About a lifetime ago -73 or 74 - did the loads work on Jaguar arrestor hook trials at Boscombe with the RHAG there IIRC the max design deccel was 1g at 200kts The hook was about 25 x 25mm solid steel We looked at a Phantom also on A squadron it's hook was about 125 x 125mm but was hollow Designed for 4g routine arrests! We were unpopular with Boscombe as we wrote off two wires on the RHAG - inner core showing on one and 75mm kink in 2nd - oops Tough life these cables have