| Re: What does a Marstrom Tornado mast weigh?
[Re: SteveBlevins]
#127522 01/02/08 05:31 AM 01/02/08 05:31 AM |
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Posts: 285 | | | | Re: What does a Marstrom Tornado mast weigh?
[Re: SteveBlevins]
#127524 01/02/08 12:25 PM 01/02/08 12:25 PM |
Joined: Jul 2001 Posts: 1,200 Vancouver, BC Tornado
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Posts: 1,200 Vancouver, BC | For an alloy mast, the rules say (Appendix B section for Alloy masts) 23 kg min...which is 50.7 lbs. The new Carbon rig is 14.4 kg min (31.7 lbs).
Mike Dobbs Tornado CAN 99 "Full Tilt"
| | | Re: What does a Marstrom Tornado mast weigh?
[Re: SteveBlevins]
#127526 01/02/08 04:27 PM 01/02/08 04:27 PM |
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Posts: 1,200 Vancouver, BC | The total overall weight is 14.4 kg. The tip weight is not additive to the overall....it's just a method to ensure the top of the mast isn't extremely light (and therefore weak) while the bottom is made heavier to make up the min. weight total. OK, the rules say that the carbon fiber mast is to be weighed horizontally, "supported" (I assume by scales) at the "upper point" and "lower point". Those points are spec'd at 9294mm and 379mm, I can't find spelled out from where, but from the bottom of the mast, "mast datum point" seems reasonable. The rules then specify a max weight (totally rigged) of 14.4kg(31.7lb)(mast) and 6.3kg(tip) Unless I've missed something that gives a total mast weight of 20.7kg (45.5lb) This is a minimum. It also seems a bit heavy. Am I missing something here? Steve
Mike Dobbs Tornado CAN 99 "Full Tilt"
| | | Re: What does a Marstrom Tornado mast weigh?
[Re: SteveBlevins]
#127528 01/02/08 06:24 PM 01/02/08 06:24 PM |
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Posts: 1,200 Vancouver, BC | I know of only two carbon breakages...one was at one of the first events after carbon was introduced....a boat capsized in the rough stuff near harbor entrance and took a pounding on the bottom, destroyed the mast. The other happened about 1 year ago at the Miami OCR...Robbie Daniel's boat had just left the start line in about 25+ knots of breeze...he was a few hundred feet ahead of me when BANG, the mast broke in half near the spreaders. From inspecting the remains, it looks as though the spreader adjuster had failed.
Mike Dobbs Tornado CAN 99 "Full Tilt"
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