To the best of my knowledge these boats were used by both the British Army and the Royal Marines from World War II until
the 1960's and a modern version is still in service. I believe the boats were used by the Engineers for bridge repairs
and the like and by the Royal Marines as both assault and supply boats. Accounts exist of them being used in action by the
Royal Marines at Walcheren in 1944.
The model boat has been sailed (often) at Poole park. It always attracts plenty of interest.