British Aerospace Asset Management-Jets (AMJ) is developing a cockpit upgrade for early-build BAe146s, based around the introduction of an AlliedSignal satellite-based navigation system. The upgrade will allow operators of the BAe leasing unit's 146s, particularly in Europe and Australia, to cope with the progressive worldwide phase-out of the VLF Omega network of ground stations.
A total of 160 of the four-engined regional jets, including 90 aircraft in the AMJ portfolio, was delivered with electromechanical flight decks. The AMJ-funded design and development programme is aimed at certificating AlliedSignal's GNS-XLS navigation system for use on these aircraft, with certification and initial deliveries planned for the first quarter of 1997.
BAe says that the programme "-has been timed to ensure compliance with the new European Basic Area Navigation rules", which come into effect in January 1998. The GNS-XLS does not, however, provide a precision-approach capability.
It is understood that Australian 146 operators also have an urgent requirement for satellite-based navigation, with the imminent phase-out of the Omega network.
BAe adds that the programme should result in a modification kit, consisting of the GNS-XLS, global-positioning-system antenna, scanning distance, measuring equipment and possibly single or dual true-airspeed computers. The installation kit would be supplied by 146 design authority Avro International Aerospace. The hardware will be up-graded for the proposed Precision Area Navigation rules, due to take effect in 2005.
BAe says that the cost of the upgrade to operators will be "favourable", as it has agreed bulk purchases with equipment suppliers.
Source: Flight International
