Originally Posted by gggGuest
I don't get involved with such things, so I don't know, but for unrolling the jib to be a bigger load on the sail than the wind provides would seem surprising unless the system had quite horrendous friction..
gggGuest. I had no alternative than to modify my reefing system. The sail maker who likes to make the 8 m2 sail, is pulling the sail in at the middle, while a normal jib is from the bottom close to the reefing drum. The result was that the force on the middle of the 25 mm pipe was often too great and the pipe started to bend. Needless to say, that the system was not reliable enough.
Therefore I have split the drum in 2 sections and made it a type of “endless loop”. If I roll the sail out, the rope winds up on the other side. If the sail needs to be reefed in, I bring it back by pulling the other way.
It performs like a dream , it is reliable and I am able to pull the rope from the cockpit. The only disadvantage is that I had to reduce the rope size from 8 mm to 6 mm. To enable to reef the sail in and out.
Cost? I made it for 3 dollar off cut stainless steel from a manufacturer, who otherwise have to sell it at scrap value. A piece of strong plastic pipe, 4 long SS bolts and nuts and 6 small 5 mm SS bolts. I used a lathe to make 2 end parts from a piece of aluminium rod. Thereafter, I did some anodizing on the aluminium end parts. Bought for 2,5 dollar 15 meters of 6 mm rope. I used 2 mm SS welding wire for the guidance of the rope A piece of rubber I still had and the total cost was +/- 10 dollar.
This exclude the anodized aluminium 25 and 22 mm pipes on which the sail roll up.