grounding legs

[mtb]

I need to start considering this job so by the time I get around to it I'll have it sorted in my mind.
At the mo I'm considering making four out of 6"X6" steel box section these to be on, for want of a better term swinging plates so the legs can be pinned, in up or down position.
I've only seen one picture of a Brixham trawler using legs but could not see the arrangement around the gunwales .
Danbrit has 9ft draft and having talked to a fella in the know was told as I suspected that she'd not take the ground with out going hard over !!. I wont use her for playing out in The Wash and beyond until I sort this major concern .

So has any one done work like this or got pictures they could share oh and while I'm at it I could do with some practise re calking so if any one is about to do some and wants free help let me know .
Cheers
Mick

<hr width=100% size=1>smile you'l be on your boat soon ;-)
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[rich]

Most boats in jersey, including big fishing boats, have legs because the harbours dry out - i have them on hermees. you definately only need 2 - will get SWMBO to type more details tomorrow.

<hr width=100% size=1>rich )

 

[BrendanS]

not beefy enough for your boat, but this may give you some ideas <A target="_blank" HREF=http://216.239.51.100/search?q=cache:JyuQEVbMrPAC:www.sailnet.com/collections/articles/index.cfm?articleid=baldwi0010+drying+out+legs&hl=en&ie=UTF-8>here</A>

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[tcm]

Re: grounding leg ideas

i like the idea of being able to take the ground - but not the idea of legs- they seem so rickety, with little lateral rigidity. Much better to have a lateral piece somewhere surely, holding the two legs at the right distance together/apart.

But beter again would be some means of getting the support to be taken from the base of the hull. It could be all clever, but a simple decent log and wedges hammered in would improve things. A hole through and a line allows these tio be retrieved as the tide returns.

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[Moz]

Hi Mick,
ive got loads of caulking to do and could use some help, you can also come and take the Kelvin while your at it.
I also need to reconstruct a pair of legs for my boat but luckily I have the originals to go by.
Cheers for now,
Moz...............

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[mtb]

Sounds good to me .I shall be available after next week
Pm or email .
boats@ntlworld.com

cheers
Mick

<hr width=100% size=1>smile you'l be on your boat soon ;-)
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[mtb]

Yes your right quite useful.
Cheers
Mick

<hr width=100% size=1>smile you'l be on your boat soon ;-)
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[mtb]

A few pictures would help of the actual fixing to the hull side.
I wont be making them out of wood as I know they'll get lots of use.
I will set the lower legs at an angle of about 15 degrees with feet which allow for variations of bottom.
The mechanism to adjust the height is still at the thinking stage because of the problem of salt corrosion causing things to seize, but I had thought along the lines of using acro props at the top of the legs.
The side plates which will hold em will be quite large across two frames , and should take care of any possible splaying in or out .

As I say this is still the thinking stage so all opinions welcome .

Cheers
Mick

<hr width=100% size=1>smile you'l be on your boat soon ;-)
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[jleaworthy]

I did this job on a 26' Maurice Griffiths Bawley - a much smaller boat than yours. Like you plan to do I used rectangular hollow section steel - 4"x2" in my case - with the larger dimension thwartships. The attachment to the hull was through a skin fitting fitted through the hull and beam shelf (or gunwhale) with blocking between hull and beam shelf continuing downwards for about four planks. I used marine ply of right thickness and nailed and rooved it to the planks. I drilled through the RHS to give the right angle for the half inch studding to pass through the skin fitting and welded the studding into the leg. With chocks shaped to fit the hull and fastened to small brackets on the legs the load on the hull was never a problem. As a useful touch I welded small steps to one of the legs and plates on the bottom finished the job. I made no attempt to have the legs pivoting.

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[mtb]

Thats all useful stuff . I wont be fixing through the hull but will take the load by using steel plate . How far I go at this point I dont know . Did you not suffer re drag on the legs .

cheers
Mick

<hr width=100% size=1>smile you'l be on your boat soon ;-)
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[jleaworthy]

I only fitted the legs when drying out so I don't know what the drag would have been like on the mooring with a strong ebb running, sorry.

John

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