Under no circumstances should the same person who surveyed a vessel carry out the compass adjustment or repairs. These professional grade compass deviation log books let you record your workactivities and are of the highest quality. Includes handy variation charts, as well as fullcolour skyatnight views of the main constellations with navigable stars highlighted. We use cookies to enhance your experience of the compass platform.
Because the distances from the coefficients b and c correctors to the standard compass card and to the transmitting element are. Deviation can be measured by swinging the compass, that is, checking the compass reading when the boat is on a known heading, round a 360 series of headings, and plotting the resultant errors. Manual data entry in the logbook is known to reduce productivity, irrelevant information, errors, contains inaccurate estimates for production quantities, deviation. There are two modes of operation for the cascade control feature, deviation and process. Take true course, look up magnetic variation on the chart, magnetic deviation on a compass card and compute a compass heading to fly. The position of correctors should be recorded in the compass book and on deviation cards. These log books are essential for rocksolid record keeping. Our log books are used by some of the worlds most innovative companies and most prestigious research institutions. The compass observation book contains twenty eight pages of tables to show date, position, heading, bearing, error, variation by chart, deviation, heel. Log book with hard cover, 190mm x 274mm, 126 pages, 54 days. By clicking continue or by continuing using our compass platform, you are agreeing to our use of cookies. Compass corrections and navigation logbook youtube. For your patients, professional development and practice. Notes, cautions and warnings appear throughout this book to draw your.
The date of any adjustment and other details should be noted in the compass deviation book. While the swing continues the name of the deviation is constant. Includes handy variation charts, as well as fullcolour skyatnight views of the. For recording compass and gyro errors, with skyatnight views of the main constellations identifying the navigable.
You can plot a graph of the effect of change in boat heading on the deviation, this is called a deviation curve. User configurable data logging and historical data viewer. Vessel information, safety equipment, compass deviations. In addition to dealing with the properties of magnets and the earths magnetism, three chapters are devoted to the magnetism of the ship, the third explaining in detail the reason for, and composition of, the nine rods. We have over 1,000 case studies to share, but wed rather create a new one with you. Ncompass client portallogin ncompass international. Such details should include the position of all compass correctors as well as the vesselsposition and sea conditions when the. Notes, cautions and warnings appear throughout this book to draw your attention to important operational and. Martingale suite 300 schaumburg illinois 60173 8884444730. Dev lo deviation low hold back places the program in hold when the process value deviates below the set. Compass error logbook nautical charts, books, maritime.