The story of the Winged-S
Subtitle: late developments and recent photographs of the helicopter, an autobiography
By: by Igor I. Sikorsky.
Edition: Rev. and enl. ed., with many illus. from the author's collection of photos.
Publisher: Dodd, Mead
Published: 1967
Place of publication: New York
Language: eng
Number of pages: 314
Subjects: Airplanes; Helicopters
Other titles: Winged-S.