The Smoke-trail Method for Obtaining Detailed Measurements of the Vertical Wind Profile for Application to Missile-dynamic-response Problems
The Smoke-trail Method for Obtaining Detailed Measurements of the Vertical Wind Profile for Application to Missile-dynamic-response Problems

Author:

Publisher:

Published: 1961

Total Pages: 52

ISBN-13:

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Detailed measurements of the vertical profile of the wind are urgently needed for studies of the response of rising missiles, but conventional wind-measuring systems cannot provide the accuracy and detail required over the necessary range of altitudes. A method is presented for obtaining a detailed, accurate profile over a large altitude range. The method utilizes photogrammetric measurement of successive positions of the trail of an ascending rocket. Construction of a rocketborne smoke generator is discussed and the photography, film reading, and data-reduction procedures are described. The accuracy of the method is examined and error equations are derived. Finally, some examples of wind profiles measured by this method are shown, and their implications for missile response are indicated.

Techniques for Depositing Visible Smoke Trails in the Stratosphere for Measurement of Winds and Turbulence
Techniques for Depositing Visible Smoke Trails in the Stratosphere for Measurement of Winds and Turbulence

Author: William K. Vickery

Publisher:

Published: 1975

Total Pages: 24

ISBN-13:

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Air Force Cambridge Research Laboratories conducted two field programs at the White Sands Missile Range to obtain experimental data for the Climatic Impact Assessment Program of the Department of Transportation. These data provide a prediction of the residence time and behavior of exhaust products deposited by supersonic aircraft in the stratosphere. The data were obtained by photographing smoke trails from rockets and aircraft dispensing systems. This report describes the development and flight results of (1) the rocket dispensing system, designed to produce vertical smoke trails over the 12- to 25-km region, and (2) the aircraft dispensing system, designed to produce horizontal trails at 16- and 20-km altitudes.