by Rockit Admin | Dec 3, 2025 | Blog
IRC tweaks for a J109: bigger genoa, Code Zero… or a flying headsail? If you sail a J109 under IRC you quickly discover that every sail change is a trade: a bit more raw speed in exchange for a bit more handicap number. The trick is spending your “rating budget” where... by Jonathan Stock | Nov 21, 2025 | Blog
If you’re running a Rockit Server onboard, qtVlm is a great way to add proper weather routing and navigation on top of your Rockit data stack. qtVlm is a navigation and weather routing package designed for sailing boats. It works with GRIB weather files, boat polars...
by Jonathan Stock | Nov 11, 2025 | Blog
If you’re running a Rockit Server onboard (quietly humming away in the nav station), the OpenCPN Chart Plotter makes a brilliant “situational awareness” layer on top of your performance data collection stack. This guide walk you through a clean install of OpenCPN on a...
by Bill Stock | Aug 21, 2025 | Blog
2020 seems a long time ago now. Being locked down in a converted cow barn at the end of a farm track in Wiltshire took social isolation to the extreme but it gave us time to pause and reflect. For us, that reflection centred on one question: How could we make Rockit...
by Rockit Admin | Jul 30, 2025 | Blog
Understanding how fast your boat should actually go is key to making sure you get the most out of it. If you’ve ever wondered why speed over ground (SOG) isn’t the best guide to fast sailing or why some trips just feel sluggish despite good wind, then dive into polars...
by Bill Stock | Jul 26, 2025 | Blog
Having a game plan that allows you to repeat a process is vital if you are going to improve your overall sailing performance. We are proud to have been long-standing members of the London Corinthian Sailing Club – for longer than we care to admit. Over the years, the...
