| Re: righting pole vs. water bag
[Re: Mary]
#88299 11/15/06 09:23 AM 11/15/06 09:23 AM |
Joined: Sep 2005 Posts: 1,187 38.912, -95.37 _flatlander_
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Posts: 1,187 38.912, -95.37 | Only problem with it is that you ought not to be taking plastic bags out on the water, because some of them are bound to get lost overboard. Can be deadly for animals and a nuisance for watercraft. Go with a tall kitchen trash bag INSIDE of a burlap or loose woven produce bag.
John H16, H14
| | | Re: Righting Line for Blade
[Re: tback]
#88300 11/16/06 01:46 AM 11/16/06 01:46 AM |
Joined: Jun 2004 Posts: 1,479 Thailand Buccaneer
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Posts: 1,479 Thailand |
I weigh the same as you and find that I need the ATRS to effectively right my boat.
ATRS-Alabama Trash Righting System
(not too much or it will burst
Hey now let's save those trash bags for the trash.. <img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" /> For heavier platforms Wet/dry bags work well (to a point). They are mass produced so relatively inexpensive, won't burst and make a mess, and can be easily clipped into the righting line. Wet bags come in various sizes. One liter water weighs roughly one kg. i.e one liter water = 1 kg.
"House prices have risen by nearly 25 percent over the past two years. Although speculative activity has increased in some areas, at a national level these price increases largely reflect strong economic fundamentals." – Ben Bernanke – 2005
| | | Re: Righting Line for Blade
[Re: Bandit]
#88304 11/17/06 06:45 PM 11/17/06 06:45 PM |
Joined: Jun 2006 Posts: 98 Santa Fe, New Mexico, USA WillLints
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Posts: 98 Santa Fe, New Mexico, USA | One of the problems I've had righting my Blade is when the mast comes up a foot or two but I've not enough ballast to finish the job and the Blade acts like a beach ball, spinning in the wind. The mast rotates away from the wind and soon the wind is hitting the bottom of the tramp, pushing the mast back into the water. Seems like the sea anchor off the bow would help, but then how do you retrieve it after you're back on your feet. Oh, I'm 140 Lb. (64 KG) and 5 foot eight inches. A Murrays righting bag with block and tackle is what I use, but it's not quick. Will
Will_Lints one-up, Blade 706, epoxy bottoms
| | | Re: Righting Line for Blade
[Re: WillLints]
#88306 11/17/06 07:27 PM 11/17/06 07:27 PM |
Joined: May 2006 Posts: 954 Mumbles Y.C Wales U.K Mark P
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Posts: 954 Mumbles Y.C Wales U.K | Stealth F16's have Carbon Masts. Their tip wieght are equal to alu but could be at least 2.2kgs (5lbs) lighter. Thats why we don't carry trash bags with us? Wouter hasn't done the figures yet as he's not into anything but "raw materials". So a wing mast in carbon which can support a kite would be in my view very fast. Both upside down (sh*t happens) or the right way up. MP*MULTIHULLS | | | Re: Righting Line for Blade
[Re: Mark P]
#88307 11/17/06 08:05 PM 11/17/06 08:05 PM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
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Posts: 9,582 North-West Europe | Hey Mark, That is not truthful ! I have done the numbers on the mast way in the past and I've always stated the difference between the two mast materials. One needs 10 to 15 kg less body weight to right a carbon masted F16. At 64 kg Will will never get the alu superwing mast up unaided, he is just too light. He may also be just be able to right a carbon masted F16 in no wind, no waves conditions. Their tip wieght are equal to alu but could be at least 2.2kgs (5lbs) lighter.
