Emergency Navigation Find Your Position and Shape Your Course at Sea Even If Your Instruments Fail

ISBN-10: 0071481842

ISBN-13: 9780071481847

Edition: 2nd 2008

Authors: David Burch

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Book details

List price: $21.00
Edition: 2nd
Copyright year: 2008
Publisher: McGraw-Hill Professional Publishing
Publication date: 7/11/2008
Binding: Paperback
Pages: 288
Size: 7.00" wide x 9.00" long x 0.75" tall
Weight: 1.034
Language: English

David Burch is the director of the Starpath School of Navigation and a recipient of the Institute ofNavigation's Superior Achievement Award for outstanding performance as a practicing navigator. He has logged more than 70,000 sea miles including twelve transoceanic races. He is the author of nine books on marine navigation, including Emergency Navigation and Modern Marine Weather.

List of Figures and Tables
Foreword to the First Edition
Preface to the Second Edition
What Is Emergency Navigation?
The Scope of This Book
Preparation for Navigational Emergencies
Time and Place at Sea
Latitude Regions and Seasons Defined
Time in Navigation
Finding Position versus Keeping Track of Position
Directions at Sea
Choosing a Route
Compass Checks
Steering without a Compass
Steering by Wind and Swells
Reading the Wind
Swells, Waves, and Ripples
Wind Shifts
Steering by the Stars
Know the Whole Sky
How the Stars Move
Steering by the North Star
The Summer Triangle
The Great Square of Pegasus
Finding North without the North Star
Steering by Orion
Steering by Gemini and Procyon
Steering by Scorpio
Steering by the Southern Cross and the South Pole
Steering by Overhead Stars
Steering by Zenith Stars
Star Paths
Timing Low Stars
Steering by the Sun
Sunrise and Sunset
Morning Sun and Afternoon Sun
Local Apparent Noon
Solar Time Method
The Shadow-Tip Method
The Tropics Rule for the Sun
Sun Crossing Due East or West
Sun Compasses
When the Sun Is Obscured
Steering by Other Things in the Sky
The Moon
The Planets
Clouds, Birds, and Planes
Steering in Fog or Under Cloudy Skies
How to Make a Magnetic Compass
Direction Finding with a Portable Radio
Streaming a Line along the Centerline
Finding the Sun as a Viking Would
Ocean Currents
Tidal Currents
Wind-Driven Currents
Coastal Currents
Dead Reckoning
Emergency DR
Finding Boat Speed
DR Errors from Speed and Direction
DR Errors from Current and Leeway
Progress to Weather
Latitude at Sea
Makeshift Altitude Measurements and Calibrations
Makeshift Altitude Corrections
Latitude from Polaris
Latitude from Zenith Stars
Latitude from Horizon-Grazing Stars
Latitude from Double Transits of Circumpolar Stars
Latitude from the Sun at LAN
Latitude from the Length of Day
Keeping Track of Latitude
Longitude at Sea
Longitude from Sunrise or Sunset
Longitude from LAN (the Equation of Time)
Finding UTC from a Known Position
Keeping Track of Longitude
Coastal Piloting without Instruments
Signs of Land at Sea
Visible Range of Lights and Land
Distance Off
Running Fix from Radio Bearings
Course Made Good in Current
What to Do with What You've Got
Routine Navigation with Everything
Position by Radio Contact
Everything but UTC
Everything but a Sextant
Everything but Sight Reduction Tables
Everything but a Compass
Everything but an Almanac
Nothing but UTC
Annotated Bibliography
Basic Marine Navigation
Almanac Data
Stars and Star Identification
Finding Longitude without Time
No-Instrument Navigation
Emergency Seamanship
Periodicals of Interest to Emergency Navigation
Meteorology and Oceanography
Published Aids to Navigation
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