A VFR tower is a facility at which the Tower controllers are not radar certified. A VFR tower may have BRITE equipment to assist the local controller with situational awareness but the controllers do provide radar services as defined in the AIM.
The VFR tower provides IFR separation between arrivals and departures and successive departures per LOA with the overlying radar facility. VFR towers issue IFR clearances all the time. However that is not what sets them apart. Even at big terminals like JFK the clearances issued by the tower outside the TEC structure are only issued with approval of the overlying ARTCC. Additionally, VFR tower can issue a special VFR clearance which is a form of IFR clearance in that IFR separation is provided to that a/c. Biggest difference? They dont vector. At big terminals local controllers are radar qualified for at least limited radar services often full services are provided and the tower may have an distinct area of jurisduction beyond a class d separate from the Tracon.
The VFR tower provides IFR separation between arrivals and departures and successive departures per LOA with the overlying radar facility. VFR towers issue IFR clearances all the time. However that is not what sets them apart. Even at big terminals like JFK the clearances issued by the tower outside the TEC structure are only issued with approval of the overlying ARTCC. Additionally, VFR tower can issue a special VFR clearance which is a form of IFR clearance in that IFR separation is provided to that a/c. Biggest difference? They dont vector. At big terminals local controllers are radar qualified for at least limited radar services often full services are provided and the tower may have an distinct area of jurisduction beyond a class d separate from the Tracon.