Pilots sit in the cockpit during a training flight from Marine Corps Air Station Futenma to Yokota Air Base May 22, 2018. Training flights are a way for Marine pilots to get flight hours to help maintain their proficiency. They are also used to prepare pilots to fly in harsher weather, if needed. - Pilots sit in the cockpit during a training flight from Marine Corps Air Station Futenma to Yokota Air Base May 22, 2018. Training flights are a way for Marine pilots to get flight hours to help maintain their proficiency. They are also used to prepare pilots to fly in harsher weather, if needed.