A newish sub ran aground at Skye she is 7,800 tonnes, equivalent to nearly 1,000 double-decker buses, and is 328ft long. Powered by nuclear means she will never need refueled unlike my Subaru. Shes called the "Astute" an adjective meaning Having or showing an ability to accurately assess situations or people and turn this to one's advantage. Maybe a name change is in order, "Aground" has a cute ring. The Polish submarine sank when they forgot to close the screen door.