View Full Version : Classics FMC
Harry Cane
4th May 2007, 08:50
Hi guys
Have a question regarding classics 73s.
What Air Data Computer, under normal conditions, feeds speed information to the FMC (single Fmc Configuration).
Thanks.
H.C
CaptainSandL
6th May 2007, 08:36
Both!
The FMC gets speed input from both ADCs and both IRSs. However the primary/preferred (variation in Boeing terminology) sources are the left ADC & IRS.
S&L (http://www.b737.org.uk/navigation.htm)
Harry Cane
7th May 2007, 11:02
Thanks for your answer Capt. Sandler, and here’s another related question.
How the Fmc will respond in case of slight difference in speed information between ADC 1 and ADC 2 due to a partially clogged pitot system affecting the preferred ADC (ADC 1).