Does anyone know what a "Williamsons Turn is?

[Medskipper]

Does anyone know what a \"Williamsons Turn is?

Just reading the safety at sea brochure that came with September MBM.

It states that if you have a man overboard, er sorry to be politically correct, person overboard! The best method for turning the boat so that it comes accurately back to the casualty is the "Williamson turn" You have to apply full lock until you have swung through 45 degrees then the opposite lock until you are moving along your original track!

Well I've been helming boats for a lot of years but I cannot quite get my head round this one! It says nothing about engines, stb frwd, port astern etc. I have not tried this on my boat yet, but I just cannot picture in my head how this can work?

Anyone out there got a better imagination than me? lets keep it clean lads!!

Barry


<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[boatone]

Re: Does anyone know what a \"Williamsons Turn is?

ask and ye shall be answered.....
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[Col]

Re: Does anyone know what a \"Williamsons Turn is?

Nice one Tone!!

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[Medskipper]

Re: Does anyone know what a \"Williamsons Turn is?

Well thanks for that Tony! But that site says 60 degrees! before opposite lock is applied!

I still cannot get my head round why the boat would not just turn away from the casualty when opposite lock is applied! oh well must try it when I am at the helm next time!

Barry


<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[boatone]

Re: Does anyone know what a \"Williamsons Turn is?

There is an interesting issue here regarding how boats/ships behave. My feeling/recollection (I'm going back 40 years or more here) is that the Williamson Turn was developed as a method for large displacement vessels whereby the rate of turn etc would achieve the desired objective of returning to the point where the person in the water parted company with the ship. I seriously wonder if it would hold good for planing vessels which would be likely to experience very different sideways drift forces. There was also the not to be ignored assumption that action was taken promptly to execute the manoeuvre as soon as the mob took place - a somewhat unlikely scenario unless someone actually witnessed the fall !

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[Medskipper]

Re: Does anyone know what a \"Williamsons Turn is?

oh of course! its just sunk in through the half bottle of red plonk I have consumed!
I was trying to make it too complicated! Doh!

Barry



<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[jon_bailey]

Re: Does anyone know what a \"Williamsons Turn is?

This is how I was taught and it is straightforward and does work. Try chucking a fender overboard and then going from there.

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[Medskipper]

Re: Does anyone know what a \"Williamsons Turn is?

Yep, It does qualify the statement by saying it might not be suitable for planing boats. Well done.

Barry

<hr width=100% size=1>I just want to retire with my boat to the Med!

 

[powerskipper]

Re: Does anyone know what a \"Williamsons Turn is?

It does work on plaining vessels. /forums/images/icons/wink.gif

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Julie

 

[Lozzer]

Re: Does anyone know what a "Williamsons Turn is?

As an RYA Cruising Instructor I teach this week in week out. It definately works on planning vessels.

In fact it is such a good method that to prove to one of my pupils how good it was I did it blindfolded. We returned and was STOPPED within 10 feet of the casualty. (to my amazement as well).

As soon as person falls in turn the wheel to the side they fell, hold the wheel over until you hit an angle of about 60 degrees, continue for about 5 second or 100 yards, then turn the wheel hard the opposite way until you come around and face down the line of your previous track.... Then just adjust your speed for coming alonside the person. Remember you must be stopped with engines in neutral and upwond of the casualty.

The way I knew I was close was because I felt when I went over my track.

Try it sometime.

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[beachbum]

Re: Does anyone know what a \"Williamsons Turn is?

As I understand it, the exact angles (45deg, 60deg or whatever) and timings vary from vessel to vessel. With ships, where I believe the technique was originally developed, the optimum values are established during the initial sea trials, and subsequently posted somewhere on/around the bridge.

<hr width=100% size=1><font size=1>Nobody is perfect.
I am nobody.
Therefore I am perfect.</font size=1> /forums/images/icons/wink.gif

 

[Talbot]

Re: Does anyone know what a \"Williamsons Turn is?

The whole point of the williamson is that it is designed for helping to find someone who may have fallen overboard some time ago. it is supposed to take you exactly back onto your previous track, and that you then follow the reciprocal of your previous course until you find your swimmer

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[boatone]

Re: Does anyone know what a \"Williamsons Turn is?

Dont disagree with you at all but it does presuppose that you have not altered course in the interim. On a deep sea ship on passage this may well be the case but it may not be so on a fast mobo out for fun.....

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[Talbot]

Re: Does anyone know what a \"Williamsons Turn is?

difference being that you are less likely to know someone has gone for an unauthorised swim in a big ship, and thus need to be able to backtrack. I would like to think that you might hear/notice someone going missing from a family boat .

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[Renegade_Master]

Re: Does anyone know what a \"Williamsons Turn is?

We too teach this method each week it works. Where do you teach by the way Lozzer?

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[BarryH]

Re: Does anyone know what a \"Williamsons Turn is?

Depends who it is. Theres a few people I know that I wouldn't mind going for a "swim"

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[claymore]

When I did my RLSS bronze

We were taught the Silvester-Brosch and when I tried it out on my 'partner' he had a bit of a turn
Now 'Partner ' in this instance referred to the person in the lifesaving class who I was paired off with - this was around 40 years ago and so I felt I should explain in case anyone got the wrong impression
Hope this helps

<hr width=100% size=1><font color=purple>regards
Claymore<font color=purple>
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[Doffy]

Re: Does anyone know what a \"Williamsons Turn is?

Hard over keep power on and you will come round to your wake which will be still bubbling, stop and adjust boat to pick up casualty in the easist manner for your boat the wash line can be seen for hundreds of yards astern. you can then run down line if needed to find MOB, taking a heading when on line, PLUS hit MOB on GPS.

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[Lozzer]

Re: Does anyone know what a "Williamsons Turn is?

Doffy

You are talking rubbish.... At night or in fog how do you know if you are in front of where the person fell over or behind. You also do not mention that you should put the boat up wind of the casualty so that the boat is blown onto the person in the water rather than away from it.

Agree with hitting the MOB button but then you are assuming that people have GPS, not always the case.

Still how you do it is upto you the most important thing is to get the person back on board safely.

If you want to do the right thing do the Williamson turn.... go to any authorised RYA teaching establishment and this will be the method. Do your ICC assesment and this is how you will be expected to do it safely.

Safe boating and I hope nobody falls over with you at the helm.


Suncoast - I teach on the Costa Del Sol....


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[ribrunt]

Re: Does anyone know what a \"Williamsons Turn is?

Lozzer - put boat UPWIND of MOB? funny that....I've always learned and taught you approach from DOWNWIND to maintain control in the approach...

Powerskipper - any thoughts...?

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