John R. Copeland wrote:


You say LPV course widths ramp down gradually over some miles?
Should LNAV/VNAV approaches do the same?

RNAV IAPs, other than LPV, ramp down from 1.0 miles to 0.3 miles
starting two miles prior to the FAF, and completed at the FAF. Then,
the sensitivity remains at 0.3 throughout the final approach segment.

With LPV, the sensitivity continues to increase (course width decreases)
from the FAF to the runway. That causes LPV to be an angular system
from the FAF to the runway. Not so with other RNAV.