When Size and Cost Know No Limits: The World's Biggest and Most Expensive Military Planes Revealed: When Size and Cost Know No Limits: The World’s Biggest and Most Expensive Military Planes Revealed
1. The Jayhawk T-1A I joined the service in 1991. Not retired: N/A Expense: *$4.1 million The Air Force Joint Specialized Undergrad Pilot Instruction currently uses the T-1A Jayhawk for…