Date: 23 Apr 97 02:58:17 From: "john r." <email@example.com> Organization: silence References: 1 2 Followups: 1
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In article <airliners.1997.984@ohare.Chicago.COM>, "C. Marin Faure" >The 747 has had a straight staircase for many years now, well before the >advent of the -400. The -400 features a 2-man cockpit, and utilizes LCD >flat-panel displays. The 747-400 has CRT displays. They are strange tubes wich use both raster and stroke, giving a very good presentation but are not the most reliable bits of the plane. They often overheat and go mono, which takes less power, or blank for no apparent reason, usualy on power changes when on the ground. Either fault is often cleared by powering down for 30 seconds but we used to change a lot of them. In the last 3 years they have become more relaible. I took the cover off a dead one once to have a peek inside, it was full of fine dust and made rather a mess of the flight deck. The 777 LCD displays are adequate but not as sharp as the CRT's on the 747-400, however they are much more reliable and I have yet to change one. >The 747-400 and 777 flight decks are quite similar; >however, the 777 has a more advanced fault-reporting and >built-in-test-equipment (BITE) system. Its very good and even recomends rectification action and reset procedures (I work on the assumption that all messages are false unless proved otherwise). If they close the loop and it carry out its own tasks I quess many of us will be out of a job ! Keep them flying, -- john r.