SANTIAGO, Chile — The Boeing CH-46 medium-lift helicopter, retired from service in the U.S. Navy and Marine Corps, may get a new lease on life, this time with the Argentine Air Force. Talking to ...

Piasecki Aircraft has inducted the first four CH-46 helicopters to be upgraded under a joint program with commercial operator Columbia Helicopters.

The Marine Corps on Tuesday grounded its fleet of more than 200 CH-46 helicopters after an inspection revealed a possible mechanical defect.

The Marines wanted an aircraft that could carry at least 24 troops, but only take the same small space on a ship deck as the CH-46 helicopter, which the Osprey was replacing.

The Marines wanted an aircraft that could carry at least 24 troops, but only take the same small space on a ship deck as the CH-46 helicopter, which the Osprey was replacing.

Twelve other passengers survived. Lieutenant Colonel Christopher Garver, an American military spokesman, declined to provide details about the twin-rotor CH-46 helicopter’s mission or the reason for ...