With the help of smarttune load sensors from Cyclops Marine, North Sails One Design Expert, and J/70 World Champion Charlie Cumbley explains how the dynamic balance of upwind performance hinges on forestay load. We were one of the first boats that used the smarttune from Cyclops Marine, and did some analysis after our races in […]
In August we installed a smarttune to measure forestay tension (story here). The initial impressions were great; installation was super simple and having the tension on the mast display made communication much easier. But after sailing Rolex Middle Sea Race and also the Coastal Race in Malta (that hade a very shifty upwind leg) we […]
For some time I’ve been looking for a way to measure forestay tension. Both to collect data for analysis but also to get a clear visual reference for both trimmers and helm. Today we have references on the hydraulic cylinder and have to turn around to figure out if we’re on 5 or 8. I’ve […]