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Aviation History
1995
1995 - 2829.PDF
NBAA REPORT ProLine 21 gives Raytheon jet avionics first ROCKWELL-COLLINS' Pro Line 21 integrated avion ics, launched on the Raytheon Premier I, is the first business-air craft suite to have large liquid- crystal displays (LCDs). The Premier I has two 200 x 250mm pilot-side displays as stan dard, with options for third and fourth displays. Collins says that the Pro Line 21 is designed "...to carry cus tomers through the transition [to a satellite-based air-traffic-man agement system) and into the 21st century". The system is based on the architecture of the present Pro Line 4 integrated avionics, but introduces new technologies. The large LCDs allow all flight information to be presented on one display. The Premier 21 pri mary-flight display will have alti tude, airspeed and vertical-speed "dials" superimposed on an extended horizon line providing peripheral attitude cues, Collins says. The multi-function display- will be able to present maps, charts, approach plates, manual pages, external-view video, engine instruments and other formats. The primary navigation system on the Premier I will be the AvSat 3000 global-positioning/flight- management system. This will interface with the GPS-4000 sen sor, Pro Line radios, fibre-optic- gyro attitude-and heading-reference system and a new dual-channel, rail-passive, autopilot. Growth options include the APR-4000 approach sensor, engine-indication and crew-alert ing system, and central-mainte nance computer. • Variants of the Premier I, the Premier 11 and the Premier HI are already in the pipeline Premier I leads planned Raytheon light-jet family RAYTHEON AIRCRAFT'S Premier I, launched at die NBAA, is the first in a family of light business-jets. Company presi dent Roy Norris says that a Premier II "...is already on the drawing board" and will be fol lowed by a Premier III. The S3.9 million, six-passenger, Premier I is positioned between the Cessna Citationjet and Citation Bravo, but has a larger cabin and faster cruise. The aircraft, powered by two lOkN (2,3O01b)-thrust Williams- Rolls FJ44-2As, has an instalment flight-rules range of 2,800km (l,500nm) with four passengers, 460kt (850km/h) maximum cruise and 41,000ft (12,500m) operating altitude. Raytheon has orders for 32 Premier Is. The first flight is sched uled for third quarter of 1997 and US certification and first deliveries for the end of 1998. Production of 40 aircraft a year is planned. Norris says that the automated fibre-placement technology used to produce die composite fuselage, as well as offering increased inter nal volume and reduced weight, will enable the Premier to be stretched, or grown, earlier. Manufacture of die high-aspect- ratio swept wing is also highly automated, with machined spars and ribs and auto-riveted skins. Norris says that die fibre-place ment technology "...is applicable to all aircraft. [The Premier I] is the first. We will use it on all Raytheon aircraft in die future." The compa ny, formed in September 1994, by the merger of Beech Aircraft and Raytheon Corporate Jets, plans to Premier's engines meet performance targets WILLIAMS ROLLS-Royce's FJ44-2 engine for the Raytheon Premier I and Sino Swearingen SJ30-2 light business jets is meeting its thrust and specific- fuel-consumption targets in ground tests, says company founder Dr Sam Williams. The lOkN engine's third-genera tion, integrally bladed, "wide- sweep fan" is achieving unprecedented efficiency, he says, and cruise performance at Mach 0,8 and 41,000ft (12,500m) is "world-beating". The FJ44-2 uses the same core and two-stage low-pres sure (LP) turbine as the 8kN (1,8001b) FJ44-1 powering the Cessna Citationjet. The core uses a centrifugal high-pres sure (HP) compressor and uncooled HP turbine. The LP compressor has three axial revamp all its products, he says. "We intend to remain die largest, broadest-based, company in the business, with aircraft rang ing from high-end piston singles to super-mid-size business jets," Norris says. An improved Hawker 1000 mid-sized jet is under devel opment, he acknowledges. Based on experience with the Rockwell- Collins Pro Line 21 avionics in the Premier I, Raytheon plans to install large liquid-crystal cockpit-displays in the Hawker 800, he adds. Norris does not expect to com pete with the King Air twin turbo prop or Beechjet light jet with die Premier I. The Beechjet is expect ed to remain in production beyond the year 2000, says Raytheon Aircraft chairman Art Wegner, and improvements are planned. • See feature, P42 stages, compared with one in the -1, and a forced exhaust- mixer has been added to increase efficiency. The new engine has a single- channel Woodward Governor electronic control-unit, with hydromechanical back-up. • 20 FLIGHT INTERNATIONAL 4 - 10 October 1995
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