Originally Posted by
FlightDetent
What about QAR, could the sampling rate be any different? Thanks, FD.
QARs, and QAR data frame design are unregulated (as in, not required), but often have more parameters at higher frame rates than DFDRs in systems which do not "mirror" data going to the DFDR.
I disagree, though not importantly, with tdracer that frame rates greater than one-second are uncommon.
CARS 625.33, Schedule 3 specifies rates which are essentially the same as
U.S. standards.
There are a number of parameters which are sampled at 1/2", 1/4" and higher, (1/8", 1/10"
(B777) & 1/16"
(later Airbus)) rates. The reason is logical - Vertical/longitudinal/lateral 'g' for example, change rapidly, as do flight controls positions, aircraft attitudes and some engine parameters.