Black box for the boat?

Maretron Black Box

All of the data about boat speed, wind angle, wind speed and more, travel from the sensors across the NMEA network to the various displays.   But how do you record this data?      Just write a nice sized check to Maretron and they will send you an orange box that is no more than a thumb drive.   It listens to the NMEA network with all the boat telemetry data and stores this data on the internal memory.   After a 1 month voyage you can then upload the data to Excel or their special PC application.

But why would you want this data?  This data can help understand the optimal performance of the boat by wind angle and wind speed.   It can also be the source of data for blog posts.   Sailor’s blogs seemed jammed with “it was 35 knots on the nose” and “puffs over 50 knots”.   But what is the wind really like over a period of 6 months, only the true data can tell you.   Maybe that will ruin the romance of the dramatic blog post?  We do not plan on buying this day one but I can hear the sirens of the chandleries singing my name.