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BRILLIANT!!!! Now THAT'S problem solving.
Nice. Kinda makes you wonder why it was so important to get past the bridge though.
Free wings at the Rusty Scupper Happy Hour!
Get the weights ma!
How does he get it over and how did he bring it back not to mention the fine tuning the heel just before going under? Some sort of water ballast system on either side of the boat? Can he use his prop power/motor to offset direction change of the keel and heel the boat while going straight? Which sailors know?
That doesn't look like Baltimore to me .Quote:
Originally Posted by Tippster
Did we just watch the same video?Quote:
Originally Posted by L7
Comprehension skills much?
Never done that to go under a bridge, but have done something similar to un-ground a boat. It goes something like this... Fill the sacks with water. Use either a small boat or dinghy or spinnaker pole to get the bags away from the boat (but in this case he probably just made a turn to swing them). Once underway, it's a matter of adjusting the lines from the cockpit and making small rudder inputs. He brought the sacks back by winching in the lines running from the cockpit.Quote:
Originally Posted by L7
Aside from nerves of steel, which this guy obviously had, you really want to be sure about your math.
I think that's the same music from 2-Girls-1-Cup.
Yeah, that's cool and all, but...
http://www.youtube.com/watch?v=jXHsNmQehr4
In and out of your marina/berth to open water.Quote:
Originally Posted by iceman
So he's going to do that every time he wants to go for a sail. Hmm. No.Quote:
Originally Posted by BirdRock
I'm sure there's a reasonable answer but that's not it.
If you look below your non answer you'll see someone actually able to comprehend the question and answer it probably because he has some grey matter. Apparently you cover for this deficiency by just slamming everyone else.Quote:
Originally Posted by doughboyshredder
Just to recap einstein, yes I watched the video and saw the weight off of the mast that KEPT THE BOAT AT THAT ANGLE. Some comprehension skills of your own would help you realize I wasn't asking how he kept that position but HOW HE GOT TO THAT ANGLE and kept a straight line. Thank god someone with a brain comprehended and didn't just pretend they knew something they didn't. Instead they did know and shared.
Brings back a hazy but funny memory of a sail out Ft Walton Beach at a parrothead party. Think maggots with funny hats. 'Captain' was a bit clueless on how carefully you want to follow channel markers. Sandstuck with tide going out. Got pulled out by a powerboat hooked to the main halyard at mast top. Could have gone way bad. Wasn't my card on the deposit, so I kept drinking, and am still.
Boat yard on the ICW- most boats can get under the 65 ft bridge, apparently this one can't.Quote:
Originally Posted by iceman
I guess they have one hell of a good boat yard to go through all that.
If you watch the video, they guy just steers the boat to get the bags back. It looks like he prolly did the opposite to get them there.
Think about this though. If those bags sink more than half way, he loses all that weight. They will be lighter in water, and the keel will pop the mast straight up. Makes you realize how big his nuts really are.
It's hard to believe his steering finesse is so refined he can fine tune the weight of the water bags against the weight of the boat. I can sort of see the steering now but from the perspective of a following boat it's hard to spot. Guess it would have been easier to see if filmed from the bridge or land.
The dropping the weight too low is a nice final touch in case it wasn't tense/exciting enough to do already. I wonder if his boat insurer approves the technique?
Sorry, I just thought it was obvious.Quote:
Originally Posted by L7
No it won't, it will equalize because as soon as it begins to pop out guess what, its out of the water and heavy again. There will be a little drag on the ballast in the water so it will pull it down a little fartherQuote:
Originally Posted by warthog
To get the boat back upright he used a rope tied to the upper bag. He pulled it towards the mast and the boat righted itself.
We sailed up the inland waterway one summer and encountered many odd bridges. Charts listed the bridge clearances, etc. and you had to sometimes be very careful to hit dead center at low tide.
In Georgia though, we came to a RR bridge, where an attendant came out of a little hut with a 6' bar. He then stuck it in a fitting, and started doing a circle around the center. Slowly the bridge swung to the side and after 10-15 minutes, we were able to pass cleanly.
He turned and then walked the other way as we continued. I kind of doubt that's still there, but it was very memorable.
My speculation would be moving the boat for the season, or delivery to a new owner.Quote:
Originally Posted by iceman
It'd be a hellava trip down the ICW with an 80 ft mast since the "minimum" fixed-bridge clearance is 65' at high tide (quotes because some bridges predate the mandate).
I'm amazed the mast doesn't snap with that kind of horizontal load being placed at the top of it.
