Ron Rosenfeld wrote:It seems to me that, as I was taught many years ago, that
the issue is with

circling procedures, in that the protected circling radius varies depending
on a/c speed. However, that would not seem to apply to straight-in
procedures.

In addition, it is my understanding that the missed approach procedure is
constructed in accord with the highest category of a/c authorized to use
that approach. So again, flying at a speed attributable to a higher
category a/c should not seem to alter minimums for straight-in procedures.


There are some approaches where the straight-in minimums step-up for each
higher approach category because of a turning missed approach obstacle issue
that affects the higher turning radii more than the lower.