Boeing (NYSE: BA) has delivered the last of six MH-139A Grey Wolf test helicopters to the U.S. Air Force, marking the program’s transition from research and development phase to low rate initial production.
The helicopters are slated to replace the Air Force’s aging fleet of Bell UH-1N Hueys that perform missions such as off-base nuclear weapons convoy surveillance and routine missile site support. The service has operated the military variant of the Bell 212 since 1970.
