Military Potential Test of Primary Helicopter Trainers. Open PDF Document Details Document Type Technical Report Publication Date May 23, 1967 Accession Number ADA031674 Tags Communities of Interest Air Platforms DTIC Thesaurus Topics Aircraft Doors Aircrafts Altitude Army Army Aviation Aviation Accidents Control Systems Doors Fire Extinguishers Helicopters Instrument Panels Landing Lights Safety Specifications Structural Components Test And Evaluation United States