Date of this Version
Office of the Assistant Chief of Air Staff, Intelligence, HQ, US Army Air Forces and Photographic Interpretation Center, Division of Naval Intelligence, Navy Department: April 1944
This report represents the state-or-the-art for photographic intelligence in April 1944 as understood by the Army Air Forces/Navy photographic intelligence effort in the Washington, DC, area. It gives data needed by photo interpreters and service members working with photographic intelligence. It includes mathematical, technical, and organizational data and aids for identification of various types of installations, structures, ships, aircraft, and fighting vehicles.
This report is listed in WorldCat under Accession Number: OCLC: 61437289.
UNITS OF LENGTH. ENGLISH & METRIC; UNITS OF LENGTH. ENGLISH & RUSSIAN METRIC; OTHER RUSSIAN MEASURES; INTERNATIONAL MILE MEASUREMENTS
UNITS OF AREA, UN ITS OF VOLUME, UNITS OF WEIGHT
GRADES AND DEGREES, CONVERSION OF GRADES TO DEGREES, CONVERSION OF DEGREES TO GRADES
CONVERSION TABLE: GRADES TO DEGREES
CONVERSION TABLE: DEGREES TO GRADES
REFERENCE MERIDIANS Although the equator is generally used as zero latitude, not all countries use the meridian at Greenwich, England, as a reference for longitudinal coordinates. ... The following table shows the reference meridians which have been used by various countries and the longitude of the meridian from Greenwich, England:
CONVERSION OF TIME INTO DEGREES OF LONGITUDE
NATURAL TRIGONOMETRIC FUNCTIONS: sines, cosines, tangents, cotangents
LOGARITHMS OF NUMBERS