Vikers Viking 1B-J750 aircraft was manufactured by Vikers Armstrony of UK. It was designed to fulfill the commercial needs for passengers and freight transportation.
Pakistan Air Force operated this, specially built VIP version, known as Viking 1B-J750. This aircraft had additional navigation aids as well as VIP configuration seating and internal layout. It was first flown in August, 1946 and used by PAF in 1948. It had two piston engines, Hercules 634, fourteen cylinder radial air-cooled engine; with a thrust of 2 x 1690HP. Its maximum speed was 263 mph and climb to a height of 23,200 feet.
This aircraft was in the personal use of Quaid-e-Azam Mohammad Ali Jinnah, the founder and first governer-general of Pakistan, till his death on the 11 September, 1948; when he flew from quetta to Mauripur (now Masroor Air Base).
Group Captain Mian Atta Rabbani was the first ADC (Aide-de Camp) of Quaid-e-Azam. He was also the first pilot to be transferred from the Royal Indian Air Force to the Royal Pakistan Air Force in the newly-born state of Pakistan. Later, this aircraft was retired in 1953 and preserved in one of the world-renowned aviation museum in Karachi known as Pakistan Air Force Museum.