The Biggest, Most Expensive Military Planes Ever Produced
3. The Hawker Hurricane
Joined the Service in 1935 1947 saw retirement Expense: *$2.1 million The Hawker Hurricane was first flown in 1935 and debuted at Christmas 1937, two years later. The Hurricane was a British aircraft designed by General Motors' rival Rolls Royce using a Merlin engine. Although it did not receive the same level of public coverage as the Supermarine Spitfire, the aircraft was a formidable force in World War II.

4. The F-16 Fighting Falcon
Joined the Service in 1974 Not retired: N/A Expense: *$18.8 million Although the US Air Force was the intended user of the F-16 Fighting Falcon, it is currently in service by 25 other nations. Originally designed as a day fighter with air superiority, this fighter jet has developed into a successful multirole aircraft capable of flying in all weather conditions throughout time. From the time General Dynamics won the contract in 1976, 4,604 of them have been constructed.
