Report: Deegan, SE. 1975. Cruise Report for survey of the Brent area. MV Aqua Star. MGU Project 75/06. (IGS Report No 61) Navigation: Principal fixing method was by Decca Main Chain, Hordaland Hi-fix and IGS Sat/Nav system. Equipment: Nova Scotia Deep Tow Sparker and IGS multi-tip sparker. Edo Western pinger. Atlas Deso echo sounder.