Hell from the Heavens
Hell from the Heavens

Author: John Wukovits

Publisher: Da Capo Press, Incorporated

Published: 2015-04-07

Total Pages: 338

ISBN-13: 0306823241

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From acclaimed historian John Wukovits, the untold story of the USS Laffey and her crew, who heroically withstood twenty-two kamikaze attacks at Okinawa which the US Navy describes Òas one of the great sea epics of the warÓ

For Crew and Country
For Crew and Country

Author: John Wukovits

Publisher: Macmillan

Published: 2013-01-29

Total Pages: 369

ISBN-13: 0312681895

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Wukovits tells of the most dramatic naval battle of the Pacific War and the incredible sacrifice of the USS "Samuel B. Roberts." Faced with the surprise appearance of more than 20 Japanese battleships, cruisers, and destroyers, the 1,200-ton "Samuel B. Roberts" turned immediately into action with six other ships.

Introduction to Sonar
Introduction to Sonar

Author: United States. Bureau of Naval Personnel

Publisher:

Published: 1963

Total Pages: 178

ISBN-13:

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Fundamentals of sonar systems are presented in this book, prepared for both regular navy and naval reserve personnel who are seeking advancement in rating. An introductory description is first made of submarines and antisubmarine units. Determination of underwater targets is analyzed from the background of true and relative bearings, true and relative motion, and computation of target angles. Then, applications of both active and passive sonars are explained in connection with bathythermographs, fathometers, tape recorders, fire control techniques, internal and external communications systems, maintenance actions, test methods and equipment, and safety precautions. Basic principles of sound and temperature effects on wave propagation are also discussed. Illustrations for explanation use, information on training films and the sonar technician rating structure are also provided.