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INS Vendors  
User currently offlineGopal From United States of America, joined Jun 1999, 113 posts, RR: 0
Posted (9 years 3 months 2 weeks 2 days 9 hours ago) and read 1315 times:

Which company provides INS systems for Boeing airliners such as 777 and 747 ? I was reading that the modern INS systems have sophisticated electronic logic built into them. The heart of this logic is usually a microprocessor/microcontroller of the same capability at a Intel 80486 processor. Is there an airliner "BUS" on which hooks the INS with other logical components to the flight computer ? Many thanks for the answers

1 replies: All unread, jump to last
 
User currently offlineB747FE From Hong Kong, joined Jun 2004, 230 posts, RR: 4
Reply 1, posted (9 years 3 months 2 weeks 1 day 11 hours ago) and read 969 times:

Quoting Gopal (Thread starter):
Which company provides INS systems for Boeing airliners such as 777 and 747 ?

The INS for the 747 classic are manufactured by Marconi, Litton (LTN-92), Delco Electronics (Carrousel IV).
744 and 777 are most probably equipped with IRS.
Honeywell and Sextant Avionique are other vendors for those systems.

Quoting Gopal (Thread starter):
Is there an airliner "BUS" on which hooks the INS with other logical components to the flight computer ?

Yes, the FMS, using ADIRU's (Air Data + Inertial Reference Unit), GPS, VOR and DME receivers, is integrated to send and receive signals/imputs to other aircraft systems, such as DADC, weather radar, GPWS, FADEC, FDR.
This is accomplished through avionics communication buses.

Regards,
B747FE.



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