Lessons Learned, Headquarters, 12th Combat Aviation Group Open PDF Document Details Document Type Technical Report Publication Date May 14, 1969 Accession Number AD0503461 Entities Organizations Adjutant General's Corps Tags Communities of Interest Biomedical Human Systems DTIC Thesaurus Topics Aircraft Equipment Aircrafts Airframes Army Aviation Attack Helicopters Availability Chaplains Education Engineers Flight Training Helicopters Lessons Learned Personnel Management Security Training United States Warfare