Royal Naval Reserve
HMS "Fittleton, originally named HMS "Curzon, was a wooden-hulled of the Royal Navy which spent most of her career in the Royal Naval Reserve. She was sunk in a collision with HMS "Mermaid" on 20 September 1976 whilst en route to Hamburg for an official visit. Twelve naval service personnel (eleven from the Royal Naval Reserve along with one from the Royal Navy) lost their lives, making this the worst peacetime accident involving the Royal Naval Reserve.