Unspecified / 1950
[Technical reports on noise, sandwich panel tests, aircraft spare parts, cargo, aircraft routing, maintenance, costs, so
[Technical reports on noise, sandwich panel tests, aircraft spare parts, cargo, aircraft routing, maintenance, costs, so
The Smithsonian catalogs [Technical reports on noise, sandwich panel tests, aircraft spare parts, cargo, aircraft routing, maintenance, costs, so as books in its Aeronautics--Planning records.
Includes reports issued under later name: United States Air Force Directorate of Operational Requirements and Development Plans.