Marine Corps Gunnery Sgt. Christopher L. Hawley supervises preflight checks of a CH-46E Sea Knight helicopter on Camp Pendleton, Calif., March 31, 2014. Hawley is a crew chief assigned to Marine Medium Helicopter Squadron 364, Marine Aircraft Group 39, 3rd Marine Aircraft Wing. After 47 years of flying the CH-46, members of the squadron take off, fly in formation and land in unison, signifying the transition to the MV-22 Osprey. Marine Corps Gunnery Sgt. Christopher L. Hawley supervises preflight checks of a CH-46E Sea Knight helicopter on Camp Pendleton, Calif., March 31, 2014. Hawley is a crew chief assigned to Marine Medium Helicopter Squadron 364, Marine Aircraft Group 39, 3rd Marine Aircraft Wing. After 47 years of flying the CH-46, members of the squadron take off, fly in formation and land in unison, signifying the transition to the MV-22 Osprey. SHARE: Download: Full Size (2.16 MB) Tags: Photo Essays Credit: VIRIN: 612264-V-EUU52-953.jpg Photo Gallery