One of 39 built and featuring a Napier Lion Va engine (as opposed to the Napier Lion V for the Mk.I). It flew for the first time in March 1925 and that August the first Southamptons were delivered to the RAF. They gained a good reputation as they were able to operate in any weather condition. Illustrating this (albeit with the help of a few modifications), a group of 4 Southamptons made the 27.000 mile journey from Felixstowe to Singapore. Besides the RAF, Argentina (8), Turkey (6), Australia (2 ex-RAF) and Japan (1) bought the aircraft. Photo from Supermarine Aviation Works