THE RAPID PHOTOGRAMMETRY OF THE SPLASHES OF BULLETS FIRED FROM AN AIRPLANE

Abstract

In studying experimentally the trajectories of bullets fired from an airplane, the splashes of the bullets, in water over which the airplane is flying, are photographed by a camera in the airplane. Targets in the water, at known positions, are also photographed. It is necessary to find the positions of the splashes with respect to the airplane. Usual photogrammetric procedures are very laborious. Here a rapid method is described which makes use of the altitude of the airplane, furnished by an altimeter. The percentage error in the range to the splash is one third of the percentage error of the altimeter altitude.

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Document Details

Document Type
Technical Report
Publication Date
Apr 22, 1942
Accession Number
AD0704865

Entities

People

  • Theodore E. Sterne

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airplanes
  • Altimeters
  • Altitude
  • Cameras
  • Depression
  • Errors
  • Images
  • Integrals
  • Photographs
  • Photography
  • Test And Evaluation
  • Trajectories

Fields of Study

  • Physics

Readers

  • Geodesy
  • ballistics.