From: firstname.lastname@example.org (Sethu R Rathinam) Organization: INS Information Services, Des Moines, Iowa, USA Date: 21 Jun 95 02:56:57 References: 1
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In article <airliners.1995.762@ohare.Chicago.COM> email@example.com wrote: :Can anyone describe the suite of instruments carried by the Boeing 777, or :point to an article somewhere that names and describes them? I'm :particularly interested in any "Flight Director" or autopilot instruments :that have technical advances. AIRLINE AVIONICS magazine had a series of articles (around March of this year) on the Boeing 777 Avionics. The Autopilot Flight Director System (AFDS) on the 777 includes the backdrive logic that moves the column and wheel when the autopilot is engaged. The backdrive also provides full time bank angle protection on command from the primary flight (FBW) computers. The Autopilot Flight Director Computers are now data loadable on the airplane (on ground) - which mean you can update the software withthe boxes in place. The Mode Control Panel has LCD displays (unlike the mechanical ones on the 757/767/747-400). The AFDCs and MCP have more self monitoring than there used to be the case in the earlier generation. The backdrive computers are part of the AFDC boxes. The AFDCs, like many other (newer) computer systems on the airplane, support the ARINC 629 interfaces because of the airplane's avionics bus architecture (in addition to ARINC 429 busses). -- Sethu R Rathinam firstname.lastname@example.org Avionics Systems/Rockwell - Collins Avionics.