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Aviation History
1934
1934 - 0844.PDF
846 FLIGHT. AUGUST 16, 1934. FOREIGN AIRCRAFT 1934 BELLANCA "SENIOR SKYROCKET" Cantilever " Load Compensator " Undercarriage and Other Refinements Give Considerably . ..... Increased Performance OF unmistakable Bellanca design, the r :••r"" Senior Skyrocket " for 1934 is • a six-seater monoplane. T'le wings areof two-spar wooden construction. Trail- ing edge flaps are fitted, and tLe bracingstruts form supplementary lifting sur- laces at high angles of attack. Plywoodcovering is used for the leading edge of the wing, preventing the fabric frombecoming depressed between the ribs, and maintaining the full lift character-istics. In each wing is a 100-gallon . welded aluminium fuel tank resting onMt pads. The "slot balanced" aile- rons, of high aspect ratio, are effective \after the stalling point has been reached. • The cabin is 124 in. long, 45.5 in. high jand 57.5 in. wide. A baggage compart : ment behind the rear seats, accessible ;from inside and outside, has a capacity i of 15 cu. ft. Individually operatedventilation, adjustable rear windows, and cabin heater are standard equipment.By means of a duct beneath the cabin floor fresh air is taken from a point on the front wing strut and supplied to thecabin. The amount of air to each seat is controlled by butter- fly valves in the floor, and the two main air ducts terminatein large outlets in the rear cabin wall, so that if the individual ducts are in operation or not a continuous supply of freshair enters the cabin at all times during flight. The heating arrangements are carried out through the same system, thepilot controlling the mixture of the heated and the fresh cold air by means of a master valve. Heat is supplied by freshair passing through a metal cuff enclosure or " stove " on two portions of the engine exhaust manifold.A new type of cantilever undercarriage is used. In this the oleo struts are mounted in the lower portion of the fuselage BELLANCA A SIX-SEATER: The Bellanca "Senior Skyrocket" cabin monoplane. in "crosswise" or opposed fashion, transmitting loads fromeach "arm " of the undercarriage to the opposite side of the fuselage. A Pratt and Whitney S.i D.i " Wasp" rated at 525 h.p.at 7,000 ft. is the standard power plant. This engine is pro- vided with an Eclipse direct drive electric starter and a handcrank. The cowling is of the full N.A.C.A. type firmly attached by means of a compression system wherein felt padsin individual sockets are made to fit tightly over the rocker box heads by means of a master screw tightening device. Thecowling behind the engine is in four segments. An oil tank with a capacity of 14 gallons is carried beneath the enginecowling. The '' Senior Skyrocket'' is available in '' Standard '' and" De Luxe" form, both being powered by the Pratt and Whitney " Wasp " S.i D.i. The two models differ mainly inmatters of equipment, the " De Luxe " type being custom- equipped and having a specially arranged cabin interior,additional instruments and more latitude in the choice of colours and upholstery materials. Each model may be con-verted into a seaplane. SENIOR SKYROCKET' 1934 BELLANCA "SENIOR SKYROCKET" (" DE LUXE " MODEL) Pratt & Whitney "Wasp" S.I D.I (525 h.p. at 7,000 ft.) DIMENSIONSSpan 50 ft. fi in. (1:>,4 m) Length ... 27ft. 11 in. (8,6 m)HHight 8 ft. 6 in. (2,6 m) Wing area 311 sq. ft. (28,9 m2) WEIGHTSWeight empty Gross weight ..Wing loading Power loading PERFORMANCETop speed at 7,000 ft. (2 131 m) Cruising speed at 60 per cent, powerService ceiling Range 3,300 1b. (/ 496,S kg)5,600 lb. (2 54(1 kf) 181b./sq. ft.(87,0ftg/m!)10.fi lb./h.p. 4,8 k'jhp) 185 m.p.h. 298ktnjhT)15i)m.p.h. (254 kmjhr) 25,000 it. (7 620 m)910 miles 1 464 km) to 1,280 miles (2 Odd km) 113,R2 Latest French Reconnaissance Machine to Go Into Service A LARGE batch of Mureaux ii3,R2 reconnaissance machinesis at present being built for the re-equipment oi certain units of the French " Armee de I'Air." Although classed as a iecounaissance aircraft, and bearing the suffix " K2 " to its title (which denotes that the machine is a two-seater and is used for reconnaissance) the type is suitable for artillery observation, day and night fighting and light bombing duties. The machine is a high wing semi-cantilever monoplane, the wing covering l>eing of sheet duralumin riveted to the spars and stringers. A detachable leading edge is fitted to the wing to facilitate inspection. Unbalanced ailerons of high aspect ratio are used. A number of transverse duralumin bulkheads joined by four longerons of " U " section form the main fuselage structure. Strips of duralumin sheeting are placed longitudinally along the sides of the fuselage and laterally across the domed top and bottom. The tail unit is a normal monoplane structure employing an adjustable tail plane, and the undercarriage is a wide split axle type with Oleo-pneumatic shock absorbers and differentially controlled wheel brakes. ;
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