The Sikorsky twin-engined amphibian type S-38 model 1928.

Bibliographic Details
Corporate Authors: Sikorsky Manufacturing Corporation, United States. National Advisory Committee for Aeronautics
Format: Book
Language:English
Published: Washington, [D.C.] : National Advisory Committee for Aeronautics, [1928]
Series:Aircraft circulars ; no. 79.
Subjects:
Description
Item Description:Cover title.
"August, 1928."
"Prepared by Sikorsky Manufacturing Corporation."--Leaf [1].
The Cushing Library/Ragan Military copy donated in memory of Robert L. Acklen, Jr., class of '63.
Physical Description:13 leaves, 3 unnumbered leaves of plates : illustrations ; 27 cm.