Author Topic: Carbon Mast Order  (Read 11848 times)

Michael Eisenberg

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Carbon Mast Order
« on: June 04, 2012, 02:25:56 AM »
I will be ordering a replacement carbon mast for Toon Town next week. This would be the time for anyone that wants a carbon mast to piggy back on my order.

Billy Ellis

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Re: Carbon Mast Order
« Reply #1 on: June 04, 2012, 08:42:51 AM »
What happened to your original carbon rig?

Keith Ziegler

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Re: Carbon Mast Order
« Reply #2 on: June 04, 2012, 12:31:10 PM »
Are you ordering a C spar?

Michael Eisenberg

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Re: Carbon Mast Order
« Reply #3 on: June 04, 2012, 01:54:07 PM »
I raced the Delta Ditch run Satutday. A low front went through with 20-25 knot forecast. As we approached the Antioch Channel, the wind went to 30 knots. We were planing at 18-20 with the large PHRF spinnaker when we were hit by a puff that was at least in the high 30s. The boat rapidly accelerated but then buried the bow. The green water coming over the deck was at least a foot tall and filled the cockpit to above deck height. The water was coming in faster than it could drain out of the transom. I had the top hatch cover in place, but not the vertical hatch cover. The cabin inside rapidly filled with water to over a foot high, and only then did the boat rapidly decelerate. At that point the mast vaporized above the spreaders. The explosive shock delaminated everything. The mainsail luff track blew off the mast, the goose neck laminated mount ripped off, the spreaders ripped off, and the middle of the mast went over the bow. Until the explosive failure, the mast never went out of column. I had the shrouds at maximum tension. The shrouds were all intact, the deck hardware undamaged, and the shroud anchor points in the mast were all undamaged.  I still don't understand how the lower shrouds which were still intact allowed the bottom half of the mast to go forward over the bow without actually breaking a shroud.  The 3 boats nearest to me also lost their rigs. Anyway, I talked to my insurance agent, and they'll pay 100% of whatever it takes to get a replacement mast, and they'll replace the sails less 1 years depreciation.
« Last Edit: June 04, 2012, 02:29:53 PM by Michael Eisenberg »

Chris Chambers

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Re: Carbon Mast Order
« Reply #4 on: June 04, 2012, 03:01:30 PM »
Do you remember if you stuck the back of a wave or do you think that the load just got to big up in the rig and then she started to pitch pole?

Michael Eisenberg

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Re: Carbon Mast Order
« Reply #5 on: June 04, 2012, 03:13:07 PM »
It was an inland channel, and the waves were less than 1 foot. I just saw pictures of other boats in the same area just submarining.  Toon Town never really went bow down by very much. It just seemed to get sucked down as the water rushed over the deck

Keith Ziegler

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Re: Carbon Mast Order
« Reply #6 on: June 04, 2012, 05:54:47 PM »
We had the same conditions this past weekend in the Bayview One Design where we were going done wind at some off the chart speed when I looked back and saw a huge puff and no one with a chute up and had my crew take mine down. Oh wait there was one guy who put his up and lost his aluminum rig.

Brad Boston

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Re: Carbon Mast Order
« Reply #7 on: June 04, 2012, 06:46:53 PM »
Hey Michael,

How tight do you run your lower shrouds?

Michael Eisenberg

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Re: Carbon Mast Order
« Reply #8 on: June 04, 2012, 06:57:02 PM »
I normally run them loose. But knowing this was a high speed down wind event, I ran full upper pressure, than tightened the lowers to keep the mast only slightly bent. I didn't check the tension. As it was, when the loads picked up the forestay was quite loose

Brad Boston

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Re: Carbon Mast Order
« Reply #9 on: June 04, 2012, 07:14:55 PM »
OK,

I was just wondering.. I also sail with mine really loose, Max would be around 7 on the guage....

Billy Ellis

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Re: Carbon Mast Order
« Reply #10 on: June 04, 2012, 09:23:14 PM »
Now that's how to get a free carbon boom:-) I'll say one  thing, the forecast is 25+ and ur in the ditch with the "big kite"? You've got some stones!
« Last Edit: June 04, 2012, 10:09:59 PM by Billy Ellis »

Don Corey

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Re: Carbon Mast Order
« Reply #11 on: June 05, 2012, 02:15:28 AM »
Just one question for you Michael:  Where were you and the crew positioned when this occured?
Don Corey   #25  fore 
U20 Class member since 1997

Michael Eisenberg

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Re: Carbon Mast Order
« Reply #12 on: June 05, 2012, 02:30:09 AM »
I was leaning against the corner of the rear stanchion (gripping the tiller in the middle was difficult, and I had no leverage with the extension).  The crew was stacked up next to me. The forward crew was having difficulty describing the pressure of a wall of green water hitting you at 20 knots. She said it was no wonder that 5 crew were cleaned of the deck of Low Speed Chase in the Farralones race.

Chris Chambers

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Re: Carbon Mast Order
« Reply #13 on: June 05, 2012, 03:59:37 AM »
Sounds like you hit the limits of the design, in that much breeze.  Brad - could you attempt a save by raising the tack?

Michael Eisenberg

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Re: Carbon Mast Order
« Reply #14 on: June 05, 2012, 06:17:09 AM »