Accession Number:

AD0719922

Title:

Aircraft Anti-Icing System: Principles of Design and Test Methods,

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Report Date:

1971-01-26

Pagination or Media Count:

380.0

Abstract:

Theoretical fundamentals and practical methods of calculating and testing anti-icing systems AIS of aircraft and helicopters are described. Based on generalizations of results of experimental research, the meteorological conditions under which icing of aircraft and power plant is possible are pointed out, and the conditions that must be taken as calculation basis in designing AIS are set forth. The unfavorable effect of various forms and types of icing on stability and control of aircraft and engine performance is discussed. Approximation methods of calculating the dimensions of icing zones are presented. Present-day mechanical, physico-chemical, and thermal anti-icers are briefly examined and criteria for evaluating them when designing AIS are proposed. Principal attention is paid to electro-thermal and preheat-air systems, for which detailed methods of heat calculations are spelled out. Methods and techniques of testing AIS under full-scale and artificial icing conditions are described and tests with icing simulators are analyzed. Author

Subject Categories:

  • Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE