During the First World War Britain had a secret weapon - the decoy 'Q' boats. Inside Out investigates ... ships built as decoys. During World War One Germany's fearsome new weapon was the submarine.

From small schooners to 3,000-ton steamers, Q-ships looked like everyday traders. They were designed to engage in a deadly game of cat and mouse, luring in surfaced U-boats as British crews ...

A diary handed down through three generations has helped find the wreck of a German U-boat sunk by a secret Royal Navy Q-ship in 1917. Henrietta Sandford, from Helston, shared diaries and letters ...

During the First World War Britain had a secret weapon - the decoy 'Q' boats. Inside Out investigates ... ships built as decoys. During World War One Germany's fearsome new weapon was the submarine.

The history books agreed there had been a battle between a U-boat and a Q-ship and that they sunk each other. Nearly all serious local divers dreamed about finding them. It was the one that got ...