Hi Bram, you lock and unlock with the halyard. There is a on/off system inside the lock. That is important to unlock with not too much load (except the weight of the sail). Because the fixed point is at the top, you get the load or release the load with the tack line. That is why our client usually install a 3:1 friction sheave at the bottom to get 3 times more power.
Nice! But how does it unlock?
Hi Bram, you lock and unlock with the halyard. There is a on/off system inside the lock. That is important to unlock with not too much load (except the weight of the sail). Because the fixed point is at the top, you get the load or release the load with the tack line. That is why our client usually install a 3:1 friction sheave at the bottom to get 3 times more power.