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Aviation History
1962
1962 - 1655.PDF
FLIGHT International, 30 August 1962 it can land in less than 70yd. By contrast, maximum cruising speed is 148 m.p.h., and initial rate of climb no less than l,630ft/min. B.206 After a year's intensive flying, the 206X prototype was joined in the test programme on August 12, when the type ">06Y made its first flight. The Y differs from the X in a number of important re spects, and is closely representative of eventual production aircraft. Gross weight has risen to 7,0001b, and an increase in cabin length makes the aircraft even more versatile in its range of interior layouts and operating roles. Power has been in creased by fitting two 310 h.p. Rolls-Royce Continental GIO-470As, in place of un- whole structure is moulded in glass-fibre. This results in important advantages, in cluding excellent resistance to weather or damage, very low production and repair cost, good surface finish and accuracy, and extreme simplicity. In introducing this new form of construction Beagle have allowed generous factors of safety and have conducted an exceptionally thorough test programme to ensure complete in tegrity of the whole airframe. All fuel is housed in integral wing tanks well out board of the engines, and the undercar riage and flaps are operated hydraulically. The first 218 was completed only a matter of days ago, but should appear at the forthcoming SBAC show. It is expected to form the basis of a family of single- teagle Z06Y geared 260 h.p. units, and wing span has been extended from 38ft to 43ft to give an improved climb and airfield perfor mance. Single tanks in each wing with a total capacity of 200gal replace the earlier arrangement of two cells per side. Tail- plane area is increased and longitudinal trim is now achieved through an elevator tab. The 206Y incorporates refinements in cockpit layout, air-conditioning system, entry stairs, and other details. M.117 Although no decision has yet been taken to proceed with construction of a prototype, the M.I 17 series is part of the Miles group of Beagle types. With basically the same airframe as the 218, it would be a three-seater with 120 h.p. R;R Continental engine, or four-seater with 145 h.p. engine, both with fixed undercarriage. Later, 175 h.p. or 205 h.p. versions with retractable undercarriage might follow. M.218 Derived from an original pro ject by F. G. Miles Ltd (now part of oeagk), the 218 is a very attractive and tully equipped four-seater, powered in rtandard form by two 145 h.p. Rolls-Royce Continental O-300 Spec 8 six-cylinder engines, driving constant-speed and feathering Hartzell propellers. The most unusual feature of the aircraft is that, apart from a basic T-shaped light-alloy :rame bearing the major loads, nearly the and twin-engined machines, as was ex plained in last week's issue. WA.116 Development flying by a num ber of these simple autogyros has been under way for some months, and the machine has now reached a sufficiently practical stage for various applications to be considered. Delivery of three to the Army for evaluation purposes is expected shortly. Powerplant is a modified Mc- Culloch flat-four two-stroke of 72 b.h.p. driving a fixed-pitch propeller. The rotor is spun up with the engine at low r.p.m., and as the revs are increased for take-off the drive to the rotor is progressively dis engaged. Minimum flying speed is about 12kt. At a gross weight of 5801b, the use ful load is nearly 3001b. Beagk'M.218
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