Top of the class . Sikorsky S-76C+ flight test
Flight international ; 154 , 4642
1998
Article (Journal)
English
Welt , Zeitschrift , Luftverkehr , Mechanik , Luftfahrt
NH-3A (Sikorsky S-61F) Flight Test Program
NTIS | 1970
|Sikorsky. The sikorsky "guardian."
Engineering Index Backfile | 1928
Sikorsky aircraft : first flight VS-300 50 years : 100 years Igor Sikorsky
GWLB - Gottfried Wilhelm Leibniz Bibliothek | 1989
|Engineering Index Backfile | 1928
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