To remain operational for long periods at sea it was essential that HMS Ambuscade was able to replenish fuel, stores, ammunition and people whilst on the move. Some of the methods are shown below. The crew was drilled in an Emergency Breakaway procedure if it came under attack.
This was carried out using the Heavy Jackstay method. A Stump Mast was erected in the middle of the flight deck providing a high-point, the Rope (Jackstay) was tensioned and stores and ammunition was then transferred between the delivering and receiving ship. "Erecting the stump mast at sea could be a tricky and dangerous operation. I have personal
experience when one of the two tackles on the hanger roof gave way during this operation and if it had not been pulled to one side by one of the heavy stays whilst falling, my two oppos and i who were pushing it up would not be here to tell the tale"
at Sea in heavy sea HMS Ambuscade RFA Olwen and HMS Alacrity 1979 photo
supplied by Michael Gretton (Capt 1978-1980)
VERTREP (vertical Replenishment)
A quick method of replenishing light stores and mail was using helicoptors