PHASE 3 PRELIMINARY DEVELOPMENT PLAN. SYSTEM 118P RECONNAISSANCE PROGRAM (HARP) Open PDF Document Details Document Type Technical Report Publication Date May 01, 1956 Accession Number AD0371458 Tags Communities of Interest Air Platforms Autonomy DTIC Thesaurus Topics Air Force Air Force Facilities Aircrafts Contracts Control Systems Fabrication Flight Testing Government Procurement Governments Ground Support Ground Support Equipment Models National Security Production Test Facilities Unmanned Systems Vehicles