Coander and RENURPP:
It matters not if it was a military ATC or not. The point is that the ATC must say to any VFR aircraft that is vectored off the runway "VISUAL" with the heading. It is just a rule that we have to do and that is that.
The MATS reference states:
3.2.8.2 When a departing aircraft is required to assume a heading immediately
following take-off, the appropriate controller shall determine the heading and advisethe tower controller as follows:
a. for VFR flights by day or for IFR flights by day in VMC not departing via
a SID "RUNWAY HEADING VISUAL or RIGHT/LEFT (degrees) VISUAL";
Yes, although this talks about what the departures controller says to the tower controller, rest assured that is what is said to the aircraft too. And as it is a heading instruction, it must be read back. I suppose it could be argued both ways as AIP only states that direction of turns and headings are readbacks. I will do a snap poll with the civil tower I work with and see if they chase the "VISUAL" readback.
Cheers all,
NFR.