Lance Cpl. Chris Eichelberger, a gunner with a Marine

Lance Cpl. Chris Eichelberger, a gunner with a Marine Light Attack Helicopter Squadron (HMLA) 169, and a native of San Diego, Calif., looks out of the UH-1Y Huey helicopter in preparation to launch from the flight line at Marine Corps Air Station Yuma, Ariz., as part of Weapons and Tactics Instructors Course 1-14. WTI is a biannual, seven-week training evolution that trains pilots from every corner of Marine aviation to become experts in tactics and effective situational employment of their aircraft and weapons systems. The intent is to make those who complete the course fully capable of passing their knowledge on to newer pilots. (Official photo by Cpl. Zachary Scanlon)