It is more then that. Also the tip weights are not equal between alu and carbon. The Stealth masts should be right on minimum tip weight of 6 kg. The alu mast are around 7.5 kg depending on the fittings used. A well designed carbon F16 mast should be about 4 kg lighter then a well designed and fitted alu mast. Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
| | | Re: Righting Line for Blade
[Re: Codblow]
#88309 11/21/06 10:54 PM 11/21/06 10:54 PM |
Joined: May 2006 Posts: 59 Orange County, CA, USA JJD OP
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Posts: 59 Orange County, CA, USA | Six races over the weekend in the Long Beach, CA outer harbor hosted by the Alamitos Bay Yacht Club. A number of A Cats, 4 F-18s and one F-16. All started together. I only turned over once, at the first mark, in the first race. The breeze was probably under 10 mph at that point. Had a knotted righting line rigged similar to the string above but again unable to get the mast out of the water unaidded. Deployed the secret weapon, aka the ATRS. I could get the mast about a foot out of the water with the trash bag on my lap, but no further. Bag failed when I tried to add more water (no I did'nt lose it). Accepted assistance from the picket boat, an open **** whaler. The guy, approximately 5'10", had to raise the mast with arm fully extended before I could then keep it from going back down. I guess my options now are a water bag with block and tackle, or a righting pole. Anyone have a recommendation? The pole sounds more elegant if it will work for me. John, at least I'm getting better, D. P. S. don't ask about my finishing positions, I'll just say I was upright. <img src="http://www.catsailor.com/forums/images/graemlins/wink.gif" alt="" /> | | | Re: Righting Line for Blade
[Re: JJD]
#88310 11/22/06 12:04 AM 11/22/06 12:04 AM |
Joined: Jan 2005 Posts: 163 Atlanta GeoffS
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Posts: 163 Atlanta | I guess my options now are a water bag with block and tackle, or a righting pole. Anyone have a recommendation? They both suck, but the bag sucks less: (a) the bag won't snap in two when you pinch it against your dolphin striker and (b) the bag doesn't stick out the butt end of your boat. | | | Re: Righting Line for Blade
[Re: JJD]
#88311 11/22/06 12:46 AM 11/22/06 12:46 AM |
Joined: Jun 2004 Posts: 1,479 Thailand Buccaneer
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Posts: 1,479 Thailand | I could get the mast about a foot out of the water with the trash bag on my lap, but no further. Bag failed when I tried to add more water ( The trash bag idea was pretty original though hardly optimal…. <img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" />
"House prices have risen by nearly 25 percent over the past two years. Although speculative activity has increased in some areas, at a national level these price increases largely reflect strong economic fundamentals." – Ben Bernanke – 2005
| | | Re: Righting Line for Blade
[Re: JJD]
#88312 11/22/06 04:23 AM 11/22/06 04:23 AM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
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Posts: 9,582 North-West Europe | I hate to write this down but at 78 kg and 1.70 mtr body length you should really be able to right the boat with good technique if you use a water bag.
Something went wrong, but I don't know what. Did you climb the rope when the mast came up ? If not then your buttock sink into the water and you are quickly losing weight. If you didn't climb up the rope and your buttocks didn't touch water at all then you weren't hanging low enough initially.
My advice now would be to take the boat out with a crew and do several righting efforts. The crew being there to hold the bow of the boat and help you out when righting fails. Try several things and see where the hang-up is. It may well be very educational to first try to right the boat together and see what works to speed up the righting itself. Most often these are the same points that will allow you to more easily right the boat singlehandedly. I think that experience does hep in righting.
Things I would try is.
-1- Unhook the mainsheet from the sail completely. Now the boom will point downward at the maximum angle and all shape will be gone.
-2- Hang lower, just above the water initially and when the mast comes up pull yourself up a little so you maintain your low position above water when the mast comes up. This trick seems to work well for me. Timing here is key. Wait to long and the mast stops. Climb to early and you may have to hang of the righting line longer then needed. If this is hard on your arms then use a small tackle
-3- Attached a proper bag (one that one rupture easily) to the righting line by its own line. Sits on hull hook on your trap harness and fill the bag. Then get into the water put the bag over your shoulder and push out again the hull. Now the bag is hanging off your shoulder and you've just doubled the leverage of the righting bag relatively to having it in your lap. Have a smaller line attach the bottom of the bag to the end of the righting line so you easy get the bag out of the water after righting.
-4- Also check if there is water inside your mast.
Again, somewhere something is going wrong and finding this is key. You should be able to right the boat.
Wouter
Last edited by Wouter; 11/22/06 04:32 AM.
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
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