Designed by René Leduc in 1938, it was built at the Breguet Aviation factory after a protracted, semi-secret construction phase kept at arm's length from German occupation authorities, and was finally completed in 1947. The aircraft featured a double-walled fuselage, with the pilot controlling the aircraft from within the inner shell. The circular gap between this and the outer, cylindrical shell provided the inlet for the ramjet.[1]
Testingedit
It could not take off unassisted (ramjets cannot produce thrust at zero airspeed and thus cannot move an aircraft from a standstill) and was therefore intended to be carried aloft by a parasite aircraft mother ship, such as the four-engined AAS 01A & -B German-origin designs[2] or the French-designed Sud-Est Languedoc four-engined airliners, and released at altitude. Following test flights of the SE.161 Languedoc/Leduc 0.10 composite, independent unpowered gliding tests began in October 1947. After three such flights, the first powered flight from atop an Languedoc mother ship was made on 21 April 1949 over Toulouse. Released in a shallow dive at an altitude of 3,050 m (10,010 ft), the engine was tested at half power for twelve minutes, propelling the aircraft to 680 km/h (420 mph).[1]
In subsequent tests, the 0.10 reached a top speed of Mach 0.85 and demonstrated the viability of the ramjet as an aviation powerplant, with a rate of climb of 40 m/s (7,900 ft/min) to 11,000 metres (36,000 ft), exceeding that of the best jet fighters of the time.[1]
Of the two 0.10s originally built, one was destroyed in a crash in 1951 and the other severely damaged in another crash the following year. Both pilots survived with serious injuries.[citation needed]
0.11/ 0.16/ Third 0.10edit
In addition to these, a third aircraft was built, designated 0.11 (0.16 in one[3] source). Generally similar to the 0.10, it featured a Turbomeca Marbore I turbojet on each wingtip, to provide better control during landings. This first flew on 8 February 1951, but was converted back to 0.10 standards (and thereafter referred to as Leduc 010 n°03)[3] a few months later after problems occurred, including misting of the pilot's windows, powerplant synchronization, and wing deflection caused by the turbojets.[1] The engines were replaced by inert mass balances. This aircraft flew 83 test flights,[3] and is preserved at Le Bourget.[citation needed]
Subsequent prototypesedit
The larger Leduc 0.21 flew from an air launch on 16 May 1953, and the swept wing supersonic Leduc 0.22 interceptor began testing on 26 December 1956 with a SNECMA Atar turbojet before the program was terminated in 1958.[1]
^ abcdefgKing, H.F. (1969). Milestones of the Air (McGraw-Hill ed.). New York: Jane's All the World's Aircraft Publishing Company. p. 113.
^Griehl, Manfred; Dressel, Joachim (1998). Heinkel He 177 - 277 - 274. Shrewsbury, UK: Airlife Publishing. pp. 207–209. ISBN1-85310-364-0.
^ abcLa saga des statoréacteurs VII. La longue marche vers un avion opérationnel (The story of ramjets VII. The long march towards an operational aeroplane) at xplanes.free.fr Accessed 24 December 2017
Referencesedit
Buttler, Tony & Delezenne, Jean-Louis (2012). X-Planes of Europe: Secret Research Aircraft from the Golden Age 1946-1974. Manchester, UK: Hikoki Publications. ISBN978-1-902-10921-3.
Carbonel, Jean-Christophe (2016). French Secret Projects. Vol. 1: Post War Fighters. Manchester, UK: Crecy Publishing. ISBN978-1-91080-900-6.
World Aircraft Information Files. London: Bright Star Publishing. File 900 Sheet 04–05.
