example formed the basis of a racing aircraft.[1]
Variantsedit
SEA IV
Basic production variant
SEA IV P.M.
A long-distance aircraft with additional fuel tanks giving an endurance of 6 hours.
SEA IV floatplane
Under construction at the time of the Armistice in November 1918
^ abcdeDavilla, Dr. James J.; Soltan, Arthur M. French aircraft of the First World War. Flying Machines Press. pp. 460–462. ISBN1891268090.
^Parmentier, Bruno (8 December 2017). "SEA IV". Aviafrance (in French). Paris. Retrieved 7 December 2018.
Bibliographyedit
Coroller, Jean-Louis (December 1997). "Les Avions S.E.A.: ou la préhistoire des Avions Marcel Bloch et des Avions Henry Potez" [The Aircraft of S.E.A., or the Prehistory of the Marcel Bloch and Henry Potez Aircraft Companies]. Avions: Toute l'aéronautique et son histoire (in French) (57): 35–41. ISSN 1243-8650.
Further readingedit
Hirschauer, Louis; Dollfus, Charles, eds. (1920). L'Année Aéronautique: 1919-1920. Paris: Dunod. p. 32.
Pigne, M. Aeroplanes Henri Potez (in French). Paris: CH. Blitz. pp. 1–4.
External linksedit
Dassault official home page
February 15, 2024
french, seat, military, aircraft, world, immediate, post, role, fightermanufacturer, société, etudes, aéronautiques, designer, henry, potez, louis, coroller, marcel, blochfirst, flight, 1918number, built, contents, development, operational, history, variants, . The SEA IV was a French two seat military aircraft of World War I and the immediate post war era SEA IVRole FighterManufacturer Societe d Etudes Aeronautiques SEA Designer Henry Potez Louis Coroller and Marcel BlochFirst flight 1918Number built 115 Contents 1 Development 2 Operational history 3 Variants 4 Operators 5 Specifications SEA IV C2 6 See also 7 References 8 Bibliography 9 Further reading 10 External linksDevelopment editThe SEA IV was designed and built in 1917 by Henry Potez Louis Coroller and Marcel Bloch It was a derivative of their previous SEA II design equipped with a more powerful Lorraine engine of 261 kW 350 hp It made its first flight during the first quarter of 1918 probably near Plessis Belleville It was initially tested by Gustave Douchy a flying ace of 9 victories then by the pilots of the Centre d essais en Vol at Villacoublay The Ministere de l Armement et des Fabrications de guerre Ministry of Armament and War Production soon placed an order for 1 000 machines making the SEA IV the first Dassault designed aircraft to reach production 1 Operational history editOn August 24 1918 General Duval commander of Aeronautique at General Headquarters foresaw the need for two variants to equip the escadrilles at the beginning of 1919 the SEA IV A2 for observation and the SEA IV C2 for fighting In October General Headquarters ordered the commissioning of a flotilla to operate these aircraft and therefore required production to reach 200 planes per month during the first quarter of 1919 to have a force of 400 on hand by April 1 1 The Armistice however meant that the initial order of 1 000 was cancelled and in the end only 115 examples were built These C2s were used for a number of years by several escadrilles in the Regiments d Aviation at Le Bourget 1 A further 25 were built by Aeroplanes Henry Potez as the Potez VII a luxury touring aircraft and one further example formed the basis of a racing aircraft 1 Variants editSEA IV Basic production variant SEA IV P M A long distance aircraft with additional fuel tanks giving an endurance of 6 hours SEA IV floatplane Under construction at the time of the Armistice in November 1918Operators edit nbsp FranceSpecifications SEA IV C2 editData from French aircraft of the First World War 1 Aviafrance SEA IV 2 General characteristicsCrew 2 Length 8 5 m 27 ft 11 in Wingspan 12 m 39 ft 4 in Height 3 m 9 ft 10 in Wing area 36 8 m2 396 sq ft Empty weight 1 040 kg 2 293 lb Gross weight 1 620 kg 3 571 lb Powerplant 1 Lorraine Dietrich 12Da V 12 water cooled piston engine 280 kW 370 hp Propellers 2 bladed wooden fixed pitch propellerPerformance Maximum speed 218 km h 135 mph 118 kn at sea level215 km h 134 mph 116 kn at 1 000 m 3 300 ft 210 km h 130 mph 110 kn at 2 000 m 6 600 ft 206 km h 128 mph 111 kn at 3 000 m 9 800 ft 203 km h 126 mph 110 kn at 4 000 m 13 000 ft 197 km h 122 mph 106 kn at 5 000 m 16 000 ft dd dd dd dd Range 700 km 430 mi 380 nmi Endurance 2 25 hours Service ceiling 7 400 m 24 300 ft Time to altitude 1 000 m 3 300 ft in 3 minutes 1 second2 000 m 6 600 ft in 6 minutes 18 seconds 3 000 m 9 800 ft in 10 minutes 45 seconds 4 000 m 13 000 ft in 16 minutes 5 000 m 16 000 ft in 23 minutes 29 seconds dd dd dd dd Armament 1 fixed forward firing synchronised 7 70 mm 303 in Vickers machine gun 2 7 70 mm 303 in Lewis guns on a flexible T O 3 mount for the observerSee also editRelated lists List of military aircraft of France List of fighter aircraftReferences edit a b c d e Davilla Dr James J Soltan Arthur M French aircraft of the First World War Flying Machines Press pp 460 462 ISBN 1891268090 Parmentier Bruno 8 December 2017 SEA IV Aviafrance in French Paris Retrieved 7 December 2018 Bibliography editCoroller Jean Louis December 1997 Les Avions S E A ou la prehistoire des Avions Marcel Bloch et des Avions Henry Potez The Aircraft of S E A or the Prehistory of the Marcel Bloch and Henry Potez Aircraft Companies Avions Toute l aeronautique et son histoire in French 57 35 41 ISSN 1243 8650 Further reading editHirschauer Louis Dollfus Charles eds 1920 L Annee Aeronautique 1919 1920 Paris Dunod p 32 Pigne M Aeroplanes Henri Potez in French Paris CH Blitz pp 1 4 External links editDassault official home page Retrieved from https en wikipedia org w index php title SEA IV amp oldid 1101398152, wikipedia, wiki, book, books, library,
