sentences:  All basic, conversion and refresher pilots as well as aircrew receive training in the MH-53E to prepare them for follow on assignment in the United States Navy.Airborne Mine Countermeasures Weapon Systems Training School (AWSTS) was established 1 October 1994, at Naval Air Station, Norfolk, Virginia and subsequently designated a special mission command in July 1996.Its mission is to provide initial MH-53E Sea Dragon systems and flight training, as well as advanced tactical and weapon systems training, to pilots and aircrew of the Airborne Mine Countermeasures and Heavy Combat Support communities.