P.s. Paul (A32X), I forgot to mention. The reason that you don't see DH's listed for CAT III approaches is because, as stated in my post above, in these situations there is no DH, only alert height.CheersDavid

David,"I can't remember what the 'OC' in 'OCA' stands for but the bold numbers are DH as shown on the baro altimeter and those in brackets ar Radio alt heights."OC = Obstacle clearanceOCA = Obstacle clearance AltitudeOCH = Obstacle clearance HeightCheersBill

Thanks Bill :)David