DII FOCUS articles offer in-depth, updated looks at significant military programs of record; this FOCUS Article covers the CH-47F/MH-47G Chinook helicopter programs, in the USA and abroad. These helicopters' distinctive "flying banana" twin-rotor
The Air Force has begun testing four MH-139A “Grey Wolf” helicopters at Eglin Air Force Base in Florida, built in a collaboration between two Philadelphia helicopter plants run by separate multinational defense contractors.