Oil and Gas Units within this Organisation UnitFromToOPITB MontroseOPITB Bases and Locations Base Unit Montrose NorthOPITB Model Types ModelDel'dFromTo Westland Whirlwind HAR.10119791989 List of Aircraft Model C/N Built ID Whirlwind HAR.2 wa 94 1955XJ723 : ex Wroughton; to site at north side of Montrose. : Unk to Offshore Petroleum Industry Training Base (OPITB) at Forti ...