Engineer cumulative field training exercise gets added flying bonus The sound of a CH-47 Chinook helicopter bounced around the hills as it flew in low over the trees, following the course of the Big Piney River at the eastern boundary of the installation near Training Area 250. As it approached the helicopter landing zone, or HLZ, early morning mist and colorful leaves were blown down over the … [Read more...] about Aviation ‘makes all the difference’