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Aviation History
1985
1985 - 0029.PDF
3,000- 2,000- 1,000- Long range cruise (Mach 0.70) 45 min reserve ISA Payload range X Cruise (Mach 0.80) V ^-^45 min reserve ISA \ \ \ \ •% ^Long range tank M=0.70 1,000 1 1,500 I 2,000 Long range tank I I 2,500 3,000 3,500 Range (n.m.) The second prototype, above, was painted in a more flattering blue and white colour scheme for display at the 1984 NBAA show. Its supercritical wing develops its optimum lift/drag ratio of 15:1 at Mach 0-70. acrylic/polycarbonate sandwich construc tion for maximum strength and scratch resistance. Cockpit and cabin Behind the windshield is a digital cock pit with better ergonomics than that of the Westwinds. It incorporates a panel layout which is fast becoming the norm for business jets—a five-tube CRT arrange ment, this time by Collins. There is also a flight management system by either Global or Collins. The fuel management system gives the pilots a continuous read-out of gross weight which can be related to angle of attack to derive an optimum long-range cruise speed. The latest Garrett AiResearch electronically controlled pressurisation system helps to make life simpler for the pilots and more comfortable for the passengers. Setting the elevation of the destination airfield is about the only task to be performed. The driving force behind the fuselage design was the necessity for more internal volume than was available in the West- winds, to provide adequate comfort for five or six passengers on transcontinental US flights. This led to the abandon ment of the Westwind's mid-wing in favour of a one-piece low wing which lies beneath the fuselage without intruding into it. A 3in higher cabin ceiling and a 5in-deep aisle are introduced to provide a continuous headroom of 67in throughout the passenger cabin, which is 20in longer than that of the Westwinds. Galley and toilet facilities will also be of a standard appropriate to the aircraft's long en durance. Israel Aircraft Industries was not tempted to increase cabin width by adop ting a fuselage of circular cross-section. The manufacturer decided to retain an FLIGHT International, 5 January 1985 27
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