Observers And Navigators
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Observers And Navigators
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Author : Wg Cdr C.G. Jefford
language : en
Publisher: Grub Street Publishing
Release Date : 2014-05-19
Observers And Navigators written by Wg Cdr C.G. Jefford and has been published by Grub Street Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-19 with History categories.
This title first appeared in 2001 to universal acclaim, quickly went out of print and has remained so since. The author, meantime, has continued his research and the result is this updated edition, over half as long as the first, with stacks of new photographs. Absolutely essential reference for all those interested in military aviation.
The Observer S Book On Astro Navigation
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Author : Sir Francis Chichester
language : en
Publisher:
Release Date : 1941
The Observer S Book On Astro Navigation written by Sir Francis Chichester and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1941 with Navigation (Aeronautics) categories.
Modern Up To Date Navigation
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Author : H. S. Blackburne
language : en
Publisher: Forgotten Books
Release Date : 2018-02-06
Modern Up To Date Navigation written by H. S. Blackburne and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-06 with Science categories.
Excerpt from Modern Up-to-Date Navigation: Position Finding by the Improved "Sumner" Method Contrasted With the New Navigation (Marcq St. Hilaire System), And the Old "Sumner" Method The principal object of the publication of the following notes on practical modern navigation and the extracts and supplementary tables from our books of Nautical Tables is for the purpose of drawing more prominent attention to the great value and importance of the problem for finding the ship's position at twilight from the observa tion of two or three stars. The great value of this problem in navigation was much impressed on the writer through his continued practice of it during several years of his sea life-and the very general neglect of it by the majority of navigators has impelled him to do all in his power during the last thirty and odd years to bring this problem into the regular practice of navigators, so far, he has to admit, without much success. He has long been strongly of'the opinion, which has been further impressed on him by the investigation of more than one shipping inquiry case held in New Zealand, that a general practice of this observation would be the means of saving many ships from disaster. Two shipmasters have already thanked him, one by letter and the other verbally, for impressing the value of stellar observations on them through his books, and stating that through this their ships had been saved from great risk of being lost through stranding. Although our tables are entitled Azimuth and Reduction Tables, and they have been acknowledged as such - to be the most complete and comprehensive tables yet published - the principal purpose of them, in the author's mind, was for facilitating the problem of determining the ship's position from two observations out of the meridian, and especially with the view of making this problem particularly easy for star-work. No doubt they have encouraged, and will yet more do so, a small minority of navigators to take up this problem, but he is now firmly convinced that it will never become a general practice among ship officers till the problem is given in the Board of Trade examinations for masters and mates, and candidates are allowed the use of such tables and methods as they have been in the habit of using to help them in solv ing the problem. The problem is already given in the Board of Trade examination for extra master, but it is set in a way which I presume would never occur in actual practice, requiring two observers with sextants and another person to take the time, and both observers must take their observation at the exact same instant of time, and the problem is then required to be worked by a very lengthy process, which does not always give an accurate result (see example, page The outcome of this is to leave an impression on the mind of the candidate that the problem is too long a business for ordinary practice, and in consequence is very generally dropped after he leaves the examination-room. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Functional Observers For Dynamical Systems
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Author : Hieu Trinh
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-09-24
Functional Observers For Dynamical Systems written by Hieu Trinh and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-24 with Technology & Engineering categories.
The theory of linear functional observers, which is the subject of this book, is increasingly becoming a popular researched topic because of the many advantages it presents in state observation and control system design. This book presents recent information on the current state of the art research in this field. This book will serve as a useful reference to researchers in this area of research to understand the fundamental concepts relevant to the theory of functional observers and to gather most recent advancements in the field. This book is useful to academics and postgraduate students researching into the theory of linear functional observers. This book can also be useful for specialized final year undergraduate courses in control systems engineering and applied mathematics with a research focus.
Air Corps News Letter
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Author :
language : en
Publisher:
Release Date : 1957
Air Corps News Letter written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Aeronautics categories.
The Navigator
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Author :
language : en
Publisher:
Release Date : 1959
The Navigator written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Navigation (Aeronautics) categories.
Air University Periodical Index
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Author :
language : en
Publisher:
Release Date : 1958
Air University Periodical Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Aeronautics, Military categories.
The Air Reservist
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Author :
language : en
Publisher:
Release Date : 1959
The Air Reservist written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Aeronautics, Military categories.
Wildlife Research Report
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Author :
language : en
Publisher:
Release Date : 2001
Wildlife Research Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Game protection categories.
American Practical Navigator An Epitome Of Navigation And Nautical Astronomy
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Author : Nathaniel Bowditch
language : en
Publisher: Rarebooksclub.com
Release Date : 2013-09
American Practical Navigator An Epitome Of Navigation And Nautical Astronomy written by Nathaniel Bowditch and has been published by Rarebooksclub.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09 with categories.
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...be seen and an observation taken, using the star telescope of the sextant; if the moon is shining, its light will be a material aid; but results obtained from such sights should be regarded as questionable and used with caution. Altitudes measured, however, just before sunrise and just after sunset are open to no such criticism; a fairly well-practiced observer who takes a series of sights at such a time, setting the sextant for equal intervals of altitude, will find the regularity of the corresponding time intervals such as to assure him of accuracy. 392. Identification Of Unknown Bodies.--On account of the very great value to be derived from the use of stars and planets in navigation, it is strongly recommended that all navigators familiarize themselves with the names and positions of those fixed stars whose magnitude renders possible their employment for observations, and also with the general characteristics--magnitude and color--of the three planets (Venus, Jupiter, and Mars) which are most frequently used. A study of the different portions of the heavens, with the aid of any of the numerous charts and books which bear upon the subject, will enable the navigator to recognize the more important constellations and single stars by their situation with relation to each other and to the pole and the equator. It may occur, however, that occasion will arise for observing a body whose name is not known, either because it has not been learned, or because the surrounding stars by which it is usually identified are obscured by clouds or rendered invisible by moonlight or daylight. In such a case the observer may estimate the hour angle and declination (the hour angle applied to local sidereal time giving the right ascension), and the star or...