"Steven P. McNicoll" wrote:

A third one was south of the El Toro MCAS which is now closed, the Class D
airspace apparently was dropped when the base closed. Part of this one
didn't even touch the surface. I have old charts which depict this area, I
can post some images if you're interested.

When El Toro closed KSNA lost half of its Class C airspace because of the way
the rules were made piecemeal. It took over a year to get that airspace
modified and redesignated to provide the Class C protection for KSNA that used
to be there when El Toro was operating.

Airspace designations are only as good as the regional airspace staffs
responsible for them.