1.

​Check Chafe Before Switching to Fiber Lifelines

3.

Group DSC Primer for Fleets and Safety: Group Calls on your VHF      

Old Link

2.

OpenCPN is a great, free, open source navigation package. I use it all over the
world along with passageweather.com. Worth sharing to sailors and power
boaters.

4.

How to Clean Dock Lines