^^^ they are remarkably strong, and there are stays (steel wires) that run from the bow and gunwales (sides) to add support. Even though the load of the main sail acts on the whole length of the mast, the load from the forward sails i.e. jib, spinnaker, etc., act on the the top (or close to it).
lolerawesomeQuote:
Originally Posted by Lurch
It is not exactly rocket science. All you need to do is add weight until the length of the lines holding the bags is 65', or less.
Steering is no different then when healed hard over in a strong wind. I would assume any semi-competent sailor could deal with this.
That video needs to be edited down to about 15 seconds.
Thats cool and all, but was I the only person picturing someone recklessly and badassly sailing that shit under the bridge in high wind with the boat keeled way over just from wind?
Yes .....Quote:
Originally Posted by leroy jenkins
^^ hey gapers .
That's called talent down in VA beach , under the bridge tunnel .
Just which Va. beach bridge tunnel would that be ????Quote:
Originally Posted by skiballs
The one VA beach , no fuck is no fuck .
The VA Beach Bridge Tunnel (Really called the Chesapeake Bay Bridge Tunnel - OSEC's point I think) is what - 15 feet above the water max? Shit, so is the Hampton Roads one. It's Causeway _____ Tunnel _____ Causeway _____ (Tunnel ___ Causeway - for Ches.Bay.Bridge.Tunnel)
WTF are you talking about? All you have to do is go over the 2 Tunnel sections!
He's watching the Skins and doing shots I think.
A little local knowledge ( is what ) gang .Quote:
Originally Posted by Tippster
22' cats at full sail under the bridge is fun .
Take video post here. It will be far more interesting than the vid that started this thread.Quote:
Originally Posted by skiballs
That sounds like a good story back at the dock. Definitely could have gone very bad. How was it you had no other lines or tow points to use?Quote:
Originally Posted by Tye 1on
I would assume any person on the internet calling out semi-competent sailors would know that it's spelled "heeled" not "healed" over. :wink:Quote:
Originally Posted by hutash
That and the other difference of steering 'heeled' over in a strong wind is the lack of that strong wind. Never seen a sailboat of any size under power, sails down heel over in the least while steering with rudder alone. Mind you I've never seen it done with several hundred pounds of ballast swinging from the top of the mast.
Cool video from 1:20 to 1:30.
The remainder was annoying as hell.
Fucking hell - you guys are skiers. You play with gravity. That's all the skipper is doing... Some of the comments in this thread are literally painful. Hutash is, I think, on the money though. Here's how it works.
The bags of water on the halyard are there to tip the boat over - that's obvious, right? The only tricky part of the manoeuvre is starting the boat heeling - naturally the keel just wants to keep it standing upright. My guess is they did something to push the dangling bags [heh Beavis] away from the yacht (probably push them out with a spinnaker pole, maybe only a boat-hook), creating a sideways force on the mast top that makes the boat heel. That sideways force is counterbalanced by the mass of the keel which is constantly trying to bring the boat upright again.
Anyway, as soon as the heel is significant enough those big, heavy bags of water try to pull the boat over onto its side; to control that happening they put lines around the bags back to a winch on the deck. Those lines mean they can control how far from the deck the bags swing, manage the force they exert (the further from the deck they swing, the greater the force they exert) and therefore how steeply they pull the boat over. If the boat heels too far they bring the bags closer to the deck, they exert less force so the counter-balancing mass of the keel brings the mast more upright.
The skipper needs to do some math to figure out the the heel required to make the boat fit under the bridge, the mass of water required to heel his boat over under control and, as Hutash menioned, the lengths of lines. The halyard needs to be short enough not to dump the bags in the drink when the boat heels, once you know that you can calculate the length of the line from deck to bags that indicates the boat is heeled correctly to fit under the bridge. There's a bit of turning force calculation involved, and some Pythagoras (sure, it's not a perfect right angle triangle, but it's close enough here). I learned that shit at junior school, as I guess most here did.
Gravity is predictable so the whole thing is fairly straightforward. Currents and gusts of wind could make things a tad more complex. Dumping the bags in the water wouldn't necessarily tip the boat over - but if badly submerged they might act like a drogue and pull the boat off course which could be an issue and if that got out of hand they'd likely pull the mast down closer to the water. Pretty easy to avoid by loosing the halyards if it all went wrong though. The steering would not be dissimilar to steering under sail.
I don't know fuck all about sailing, and had no idea if it was heeled or healed (I had a 50/50 chance and got it wrong,) but that was exactly my point, this was just a simple 7th grade prealgerba problem, not some in-depth "salt of the sea", "I've been sailing 50 years" kind of problem. The only real sailor question was how much weight cam the masthead hold, but I suspect an 80' mast underfull sail carries a fucken whole lot more stress and weight then those bags.Quote:
Originally Posted by BmillsSkier