Hello LP
Good to see someone else asking the same questions that bother me
I presented this question myself some time ago. I asked here on tech log and on the engineers and technicians pages, and no one can give you a definitive answer.
Ok.. selecting start switch to CONT energizes the EEC, but what does that have to do with the SPD LIM? Speed limit bars are computed in the SMYD with info from the ADC and weight info from the FMC.
My best guess is that the EEC relays signals from many instruments, like the DEU, so that when it looses pwr the signals are cut.
In the same way.. why are the vertical mcp-modes u/s in this situation? Those go from the FCC via the FMC to give you flight director commands.
Please, if anyone gives you a verifiable and good answer please let me know.
