Anybody remember high school physics/

We have 2 guys at our locale lake that have made their own system using an 8' 2x4. It's been notched to fit under the lip of the bottom hull and tied to the upper front corner for support. They carry it on the front of the boat just in front of the pylons. When they tip over, they just untie the 2x4, stick it in the lip, tie the top and walk out on it. both guys are about 160lbs. When the boat is righted, they just tie it back on the front and go sailing again. One sails an 18 and a 16 so he can take it out on either boat, the second guy has a 17sport.

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Buxton
18' T16 Silent Lightning (16' T2 Hybrid)
11' H16 White Lightning
79' H16 Green Lightning

Didn't somebody sell a righting pole system that had a head similar to a shovel to fit under the hull lip, probably with lines fixed to each hull? Being able to increase the righting moment with a longer lever arm- and smaller weight- seems to trump the use increased weight via water-filled bags to me. A CF lever (like a 2pc windsurf mast) would be even better than a 2x4 if you could afford it. Note: One also needs to be able to climb/hang out to the end of the lever
So... who's going to say this is all 'physically' impossible?

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Raise your sail one foot, and you get ten feet of wind.
起你的一只帆，和你10英尺的。 -- Chinese Proverb
William D. Latinette @ Latrobe, PA, USA w. H14 Turbo X 2... [email protected]

160lb guy rights his 18 for under $5.00

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Buxton
18' T16 Silent Lightning (16' T2 Hybrid)
11' H16 White Lightning
79' H16 Green Lightning

Bear in mind that this comes from a guy who has NEVER righted my cat yet...(I have only had it out a couple times!), but I do have a fairly solid engineering background.

It seems the easiest way to right it would be to have an 8' aluminum or PVC or wood pole that fits on the lower lip of the lower hull with a line attached up to the top hull. You want the length of that rope to allow the pole to be about 30-40 degrees up from the water. Also, have the same or a different rope hang straight down to the water from the end of the pole with some knots in it. Position yourself under the end of the pole and start climbing the rope. That way you have the majority of your weight almost 8' out, and you will see the upper hull coming toward you so that you can get out of the way and not get hit on the head.

Does anyone who has actually done this think that sounds like it should work fine?

You want to keep the pole less then 45 degree angle just to keep the weight out farther. If you feel you can't climb a rope hand over hand, just use a rope ladder hanging down and climb that (for us older guys!)

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Steve
2017 Hobie 16 "Cayman" sails 114795
1985 & 1973? Hobie 14 "Sea & Ski"

Steve,

You mean like this:
[youtube]http://www.youtube.com/watch?v=hCbihZsXESg[/youtube]

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Marc...
1978 Hobie 16 Keoke, sail# 36 84

If you mean <45deg so that when the boat pivots on the bottom hull you will have more rotation before contacting the water- or being smashed by the upper hull coming down- that sounds about right.
So the beam would have one (shorter) line connection to the upper hull- maybe at the shroud reinforcement- and another at the extreme end to (hopefully) climb/hang. Sounds feasible to me.
The one I remember that may have been marketed had a 'shovel-like' end made of strong lexan to fit the lower hull lip. (Gary Friesen Solo~Right in video?)
Would be most desirable for the overall tool to float possibly by using high-strength polypropylene line and a sealed or foam-filled aluminum pole.
If the lexan end had large enough area it could also be used as a giant paddle in emergencies.
Sounds like some items for my next trip to Lowes...

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Raise your sail one foot, and you get ten feet of wind.
起你的一只帆，和你10英尺的。 -- Chinese Proverb
William D. Latinette @ Latrobe, PA, USA w. H14 Turbo X 2... [email protected]

Keep in mind that the righting pole is only useful when the boat is on it's side. If you happen to go turtle and don't have enough weight to bring the boat up onto it's side, then the righting pole is useless.

sm

Yes, that video is pretty similar to what I was thinking, only using a longer pole and hanging from the underside of it instead of standing on it.

You would need to have it sturdier to stand on it (actually, just while walking out on it). If you just hang from it, all of the force is compression, so it can be pretty light weight.

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Steve
2017 Hobie 16 "Cayman" sails 114795
1985 & 1973? Hobie 14 "Sea & Ski"

It seems to me that the problem of going turtle can be ultimately prevented by utilizing some of the solutions discussed here- http://www.hobiecat.com/forums/viewtopic.php?f=9&t=38292&hilit=flotation - unless someone feels that they are too good a sailor to use them... or they are too uncool for them.
Likely anyone considering these righting tools would not be in that category.
In addition, turtle-ing is involved in a low percentage of normal upsets- and I think shouldn't prevent planning ahead for the more likely situations.

So a fix for an 'underweight' crew if 'turtled' would be what?
I know there is technique involved but I believe that there may also be an application for a large lever arm... Archimedes: ΕΛΕΓΕ ΔΕ ΚΑΙ ΔΩΡΙΣΤΙ ΦΩΝΗ ΣΥΡΑΚΟΥΣΙΑ, “ΠΑ ΒΩ ΚΑΙ ΧΑΡΙΣΤΙΩΝΙ ΤΑΝ ΓΑΝ ΚΙΝΗΣΩ ΠΑΣΑΝ.” [Original Doric for scholars... but you know what it says]

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Raise your sail one foot, and you get ten feet of wind.
起你的一只帆，和你10英尺的。 -- Chinese Proverb
William D. Latinette @ Latrobe, PA, USA w. H14 Turbo X 2... [email protected]

I'm not trying to diss on the righting pole, I was just pointing out the fact that it will not help you if you go turtle.

If you have a mast float and a righting pole, yes, you're probably OK. But just keep in mind that if you only weigh 160lbs and you're sailing a Hobie 16 solo with the expectation that you can right the boat because you have a righting pole then you better also consider the fact that if you go turtle, the likelyhood of getting the boat back up is nil.


Righting water bag, extra person, smaller boat.

By the way, I'm way too cool for a bob or a righting pole...just saying.

sm

I understand and I'm researching discussions on turtle-ing for edification...
Somehow, I could predict that...
I look forward to the time when I have such confidence (חֻצְפָּה?) in my ability to operate these craft...

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Raise your sail one foot, and you get ten feet of wind.
起你的一只帆，和你10英尺的。 -- Chinese Proverb
William D. Latinette @ Latrobe, PA, USA w. H14 Turbo X 2... [email protected]

Only if the pole bisects the angle of the righting line. It has to be stiff to avoid going out of column. An old windsurfer mast works pretty well. (So I'm told - like srm, I'm too cool for righting devices / mast floats )

If I had only cataloged my photos better from around 2006 or so...
Maybe the coasties took some?

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Sail Revolution
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