MikeATC Retired FAA, NATCA Member Nashville TN

FM is correct again, and DJ is way wrong. In class C you have radar so you can use standard radar seperation, in Class D (normally a VFR Tower) it is one in and one out. Also you might find yourself with a SVFR doing touch and go's, in that case the SVFR acft. has to be on the ground prior to the IFR arrival (class D airspace).