Portable Perspective Sketcher (Hehr-o-graph),

Abstract

The portable perspective sketcher (Hehr-o-graph) designed by the Special Devices Division Bureau of Aeronautics, U. S. Navy, has been examined and tested to determine the limitations, adaptability, and possible use of such an instrument as a standard item of issue to Army and Base Topographic Battalions.

Document Details

Document Type
Technical Report
Publication Date
Sep 22, 1944
Accession Number
ADA955111

Entities

People

  • John T. Pennington

Tags

DTIC Thesaurus Topics

  • Aeronautics

Fields of Study

  • Education

Readers

  • Geodesy
  • Manufacturing Engineering.
  • Systems Analysis and Design