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Aviation History
1955
1955 - 0416.PDF
Though showing the Bell XV-3 convert/plane in something approaching plan view, the picture above—by virtue of the cast shadow—also illus- trates features of the side elevation. On the right is a de Havilland Canada Otter, one of the first of 90 being supplied to the U.S. Army under the designation U-l. This particular aircraft is painted in Arctic colours, i.e., with red wing tips and tail, for identication against snow. AIRCRAFT INTELLIGENCE Great Britain Vickers-Armstrongs Valiant. If serialnumbers are any guide, at least a dozen Vickers Valiant B.I bombers have alreadybeen completed. These aircraft are flown "light" out of Brooklands to the maker'smain airfield at Wisley. - U.S.A. Boeing B-52. It is officially announced bythe U.S.A.F. that the sole armament of the Boeing B-52 eight-jet bomber is four 0.5inguns (not 20 mm guns, as has been stated). These are mounted in a barbette in theextreme tail and, although having provision for automatic ranging and firing, are"monitored" by a gunner seated in a self- contained compartment immediately be-hind the rudder. The entire installation is appropriately described by Arma—whichcompany is primarily responsible—as a "defence system." Sikorsky Transport Helicopter. A design-study has been made by Sikorsky for a 50-passenger civil-transport helicopter,powered with two turboprops, carrying a payload of 11,0001b and having a grossweight of 33,950 lb. Cruising speed is estimated to be 160 m.p.h. and range185 miles. A drawing shows the machine to resemble the S-56 in general layout butto have a longer fuselage; a "conservatory" nose, with the pilots' cockpit above; andwheels retracting into failings beneath the nacelles. There are two tail rotors, set oneon each end of the high-set tailplane. The single main rotor has five blades. Ryan V.T.O. Fighter. Possibly desig-nated XF-109, but known also by the maker's type number 69, a vertical take-offfighter, now under construction by the Ryan Aeronautical Co., will be powered bya single Rolls-Royce Avon RA.28 of 10,000 lb thrust. The Avon was selected In common with the North American Super Sabre, France's Marcel Dassault Super Mystere (otherwise known as Mystere IVBJ) has a "flattened" intake. because of its high thrust/weight ratio.Gross weight should be about 8,000 lb. France S.N.C.A.S.E. Alouette II. This newfive-seater helicopter (illustrated on this page last week) made its first flight onMarch 12th at Buc, with, it is said, entirely satisfactory results. A production versionof the Alouette I, it is powered by a Turbo- meca Artouste II gas turbine of 360 h.p.,driving a single rotor. All-up weight is 2,980 lb and estimated performance figuresare: ceiling 14,760ft, rate of climb l,970ft/min, cruising speed 106 m.p.h.,range 323 miles. The first five Alouette I Is of a production order from the FrenchGovernment are due for delivery between October and December this year. Dassault Super Mystere. After fifteenhours' test-flying by the manufacturers, this notable French intercepter—a newview of which appears on this page—should now have been handed over to the FrenchFlight Test Centre. While awaiting official confirmation of a production order, Das-sault have been making provision for build- ing the type in series for the French AirForce. The version concerned will prob- ably be the IVB2, powered with aS.N.E.C.M.A. Atar 101G turbojet with afterburner. The possibility nevertheless exists that the order will also entail produc-tion of the IVB1, fitted with a Hispano- Suiza-built Rolls-Royce Avon, likewisehaving an afterburner. A.C.13 Helicopter. Under the designa-tion A.C.13, but also known by the type number N.1750, a new helicopter is beingbuilt by the French S.N.C.A.N. concern under licence from Aerotechnica Cantinieau,of Spain. Though equipped with a Turbo- meca Artouste I, of 280 h.p., it employsless than 200 h.p. "owing to the diameter of the rotor." The jet-pipe is articulated andby means of a pedal control the jet is used to compensate torque and give directionalcontrol. Numerous test flights have been made since January. Single-seat and three-seat versions are planned, the former having a gross weight of 1,540 lb and the latterweighing 1,900 lb. Maximum speed is 93 m.p.h. and hovering ceiling 14,000ft. Spain HA-200 (XE-14). Designed by WillyMesserschmitt for La Hispano Aviaci6n S.A., of Seville, the HA-200 (militarydesignation XE-14) is a tandem two-seater- powered with two Turbomeca Marboreturbojets in the lower fuselage. A nose intake, wing-tip tanks and a single fin andrudder are features. Span is 34.16ft, weight empty 3,196 lb, gross weight 7,050 lb,maximum speed 440 m.p.h., service ceiling 29,500ft, and range 1,050 miles.
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