Honeywell Primus P701A can pick up a marker buoy on a normal day, flock of birds on the surface on a calm day in Ground Map 1 and Ground Map 2 modes. When position verified and radar used for letdown the aircraft may be flown to system minima (GMAP1: 0.07nm, GMAP2: 0.12nm) and SAR AFCS minima as promulgated in relevant Company SAR Operations Manuals approved by the UK CAA.