Marines with Marine Heavy Helicopter Squadron-463, Aviation Combat Element, Marine Rotational Force – Darwin, conduct pre-flight operations to ensure the CH-53E Super Stallions are fully operationally capable and safe aboard Royal Australian Air Force’s Base Darwin, April 18. The ACE completes the Marine Air-Ground Task force capability that MRF-D contributes during its third rotation to Australia, offering assets such as casualty evacuation, heavy lifting and troop movement when called upon.