The Igor I. Sikorsky aircraft legacy
Subtitle: the chronology of fixed-wing and rotary-wing aircraft of Igor I. Sikorsky and the Sikorsky Aircraft Company
By: written and illustrated by Joseph Keogan
Publisher: Igor I. Sikorsky Historical Archives, Inc.
Published: 2003
Place of publication: Stratford, CT
Language: eng
Number of pages: 88
Subjects: Sikorsky helicopters