紹介
"Superb and amazingly comprehensive." - Cruising World. "Thorough treatment of traditional and electronic methods by an expert." - "WoodenBoat". "Boat Navigation for the Rest of Us" is the only book that teaches navigation the way small-boat skippers actually navigate: by combining electronic aids like GPS and radar with commonsense visual piloting skills and simple chartwork. This second edition covers important developments in electronic navigation, including dramatic improvements in GPS accuracy, the growing popularity of electronic charts and plotting systems, and the increasing availability of navigation information over the Internet. It's a full course in navigation plus a whole toolbox of little-known tips and shortcuts to deal with real-life situations without a slide rule.
目次
List of Sidebars Acknowledgments Introduction 1. How We Navigate Going to an Object in Sight Course, Speed, and Time: The DR Finding the Boat's Position Electronic Aid-to-Navigation Systems Blending Visual, Instrument, and Electronic Information 2. Charts and Publications Charts Latitude and Longitude
Chart Scale and Projection
Chart Symbols
Direction and Distance
Depths
Chart Dates and Corrections
Great Lakes Charts
Charts for Rivers and Reservoirs Publications 3. Navigation Instruments and Equipment The Compass Direction
Variation and Deviation
Bad Compass, Good Course Depthfinders Types of Depthfinders
Depth Corrections
Choosing a Depthfinder Speed and Distance Logs Time Binoculars A Navigator's Kit Radar Radar Measurements: Range and Bearing 4. Aid-to-Navigation Systems Visual Aids to Navigation Color, Shape, Lights, and Numbers
Intracoastal Waterway Aids to Navigation Sound Signals The Global Positioning System and Loran-C Plotters
Additional Similarities and Differences
Accuracy
Coverage
Choosing an Electronic Navigation System
Choosing a Receiver
Differential GPS and WAAS Radiobeacons and Radio Direction Finders Racons Other Radionavigation Systems 5. Finding Where You Are Seaman's Eye Radar and Seaman's Eye Taking Departure Ded (Dead) Reckoning Time, Speed, and Distance Calculations Time
Speed
Distance
Doing the Calculations Mentally
Direction and Time Lines of Position and Fixes Objects for Lines of Position
Fixes from Lines of Position
Radar Lines of Position
Line-of-Position and Fix Errors
Ranges Estimated Positions Distance Off Electronic Navigation Systems Waypoints Measuring and Storing Waypoints with a Receiver
Plotting GPS and Loran-C Positions on a Chart
Position with Respect to Waypoints
Using Waypoints Measured by Another Receiver
Converting Waypoints from Loran-C to GPS
Corrections to Waypoint Positions Avoiding GPS and Loran-C Errors Check before Getting Underway
Electronic Position Jumps
Out of Tolerance Signals 6. Finding Where to Go Seaman's Eye Frozen Ranges
Steering Clear
Water Colors
Waves Going to Distant Destinations Electronic Navigation Systems Coping with Current Plotting
Calculating the Lead Angle
Shortcut Lead Angles
Practical Methods Following the Desired Track Using a Navigation Receiver Bearing to Waypoint
Cross-Track Error
Course Made Good
Estimated Time En Route
Scratch Waypoints
Staying in Good Water Losing Electronic Navigation Radar Blending Electronic and Visual Navigation Island Chains, Marshes, and Reservoirs River Navigation Night Navigation Navigation in Fog Radar for Collision Avoidance Collision Avoidance in Poor Visibility 7. Special Techniques Riding a Line of Position The Deliberate Miss The Electronic Navigation Hook Look Behind You Things That Go Wrong Signs of Trouble
Data Entry Errors
Different Bearings to a Waypoint
Shifting Waypoints
Which One Is Wrong?
Onboard Interference
External Interference
Moving the Receiver Long Distances
Cross-Track Error Jumps to Zero Appendix A. How GPS Works Appendix B. How Loran-C Works Appendix C. Good, Bad, and Ugly Receiver Features Glossary Index
