“The Excel app has in it all forms and calculations, which you need in order to make the appraisal and prepare a detailed passage plan. The spreadsheet calculates Rhumb and Great circle distances, courses, wheel over points, Squat, UKC and air draft calculations etc.
Furthermore, you can keep a history of all your previous voyages/ waypoints and combine as necessary.”
How to use?
The user is asked to provide input such as Ship’s name, voyage data (way points with latitude and longitude), S.O.S.P time, C/P speed, planned ROT, expected speed, bridge watch levels, position fix intervals and methods, arrival/departure port information, various data connected with squat/UKC/Air draft calculations etc.
The Input cells are highlighted in blue
Additional information and guidelines for the different input required can be found in the guide sheet.
1. Brown, Son & Ferguson, Brown’s Nautical Almanac 2014 Edition
Have a nice and safe voyage.