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Aviation History
1950
1950 - 1693.PDF
7 September, 1950 Saunders-Roe Duchess Saunders-Roe Princess Short Solent 279 Short Sealand O cater for the diverae needs of privateA owner, airline, or charter operator, the twin-engined Short Sealand amphibianis ideally suited. Since being granted a full C. of A. the Sealand has evoked wide-spread interest in many parts of the world. At a normal gross weight of 9,1001b ithas a cruising speed of 170 m.p.h. at 7,250ft. A maximum wing loading ofonly 25.81b/sq ft aids in conferring good take-off characteristics—distance to 50ftfrom water being 1,040yd, and from land, 720yd. Short Solent 4 THIS latest version of a popular andreliable flying-boat design is ih servicewith Tasman Airways and has a notably good performance. Carrying 45 passengers(in unusual comfort) with their baggage and 7,2781b of mail freight, it will fly 1,330miles at 230 m.p.h. Four Bristol Hercules 733 engines are fitted, and the maximumcruising speed is 253 m.p.h. Take-off to 50ft is achieved in 1,700yd and theclimb to 10,000ft takes 12 min. Span, 112ft lOin; gross weight, 18.9801b; ma*,wing loading, 46.751b/*q ft. Vickers-Armstrong's Viscount DURING its European demonstra-tion tour, its tropical trials at Khar- toum, and—most recently—a period ofactual airline service on B.E.A.'s London- Paris run, the prototype Viscount per-formed so well that no misgivings may be felt concerning the merits of turboproptravel, exemplified here by the Vickers- Rolls-Royce combination. The Viscountproduction version (see drawing on pages 282-28$) has more powerful Darts, and itsoverall "idimensions are slightly greater. Internal \rrangements differ according totiustoflier's requirements; B.E.A.'s Vis- count 701, for example, will carry 40passengers in the well-fitted, fully pressur- ized cabin. An alternative version has 53seats. Cruising at 25,000 ft at 316 m.p.h. the range is 950 miles (plus 230-milediversion and 45 min stand-off). Cabin quiet and lack of vibration are qualitieswhich require no further comment. Span, 94ft; gross weight, 50,0001b. Vickers-Armstrong V.C.3 FROM the well-tried Viking, the VickersV.C.3 design has been evolved for use on secondary routes. Carrying 27 passen-gers, the range is over 1,500 miles. Like the military Varsity crew-trainer, theV.C.3 has a nosewheel undercarriage. Span, 95ft 6in; gross weight, 37,0001b. Westland-Sikorsky S-51 OEVERAL civil applications have beenO found for this Leonides-powered heli- copter, in addition to its successful militaryadoption as the Dragonfly. Notable instances are the crop-spraying work ofPest Control Ltd., and B.E.A.'s pioneer passenger service between Cardiff andLiverpool.
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