An exercise from the late 1970s
We're trying to establish the date this particular exercise took place, just off the end of the pier. The lifeboat Ruby and Arthur Reed, the first of that name, has lines to the morning buoy to the west of the pier and a rocket is fired to establish a line to the lifeboat.
The technique of firing a line by mortar and later by rocket goes back to the earlier 1800s, when it was developed by Great Yarmouth garrison commander Captain George Manby.
Once the lifeboat has taken the rocket line on board, a heavier line is hauled across and a breeches buoy - or more accurately in this instance a stretcher rig - is set up so that an injured person can be passed safely fro the lifeboat to the pier.