A large area of forest in the province of Quebec was sprayed by aircraft in the annual program to protect against spruce budworm. Three of the four aircraft types used were large 4-engine piston airplanes, converted from their original role of passenger aircraft. Spraying was done at altitudes of 300 ft. to 400 ft. above ground level and so the aircraft were subjected to a more severe load spectrum than would be experienced in the normal airline operation for which they were designed, resulting in a decrease in their expected fatigue life. The loads on several of the aircraft were monitored with solid state acceleration level counters and a total of 79.6 hours of data representing aircraft design stress levels were obtained for subsequent analysis. Results of the study are provided. (Author)
Flight Loads on Large Aircraft Engaged in 1974 Budworm Spraying Program
1974
29 pages
Report
Keine Angabe
Englisch
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