Sybarite
Well-known member
in this months "Voile Magazine" (in addition to a Hallberg Rassy 40 test - lovely boat but would want to pay nearly twice the price of an Oceanis 42 centre-cockpit ?) :
1) Hull cleaning by cryogenics (see thread in scuttlebutt about removing old antifouling)
Carbon dioxide pellets (-79°c) are projected against hull like sand blasting. Mixture of physical and thermal shocks means old a/f peals off easily, therefore quickly. It also opens osmosis blisters at same time. Must however be done professionally €300 + €80 per metre - about 15% more than sand blasting. Apparently it is not very efficient on wood.
2) Anchor chain damping by using large sea anchor attached directly to chain and hung just below the surface of the water. The effect is to trap 1 1/2 tonnes of water as a serious damper. The anchor can also be used as a flopper stopper when hung midships from the boom.
3) A boom brake by using a climber's ring attached to the end of the boom. A line is led from say the toerail up through the ring, round the shoulder of the ring, back though the ring and down to a pulley on the other toe rail. From there the line can be tensionned as required to a winch. Apparently the reader submitting the idea said it worked perfectly during his trans-Atlantic crossings.
John
<hr width=100% size=1>
1) Hull cleaning by cryogenics (see thread in scuttlebutt about removing old antifouling)
Carbon dioxide pellets (-79°c) are projected against hull like sand blasting. Mixture of physical and thermal shocks means old a/f peals off easily, therefore quickly. It also opens osmosis blisters at same time. Must however be done professionally €300 + €80 per metre - about 15% more than sand blasting. Apparently it is not very efficient on wood.
2) Anchor chain damping by using large sea anchor attached directly to chain and hung just below the surface of the water. The effect is to trap 1 1/2 tonnes of water as a serious damper. The anchor can also be used as a flopper stopper when hung midships from the boom.
3) A boom brake by using a climber's ring attached to the end of the boom. A line is led from say the toerail up through the ring, round the shoulder of the ring, back though the ring and down to a pulley on the other toe rail. From there the line can be tensionned as required to a winch. Apparently the reader submitting the idea said it worked perfectly during his trans-Atlantic crossings.
John
<hr width=100% size=1>