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Author: United States. Bureau of Naval Personnel
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
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Book Description
Author: United States. Bureau of Naval Personnel
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
Get Book Here
Book Description
Author:
Publisher:
ISBN: 9780714871257
Category :
Languages : en
Pages : 120
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Book Description
A graphically stunning, first-ever volume of nautical codes for children This extraordinary visual reference is an introduction to maritime communication through nautical flags, along with morse code, the phonetic alphabet, and semaphore signaling. Today's system of international maritime signal flags was devel-oped in the 19th century, and is still used for communication between ships, or between ship and shore. Each flag, boldly colored for visual distinction at sea, stands for a letter as well as a phrase relevant to seafaring. The resulting code is both beautiful and functional, inviting readers to code and decode messages of their own! Created for ages 6-8 years
Author: Frederick Marryat
Publisher:
ISBN:
Category :
Languages : en
Pages : 294
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Book Description
Author:
Publisher:
ISBN:
Category : Merchant marine
Languages : en
Pages : 156
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Book Description
Author: Lee Conover
Publisher:
ISBN:
Category : Signals and signaling
Languages : en
Pages : 144
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Book Description
Author: Frederick D. Parker
Publisher: CreateSpace
ISBN: 9781478344292
Category : Pearl Harbor (Hawaii), Attack on, 1941
Languages : en
Pages : 104
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Book Description
This is the story of the U.S. Navy's communications intelligence (COMINT) effort between 1924 and 1941. It races the building of a program, under the Director of Naval Communications (OP-20), which extracted both radio and traffic intelligence from foreign military, commercial, and diplomatic communications. It shows the development of a small but remarkable organization (OP-20-G) which, by 1937, could clearly see the military, political, and even the international implications of effective cryptography and successful cryptanalysis at a time when radio communications were passing from infancy to childhood and Navy war planning was restricted to tactical situations. It also illustrates an organization plagues from its inception by shortages in money, manpower, and equipment, total absence of a secure, dedicated communications system, little real support or tasking from higher command authorities, and major imbalances between collection and processing capabilities. It explains how, in 1941, as a result of these problems, compounded by the stresses and exigencies of the time, the effort misplaced its focus from Japanese Navy traffic to Japanese diplomatic messages. Had Navy cryptanalysts been ordered to concentrate on the Japanese naval messages rather than Japanese diplomatic traffic, the United States would have had a much clearer picture of the Japanese military buildup and, with the warning provided by these messages, might have avoided the disaster of Pearl Harbor.
Author: Sir Home Riggs Popham
Publisher: Franklin Classics
ISBN: 9780343297824
Category :
Languages : en
Pages : 118
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: David Craddock
Publisher: Seaforth Publishing
ISBN: 1526784831
Category : History
Languages : en
Pages : 318
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Book Description
A colorful history of visual signalling methods used at sea, from AD 900 to today. What Ship, Where Bound? takes its title from the familiar opening exchange of signals between passing ships, and celebrates the long history of visual communications at sea. It traces the visual language of signalling from the earliest naval banners or streamers used by the Byzantines in AD 900 through to morse signalling still used at sea today. The three sections, Flag Signalling, Semaphore, and Light Signalling each trace the development of the respective methods in meeting the needs of commanders for secure and unambiguous communication with their fleets. Though inextricably linked to naval tactics and fleet manoeuvres, the history of signalling at sea also reflects the exponential growth in global maritime trade in the nineteenth century when dozens of competing systems vied for the attention of ship owners and led to a huge proliferation of codes. By setting each method in the context of its time, the book explores their practical use, successes and shortcomings and, particularly in the case of signal flags – though by no means exclusively so – their place in our visual, cultural and maritime heritage. Covering a wide spectrum of visual signalling methods from false fire, through shapes, furled sails and coloured flags to experiments in high speed text messaging by signal lamp, the book also examines the complex interrelation between all three methods under battle conditions. A detailed analysis of visual signal exchanges before and during the Battle of Jutland reveals both the success and ultimate limitations on flag signalling at the limits of visibility. Extensively and beautifully illustrated, the book will appeal to present and former mariners familiar with the signals, all those with an interest in naval and maritime history, with particular emphasis on late eighteenth-century signalling practice, artists and ship modellers, graphic designers and all those involved in visual communications today. “A brief but colorful history of the signaling at sea and ashore, with much emphasis on the use of flags, semaphore, and telegraph in the age of sail, and how these have evolved through the ages. . . . A fascinating addition to the literature of the sea.” —Warships: International Fleet Review
Author: U S Games Systems
Publisher: U S Games Systems
ISBN: 9781572815636
Category : Games
Languages : en
Pages : 60
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Book Description
Inspired by actual WWII signal training cards, a double deck of playing cards and companion booklet highlight this handsome gift set. The 48-page illustrated booklet recounts the fascinating historical background of the signal flag, semaphore, phonetic alphabet, and Morse code systems featured in the decks. Packaged in a durable and attractive case, the set includes a recreated Morse code flasher device, a signal training indicator wheel, a full-color poster, and other items of historical interest.
Author: Linwood S. Howeth
Publisher:
ISBN:
Category : Communications, Military
Languages : en
Pages : 692
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Book Description
