"Matt Young" wrote in message
ink.net...

If my understanding is correct, class D airspace always reverts to class
E anytime the tower is closed, therefore, the area depicted would be
treated as class E (or B, I'm not around Chicago, so I don't know if
it's inside the class C or under it.


Part-time controlled airspace is based on time. The entry for Meigs in the
A/FD was:

AIRSPACE: CLASS D svc 1200-0400Z other times CLASS G.