A random collection of notes which I hope that others will find useful.

OpenCPN presentation slide screenshotI presented a talk entitled “Introducing OpenCPN” to the Little Ship Club Canterbury at the Naval Point Club Lyttleton on 19 April 2018. You can download a PDF file of the slides by clicking the following link. Introducing OpenCPN




GRIB over satellite image by .  This is a short How-To on displaying weather satellite images from the NOAA APT satellites in OpenCPN and then overlaying GRIB weather data over the satellite image. A useful tool for checking the validity of the GRIB model’s forecast. Click here to view the How-To in your browser or download as a PDF GRIB overlay on NOAA APT satellite images