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Journal of Aircraft and Spacecraft Technology

ISSN 2523-1197 (print)eISSN 2523-1200 (online) Open access
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Review Article · Open access · Published 15 April 2019

“Defiant”, a Today Unique Helicopter in the World

Relly Victoria Virgil Petrescu
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  1. doi:10.1016/j.ast.2025.110959Found 19 September 2025