High Quality Content by WIKIPEDIA articles! The Saunders-Roe A.36 Lerwick was a British flying boat built by the Saunders Roe Limited (Saro). It was intended to serve alongside the Short Sunderland in the Royal Air Force`s Coastal Command, but it was a flawed design and only a small number were built. They had a poor service record and a high accident rate - out of 21 aircraft, 10 were lost to accidents and one lost for unknown reasons.