leduc, research, aircraft, built, france, world, first, aircraft, powered, solely, ramjet, preserved, musée, espace, bourget, role, research, aircraft, national, origin, france, manufacturer, breguet, aviation, designer, rené, leduc, first, flight, october, 19. The Leduc 0 10 was a research aircraft built in France one of the world s first aircraft to fly powered solely by a ramjet 1 0 10 Leduc 0 10 preserved at the Musee de l Air et de l Espace at Le Bourget Role Research aircraft National origin France Manufacturer Breguet Aviation Designer Rene Leduc First flight 21 October 1947 Number built 3 Contents 1 Design and development 2 Testing 3 0 11 0 16 Third 0 10 4 Subsequent prototypes 5 Specifications 0 10 6 See also 7 Notes 8 References 9 External linksDesign and development editDesigned by Rene Leduc in 1938 it was built at the Breguet Aviation factory after a protracted semi secret construction phase kept at arm s length from German occupation authorities and was finally completed in 1947 The aircraft featured a double walled fuselage with the pilot controlling the aircraft from within the inner shell The circular gap between this and the outer cylindrical shell provided the inlet for the ramjet 1 Testing editIt could not take off unassisted ramjets cannot produce thrust at zero airspeed and thus cannot move an aircraft from a standstill and was therefore intended to be carried aloft by a parasite aircraft mother ship such as the four engined AAS 01A amp B German origin designs 2 or the French designed Sud Est Languedoc four engined airliners and released at altitude Following test flights of the SE 161 Languedoc Leduc 0 10 composite independent unpowered gliding tests began in October 1947 After three such flights the first powered flight from atop an Languedoc mother ship was made on 21 April 1949 over Toulouse Released in a shallow dive at an altitude of 3 050 m 10 010 ft the engine was tested at half power for twelve minutes propelling the aircraft to 680 km h 420 mph 1 In subsequent tests the 0 10 reached a top speed of Mach 0 85 and demonstrated the viability of the ramjet as an aviation powerplant with a rate of climb of 40 m s 7 900 ft min to 11 000 metres 36 000 ft exceeding that of the best jet fighters of the time 1 Of the two 0 10s originally built one was destroyed in a crash in 1951 and the other severely damaged in another crash the following year Both pilots survived with serious injuries citation needed 0 11 0 16 Third 0 10 editIn addition to these a third aircraft was built designated 0 11 0 16 in one 3 source Generally similar to the 0 10 it featured a Turbomeca Marbore I turbojet on each wingtip to provide better control during landings This first flew on 8 February 1951 but was converted back to 0 10 standards and thereafter referred to as Leduc 010 n 03 3 a few months later after problems occurred including misting of the pilot s windows powerplant synchronization and wing deflection caused by the turbojets 1 The engines were replaced by inert mass balances This aircraft flew 83 test flights 3 and is preserved at Le Bourget citation needed Subsequent prototypes editThe larger Leduc 0 21 flew from an air launch on 16 May 1953 and the swept wing supersonic Leduc 0 22 interceptor began testing on 26 December 1956 with a SNECMA Atar turbojet before the program was terminated in 1958 1 Specifications 0 10 editData from 1 General characteristicsCrew two Length 10 25 m 33 ft 7 in Wingspan 10 52 m 34 ft 6 in Wing area 16 0 m2 172 sq ft Empty weight 1 700 kg 3 740 lb Gross weight 2 800 kg 6 173 lb Powerplant 1 Leduc ramjet 15 7 kN 3 520 lbf thrust Performance Maximum speed 800 km h 500 mph 430 kn See also editRelated development Leduc 0 21 Leduc 0 22 Aircraft of comparable role configuration and era Miles M 52Notes edit a b c d e f g King H F 1969 Milestones of the Air McGraw Hill ed New York Jane s All the World s Aircraft Publishing Company p 113 Griehl Manfred Dressel Joachim 1998 Heinkel He 177 277 274 Shrewsbury UK Airlife Publishing pp 207 209 ISBN 1 85310 364 0 a b c La saga des statoreacteurs VII La longue marche vers un avion operationnel The story of ramjets VII The long march towards an operational aeroplane at xplanes free fr Accessed 24 December 2017References editButtler Tony amp Delezenne Jean Louis 2012 X Planes of Europe Secret Research Aircraft from the Golden Age 1946 1974 Manchester UK Hikoki Publications ISBN 978 1 902 10921 3 Carbonel Jean Christophe 2016 French Secret Projects Vol 1 Post War Fighters Manchester UK Crecy Publishing ISBN 978 1 91080 900 6 World Aircraft Information Files London Bright Star Publishing File 900 Sheet 04 05 External links edit nbsp Wikimedia Commons has media related to Leduc 010 http xplanes free fr stato stato 2 html test flight footage for Leduc 0 10 0 16 0 21 and 0 22 https www youtube com watch v CzUJrweHxso Retrieved from https en wikipedia org w index php title Leduc 0 10 amp oldid 1210555045, wikipedia, wiki, book, books, library,
