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23/07/03 14:51:33

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Subject: Re: TS240 mast - weight and ease of stepping Author: Jonathan Dodd [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 20/08/04 19:27:23 In reply to: Henry and Mary Brown 's message, "TS240 mast - weight and ease of stepping" on 8/08/04 17:44:40 For what it is worth here is how I have raised and lowered the mast on my TS240 Azurian. Two lengths of timber through bolted to form an A frame with a V above the bolt lashed at the back of the cockpit so it cannot move fore or back. A piece of carpet pile upwards lashed to the top of this crutch allows easier sliding to locate the mast heel for its through bolt it may have to be lifted to slide crosstrees over. The frame needs to be high enough to allow the mast to clear the cabin top. When down there is a lot of overhang at the rear. On the foredeck two more timbers - 10feet from memory similarly throughbolted near the top and lashed through holes at the bottom to the toe rail just forward of the shrouds. The top should be just projecting over the pulpit. To raise start with the forward A frame vertical with a line over attached to the forestay (just behind the frame) and down through a block attached to the stem head. I have then led this back to a cockpit winch but lately have attached it to a block and tackle laid on the side deck to step up the winch power. The mast is heavy and this extra step makes the winching easy and allows very precise control for the ascent or more critically the descent. When the mast has risen to the nearly vertical position the head of the frame will be in the way but by then most of the weight is on the foot so it is not difficult to desengage the frame and fix the forestay or pull down tight with the tackle. Masking tape does a grand job of fixing the tangs so they do not fall out of the mast in mid process and breaks away when full tension is applied - similarly it holds the bottle screws vertical to avoid the bending risk. To my mind the size of the A frame is crucial as it needs to be tall enough to give an adequate upward pull to get the whole process started. Helpers are useful to pull on a shroud if a side wind comes up at the wrong moment. Pick a calm day and they aren't necessary. [ Next Thread | Previous Thread | Next Message | Previous Message ]