And WHAT a barge she is!! This is ‘Terra Marique’, a semi-submersible barge into which RML 497 will be floated, so that the WWII Fairmile motor launch can be transported to Hartlepool for the National Museum of the Royal Navy. ‘Terra Marique’ is the pride and joy of Robert Wynn and Sons, specialised transportation engineers. She has stern doors that can be opened to allow cargoes to float in – float in because she can also sink down, a bit like a submarine (but not so far!), by flooding side tanks. Then, with cargo safely loaded, the stern door is closed and the water pumped out of the side tanks to raise her, and at the same time out of the cargo compartment too. She can self-propel if need be. She’s a game changer, and in regular demand. No wonder.