I remember a similar incident when I was on the Coastal Command Com Flt in the very early sixties. We were flying to Scotland daily due to a big Nato Naval Exercise up there when a Shackleton dropped one of the latest Sonar Beacons to monitor under water traffic. Shortly after the drop, a Russian Submarine surfaced, collected the floating Beacon, and then submerged.
Last edited by brakedwell; 30th Sep 2021 at 11:54.