...what is more interesting is how the FMC uses the time for ETO? boeing's FMC always round-down the time to the nearest minute i.e. 22:34.9 =>22:34. 'Apparently', it isnt so on the airbuses (can someone confirm!).
The same goes for some of some of our older 757 FMC's, but the more recent aircraft always give the right estimate (although manually adjusted).
I find this interesting because I always believe the time to be i.e. 08:11 until it's 08:12, it's not "considered" to be 08:12 when it's really 08:11 and 45 seconds.
When I compared the clock display on the old planes to the FMC time display I found the input to be "staggered" about 35 seconds to fool the FMC into interpolation of time. Totally wrong approach, if you ask me, but like I said I'ts been corrected on the newer planes. The older probably was designed by computer geeks..
