"Jose" wrote in message
m...

Jay, as has been pointed out here before, class D controllers do not
control air traffic.

The FARs say that class D is controlled airspace. They also say that you
have to obey ATC instructions. What are the tower controllers controlling
there if not air traffic? Ground controllers control ground traffic. They
are sometimes the same person as the tower controller, sometimes they are
not.

Class D towers do a lot more than sequencing. They can also keep you out of
their airspace, issue instructions to aircraft within their airspace and
expect to be obeyed (or know the reason why not) and so forth. They will
also issue advisories of other traffic and they will control the traffic
pattern.