Passing sailing and moored boats.

Searush said:
Incidentally, in case anyone thinks I am anti-MoBo, I always acknowledge MoBos as well as Raggies when out (not all reply - of either persuasion) and I always thank MoBos that do slow down - and there are many that do. I also enjoy the company of the N Wales crowd - most of whom are MoBo'ers.

It is just that when it does happen, the consequences can be quite severe, hot water spilled, people loosing their balance and falling over, or against hard edges, I have been knocked off balance furling sails on the cabin top & was only saved from going over the side by grabbing a shroud as I went down. We have also been swamped in a hard tender - with two small children aboard - I ask you, would you like to be responsible for doing that?

So PLEASE, get to know what your boat does by observing what happens behind you. If everything in your wake is bobbing like mad - you are causing severe problems for your fellow boaters.
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Last weekend, again, me and mam loaded dinghy, going to the pile mooring, up the channel comes a blue flybridge ******, full of anglers, the wash was that severe the wash was breaking!
I dodged around the back of Sacha and got mam on the sugarscoop, then I flung myself over the bags and waited for the inevitable, i shouted at him to slow down, ignored until he was way past me. His angling mates were laughing their heads off, I got soaked but aved the bags. His mate on the bridge was laughing his socks off. I reported him to the marina, I thought he was a licensed fishing boat. Turns out he is a berth holder and takes a "few of his mates out fishing" private vessel, not licensed, hmmm. Advised to report him to the HM. Idid for what its worth.
Stu
 
skipper_stu said:
Last weekend, again, me and mam loaded dinghy, going to the pile mooring, up the channel comes a blue flybridge ******, full of anglers, the wash was that severe the wash was breaking!
I dodged around the back of Sacha and got mam on the sugarscoop, then I flung myself over the bags and waited for the inevitable, i shouted at him to slow down, ignored until he was way past me. His angling mates were laughing their heads off, I got soaked but aved the bags. His mate on the bridge was laughing his socks off. I reported him to the marina, I thought he was a licensed fishing boat. Turns out he is a berth holder and takes a "few of his mates out fishing" private vessel, not licensed, hmmm. Advised to report him to the HM. Idid for what its worth.
Stu
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Well, there will always be the occasional knobhead, the bahaviour of the brainless and totally selfish will never change, whether it be boating, driving or in any other walk of life. You can only try and avoid them as best you can.

Course, you could always take a few of your mates round for a visit.
 
AllanJ said:
First; There does seem to be a divergence of opinion (surely not in THIS forum) as to whether a planing boat produces less wash than the same boat not planing. I understood that the reason for planing was to minimise the amount of water displaced, which must surely be related (although perhaps not linearly) to the amount of wash.
Second; how much bobbing is unacceptable? Some wash is inevitable. I know that this is not an exact science, but I would appreciate guidance - my common sense may be different to yours.
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The acceptable amount of wash depends on the impact it has on the slow moving or moored vessel. If your wash height is the same as the freeboard of a dinghy (which may be as low as 6" in a harbour or similar sheltered location) then it will be dangerous to that dinghy. That is why most harbours have a 5kt max speed (clue!!)

A yacht with no sails up (maybe moored or motoring & may have people below cooking, or on deck dealing with sails) reacts badly to wash. The lack of sails & the effect of keels creates a violent reaction to wash. You will see such vessels whip rapidly from port to stbd & back several times - this motion is what makes the wash so dangerous.

If a yacht is sailing closehauled, she will be heeling under the force of the wind, the impact of wash on it will be FAR less than normal due to the stabilising effect of the sails. If sailing downwind, wash can cause the boat to be thrown off course by 10-15deg - enough to cause an accidental gibe which is also very dangerous, but most (not all) yotties should be skilled enough to know this & steer accordingly to meet your wash.

Hope that helps, but MOST IMPORTANT of all, be aware of how your wash is affecting others. We are not talking "annoying" here, we are talking DANGEROUS & if the impact of your wash is throwing boats about you are going too fast for the conditions.

I have to say it is very encouraging that this thread has people asking "how much is too much", because it means that you are thinking about the issues. Most of the culprits that I have seen either don't know or don't care - sometimes both. The other victim's comments on here seem to reflect my experiences quite accurately. I have to say it doesn't happen that often, but it does happen & everyone on my boat will cry "Wash" loud & clear if there is any risk & so that everybody is ready & holding on tight.

Sorry, that post turned out a bit longer than I intended:rolleyes: :D
 
Purely from personal experience the faster a MoBo goes the more and deeper wash it creates and worse offender appears to be the big older " house brick" tubs such as the Turbo 36.Last weekend while at anchor one came past causing some blimming great waves,while a few moments later a squadron 50 something or other travelling at the same speed produced half the excitment.Suspect that hull shape has a lot to do with it.
 
It really does depend on the hull, at cruising planing speed, the hull on my twin stepped would have very little of the hull in the water, as it was designed that way for speed. If the hull is largely above the water, rather than pushing through it, then at speed it displaces very little water, and creates less wash than at lower planing speeds where the hull is actually displacing more water. Most mobos don't have that sort of hull though.
 
I too have observed that some fast moving boats do have very little wash, but the simple thing is look behind you at what is happening to the moored & slow moving boat to see what YOUR wash does at various speeds. It IS that simple. You will learn how your hull behaves very quickly & can travel accordingly with minimal on your fellow boaters.
 
Searush said:
I too have observed that some fast moving boats do have very little wash, but the simple thing is look behind you at what is happening to the moored & slow moving boat to see what YOUR wash does at various speeds. It IS that simple. You will learn how your hull behaves very quickly & can travel accordingly with minimal on your fellow boaters.
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Think that's what i said in post #2 lol

I reckon i've got it somewhere close to right, the raggies i pass have all their fingers up as they wave, not just one :)
 
BrendanS said:
It really does depend on the hull, at cruising planing speed, the hull on my twin stepped would have very little of the hull in the water, as it was designed that way for speed.
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Wow Brendan, a twin stepped boat!
Did I miss a "My new fast toy" thread lately, or what? Do tell.
 
Seahope said:
Now Searush I seem to remember a thread in another forum when you said that MoBo owners had half a boat :p
(snip)
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Well, do you have 2 masts, booms, rigging & 4 sails like me? Or just the bottom half - hull, deck & engine?:D In fact, I am happy to accept that I only have half a boat compared to a Catarmaran, so yours might only be 1/4 of a boat.:rolleyes:

Lots of people are happy with half a boat, or less, it's still better than no boat at all. And I won't hold it against you . . .
 
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