U.S. Department of Defense

 

Date of this Version

4-1944

Document Type

Article

Citation

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

Comments

The document this was digitized from was borrowed from the Nevada State Library and Archives.

Abstract

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

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