𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The future of aeromedical helicopter programs


Book ID
114264069
Publisher
Elsevier Science
Year
1986
Weight
296 KB
Volume
5
Category
Article
ISSN
0740-8315

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The current status of helicopter noise prediction is examined in this paper. A brief history is given, followed by a discussion of the status of prediction for each source mechanism. The acoustic analogy approach, and specifically, theories based on the Ffowcs Williams -Hawkings equations are the mo