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Aviation History
1951
1951 - 1231.PDF
762 FLIGHT, 29 June 1951 REPORT FROM PARIS . . . Military Aircraft Marcel Dassault 450 Ouragan.—The particular exampleof the M.D.450 Ouragan displayed bears the inscription "R No. 8," signifying that its function is reconnaissance and that it is theeighth Ouragan of the pre-production batch of fifteen. The arma- ment is two 20 mm Hispano-Suiza guns, two having been sacrificedto permit installation of the cameras. In the bottom fuselage skin are ports for two vertical cameras, and there is a third port, foroblique photography, in the starboard side of the fuselage. Wing- tip tanks (with navigation lights) and underwing tanks are installed.Though the first Ouragan prototype is said to have attained a speed of 613 m.p.h. at 47,000ft only two months after its firstflight (made on February 28th, 1949), the placard speed of the production version is 600 m.p.b. Other data are: span, 38ft 7in;length, 34ft 9in; wing area, 269 sqft; empty weight, 7,246 Ib; gross weight, 11,684 lb; initial rate of climb, 7,8ooft/min; time ofclimb to 39,000ft, 9 min; duration, 1 hr 10 min; take-off distance to 5Oit, 985 yd; landing run from 50ft, 820 yd. The power unit isa standard Hispano-Suiza Nene of 5,000 lb thrust, and the ejector seat is a Martin-Baker.Marcel Dassault 452 Mystere.—This Ouragan development has been flying since early this year but has been little publicized.It retains the frontal intake of the Ouragan but has swept-back wings and tail surfaces. For the present a Nene is fitted, but a Tayor Atar is intended. Big things are expected of the Mystere when it is demonstrated at Le Bourget on July 1st.Marcel Dassault Aladin.—Following Sabre practice, this single-seat "all-weather" version of the Mystere has nose-mounted radar, necessitating lateral air intakes. "User require- ments" have not yet been finally specified and completion of theAladin is therefore delayed. Marcel Dassault Harmattan.—This aircraft is a two-seater"all-weather" version of the Aladin. S.N.CJV.S.E. Mistral.—Under de Havilland licence the S.E.factory has for some time been building the Goblin-powered Vampire, and lately, to take advantage of the Hispano-built Nene,has developed the Mistral. Innovations are the Boulton Paul- developed intakes and S.N.C.A.S.O. ejector seat. Several bag-type fuel tanks have been disposed in the wing, and there is an extra rigid tank in the nacelle. By comparison with the Vampire 5performance has been greatly improved. The maximum sea-level speed, for example, is 578 m.p.h., and the height attained in7 min 38 sec is 32,800ft. Corresponding figures for the Vampire 5 are 528 m.p.h. and 21,325ft. Loaded weight has increased by405 lb to 10,000 lb and instruments and materials have been changed to conform to French standards.S.N.C.A.S.O. Espadon 6021.—When the S.O.6020 Espadon Nene-powered fighter appeared in the previous Salon there wasgeneral criticism of the underslung air intake; so it is not surprising that this has been superseded, in the S.O.6021, by lateral flushintakes, positioned aft of the wheel wells in the fuselage sides. An S.N.C.A.S.O. ejector se3t is fitted and standard armamentenvisaged is four 30 mm guns, though other combinations, includ- ing six 20 mm weapons, have been tested. Manufacturer's figures are: span, 34ft 9in; length, 49ft 2in;wing area, 291 sqft; empty weight, 10,450 lb; gross weight, 15,200 lb; max. speed at sea level, 625 m.p.h.; climb to 32,800ft,9i min; service ceiling, 42,650ft; duration, ij hr. S.O.6025 and 6026.—These two Espadon developmentsresemble the 6021 but are fitted with an auxiliary rocket in a long duct beneath the fuselage. It is claimed that—increased weightnotwithstanding—speed and climb performance has benefited "considerably." (Left) The S.I.P.A. S.200 light communications aircraft, trainer or tourer, weighs 1,390 Ib loaded, and is estimated to hove a take-off run of only 200 yd. Maximum sea-level speed should be 267 m.p.h. (Right) A particularly trim-looking trainer is the Piaggio P.1482/3-seoter. The maximum speed on 190 h.p. is 147 m.p.h.; take-off run is 175 yd. With two Turbomeca Palas turbojets, the Fouga CM. 82R Lutin, seen below, should have an initial rate of climb of A,300ft I min. S.N.CA.S.E. Grognards.—Two versions of this twin-jetaircraft have already been flown and a third is in prospect. The first, designated S.E.2410, made its initial flight on April 30thlast year. This is a single-seater and, in common with the second variant (S.E:24i5, Grognard II), has two Hispano Nene enginesstaggered within the deep fuselage and fed by an intake behind the cockpit. Wings and tail are sharply swept, but on the 2415 thedegree of sweepback has been reduced to improve landing characteristics and manoeuvrability at altitude. The 2415 differsfurther from the 2410 in having a longer nose, to house radar, and a second crew member. Provision is made for a braking parachutein the tail. The Grognard II is providing experience in preparation for the third variant (S.E.2420, Grognard III), intended primarilyfor ground attack. Data for the Grognard II are: span, 50ft yia; length, 54ft 9in;height, 19ft; wing area, 469 sqft; gross weight, 36,100 lb; max. speed, 595 m.p.h.Arsenal VG-90.—The team of Vernisse and Galtier, active at the Arsenal de I'Aeronautique, is known for originality of design,and the the VG-90 naval strike-fighter, built in the light of experi- ence with the VG-70 Jumo-powered research aircraft displayed inthe 1946 Salon, is a striking-looking machine, of shoulder-wing layout. The first prototype was destroyed in May of last year, butresults were described as very promising and work went ahead on a second specimen, now ready to fly. Unlike its precursor, this isof all-metal construction, and the ailerons have a Fairey Hydro- Booster power-control system. Certain details of the undercarriagehave been changed; the rudder is in two sections; and Normalair equipment is installed. The armament is three 30 mm guns, andprovision is made for bombs or R.P.s beneath the wings. In the third example the rear fuselage is being adapted to house a HispanoTay, a Nene with afterburner or a S.N.E.C.M.A. Atar. There is also talk of Arsenal ramjets being mounted experimentally at thewing-tips. The all-up weight is about 18,000 lb. Arsenal Intercepter.—Work is in hand on an Arsenal inter -cepter fighter, the final configuration of which is dependent upon the results of trials with two prototypes of the VG-90 naval fighter(Nene) and of a scale-model glider now on test. This glider, of wooden construction, has heavily swept wing and tail surfaces,and is towed behind a Siebel 204 at speeds up to 220 m.p.h. Breguet 960 Vultur.—A model displays the striking lines ofthis carrier-borne reconnaissance and strike aircraft, powered with an Armstrong Siddeley Mamba turboprop and Hispano Neneturbojet. Details of military equipment are withheld, but a model displayed in the Salon two years ago indicated provision for
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