Hey,
I am trying to understand a specific part of the instrument stystem of the B737 CL series.
Regarding the VSI.
Its stated that the static source is fed to the ADC whitch in terms feeds data to the IRS?
Now, why would you want the IRS calculate the vertical speed?
On GA aircraft the vertical speed is sensed directly from the static source.
Even IVSI can be fed direclty from the static port if I remember my ATPL correctly.
Clarification would be highly appreciated