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Aviation History
1947
1947 - 1542.PDF
Miles AerovanT HE Aerovan is built by Miles Air-craft, Ltd., of Reading, Berks, and is described as a light freighter or feederline aircraft. The high tail boom con- struction allows easy access to the cabinthrough a large rear door. The cabin is close to the ground and the Aerovan,being fitted with a tricycle undercarriage, is always in level position. At a normalall-up weight of 5,400 lb, the take-off run in a 5 m.p.h. wind is 200 yards, andthe ceiling is 13,000 ft. The M.68, a unique development with detachable fuselage and4 Cirrus Minor engines has recently flown. Construction Power plane Span Length Normal gross weight Cruising ipeed Maximum speed ... Typical payloads and ranges Typical accommodation Composite Two Blackburn Cirrus Major III SOft 36ft 5,800 1b 112 m.p.h. at sea leve 127 m.p.h. at sea level 2.2-40 Ib. 400 miles 1,875 Ib, 800 miles* 9 passengers or cubic capacity of 530 cu ft •With auxiliary tanks Portsmouth AerocarT HERE are four models, the Majorand Minor, Senior and Junior. All models are equipped with a steerabletricycle undercarriage, retractable only on the Major and Minor, but the Seniorand Junior have simplified equipment to reduce initial cost. Two doors permitentry for passengers and the rear portion of the cabin hinges upwards to provideaccess for freight. The manufacturers, Portsmouth Aviation, Ltd., of The Air-port, Portsmouth, have constructed the prototype, which flew last June, in metaland wood, but production aircraft will be all-metal. Construction Power plant Span Length Normal gross weight Cruising speed Maximum speed Metal Two Blackburn Cirrus Major III 41ft 26ft 3ln. 3,950 Ib 136 m.p.h. at 65 per cent M.E.T.O. power at 5,000ft 164 m.p.h. at 5,000ft Miles MarathonT HE Marathon was built to theofficial Brabazon 5A requirements for a medium-sized airliner. It is a highwing monoplane fitted with a tricycle retractable undercarriage. Airscrew tur-bines may be installed without any major modifications, and two Armstrong-Siddeley Mamba engines will be installed in the first turbine-engined prototype,which is at present known as the M.69! The Marathon has been designed to meetI.C.A.O. safety requirements. British European Airways have thirty on order foruse on the Corporation's services. Typical piyload and range 1,000 Ib, 500 miles Til di 5yp pyTypical accommodation 5 passengers Construction Power plant Span Length Normal gross weight Cruising speed Maximum speed Typical payload and range Typical accommodation ... Metal * Four Gipsy Queen 71 65ft 52ft I in 16.500 Ib. 175 m.p.h. at 50 per cent M.E.T.O. power at 10,000ft 230 m.p.h. at 6,300ft 2,800 Ib. 900 miles 18 passengers Miles MerchantmanT HE Merchantman is a natural out-come from the Aerovan, with the same layout, but constructed entirely inmetal and with a greater capacity. Design of the fuselage is similar, but themain cabin has a capacity of 780 cu ft The tricycle undercarriage is fixed andthe nosewheel, as on the Aerovan, is connected to the rudder bar for steeringpurposes on the ground. The first proto- type Merchantman flew last month. Construction Power plant Span Length Normal gross weight Cruising speed Maximum speed Typical payload and range Typical accommodation ... Metal FourD.H. Gipsy Queen 30 66ft 61 n 42ft 91 n 13,000 Ib. 143 m.p.h. at 5,000ft (65 per cent T.O. power) 157 m.p.h. at 5,000ft Over 2 tons, 965 miles 20 passengers Percival MerganserT HE Merganser has been designed byPercival Aircraft, Ltd., of Luton, Beds, to provide a wide range of alterna-tive cabin arrangements for feeder ser- vices or charter work, or even as a privateaircraft. The main units of the retrac- table tricycle undercarriage are mountedat the engine nacelles. A direct develop- ment at present under construction willbe known as the Prince. That version will be powered by two Alvis Leonides,will have a span of 56 ft, and the length extended by 8 in. The normal weight willbe 9,700 lb and the maximum speed, 227 m.p.h. at 5,000 ft. Construction Power plant Span Length Normal gross weight Cruising speed Maximum speed Metal Two O.H.Gipsy Queen 51 47ft 9ln 38ft 11 In 6.7001b --• 160 m.p.h. at 68 per cent power at 5,000ft 193 m.p.h. at 5,000ft Scottish Aviation Prestwick Pioneer DESIGNED primarily for operation inareas where, due to geographical considerations and low populationdensity, airfield facilities are not available or are restricted, the Prestwick Pioneercan be supplied as a landplane . ski- plane or float seaplane. The manufac-turers, Scottish Aviation, Ltd., of Prestwick, Ayr, have recently flown thefirst prototype. The undercarriage is fixed. Leading edge all-metal full-spanslats, and all-metal flaps, with split flaps are provided. Typical payload and range 1,350 Ib. 800 milesTypical accommodation ... 6 passengers Construction Power plant Span Length Normal gross weight Cruising speed Maximum speed ... Maximum range ... Typical accommodation Metal D.H. Gipsy Queen 34 50ft 6in 34ft 91 n 3.650 Ib 110 m.p.h. at 5,000ft 126 m.p.h. at 5,000ft 500 miles Pilot and 3 passengers Percival Proctor VL ATEST product of the Proctor seriesis the Mk. V. The aircraft is a fixed undercarriage four-seater cabin mono-plane, of wooden construction. Earlier aircraft in the series were used duringthe war for communication purposes by the Services, and they are being usedextensively by charter companies in this country and abroad. There have beenrecent successful tests with a Proctor on floats to be known as the Mk. VI. Construction Power plant Span Length Normal gross weight Cruising speed Maximum speed Typical payloads and ranges Typical accommodation Wood D.H. Gipsy Queen Six II 39ft 6in 28ft 2in 3.5001b 135 m.p.h. at 68 per cent M.E.T.O. power »t i«» level 157 m.p.h. at sea level 350 Ib. 800 miles 729 Ib, 250 miles Pilot and 3 passengers
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