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Oasis is interesting in that it is rigged to lower/raise the mast using large pelican hooks. Presumably for navigating bridges. I'll post pictures here. I haven't operated it in this fashion. Soon I will replace it all since I would rather have stability for offshore sailing rather than ability to pass under bridges.
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That's interesting.. I am looking forward to seeing your pictures of this system.. Is the base in a tabernacle?
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Just for interest - The mast on Pelli (DE32) is in a tabernacle with a single 1" bolt and the frorward edge of the mast curved upwards. What remains of the original '76 manual has instructions (incompete) on how to lower it using the boom as a cantilever (is that the right word?). I can't see how practicle this would be. For one - it would stick out forard, with the balance point in front of the boat, so it would be impossible to get it all back on the boat. And two - I've experimented with friends on a previous boat and we found that the bottom of at least one shroud had to attach to something solid at the same level and the same position fore and aft as the swivel point at the bottom of the mast. This is so that there is continuous sideways control throughout the lowering process. Otherwise, even the slightest ripple and its out of control. Maybe it was only for use on the hard, to avoid cranes etc.? It would be great to talk to the original builders or first owners to see what they wre thinking!
Tim
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interesting..
is that incomplete documentation part of the stock documentation for a DE32 or an addition? I don't think I have seen it before. If you get a chance to scan that could you send it to me so I can post it? If anyone else has this documentation in full let me know.
scott
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timbalfour said:
Just for interest – The mast on Pelli (DE32) is in a tabernacle with a single 1" bolt and the frorward edge of the mast curved upwards. What remains of the original '76 manual has instructions (incompete) on how to lower it using the boom as a cantilever (is that the right word?). I can't see how practicle this would be. For one – it would stick out forard, with the balance point in front of the boat, so it would be impossible to get it all back on the boat. And two – I've experimented with friends on a previous boat and we found that the bottom of at least one shroud had to attach to something solid at the same level and the same position fore and aft as the swivel point at the bottom of the mast. This is so that there is continuous sideways control throughout the lowering process. Otherwise, even the slightest ripple and its out of control. Maybe it was only for use on the hard, to avoid cranes etc.? It would be great to talk to the original builders or first owners to see what they wre thinking!
Tim
I guess that makes sense.. you could use the main boom for a gin pole and the mainsheet and winch to raise and lower the mast if you still have the end boom mainsheet setup. The existing chainplate connections would probably work up untill a few feet from the mast being parralel to the deck to stay it from side to side. I think if you went all the way parrelel that it would seriously tension them since they are about 8? 10? inches lower than the base of the mast. In general its a very nice feature to have if you don't have access to a crane or shore side facilities to pull the mast to work on it.
scott
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A tabernacle and the ability to hoist a mast manually may not be very practical for negotiating bridges and low lying obstacles, but could prove very useful in raising or lowering a mast in remote areas.
For those of you have not view Yves Gelinas classic cruising film “Jean-du-Sud” about his solo circumnavigation aboard his Alberg 30, you are in for a real treat. There is a brief scene in this 5 minute promotional trailer toward the end that shows him raising his mast, manually, after dismasting around the Horn(e). (Its worth the $3 rental or $10 purchase.)
http://www.thesailingchannel.t.....an-du-sud/
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