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emichaels
03-22-2007, 02:15 PM
Can anyone post some pics or drawings of a cradle design or build. Something that might be appropriate or adapted for a full keel boat about 4300# 21' long 3' draft.

Eric

rbgarr
03-22-2007, 03:01 PM
There are a number of different articles from old WB issues about cradles. If you do a search of the WB index you may find a specific article with drawings that you'd like to have.

TerryLL
03-23-2007, 12:58 AM
See WB 69, p. 86-93.

The best, Terry

George Ray
03-23-2007, 05:50 AM
Note that the supports carry very little weight when the boat is upright.
I am in the process of building upright drying out, careening legs for my 13T full keel boat and engineering and instinct are at odds. I have a local sheltered hard sand beach that has a slope that matchs the drag of our boats keel. That helps!
The single leg careening pictures are from the website of a firm in the UK that manufactures those legs. I have misplaced the URL.

http://www.imagestation.com/picture/sraid225/p23f33def14703fa243734dec73f4dd90/ea379f24.jpg
http://www.imagestation.com/picture/sraid225/p786ceefff8af4c4b412b34197acf2c5a/ea379f11.jpg
http://www.imagestation.com/picture/sraid225/pe9040a5c60fb5becea0ed09645181b44/ea379ef0.jpg
http://www.imagestation.com/picture/sraid225/pcac73c18d6038a42ec591ae649a8c462/ea379eee.jpg
http://www.imagestation.com/picture/sraid225/p0f2f249d7951329be2bd1248f5427632/ea379c28.jpg
http://www.imagestation.com/picture/sraid225/pd47c1f4fa89df56c4e30d9a5fe518615/ea379c27.jpg
http://www.imagestation.com/picture/sraid225/p3d125b10b8569d46c0beb9b1a952f8ec/ea379c25.jpg
http://www.imagestation.com/picture/sraid225/p48eb3969d3946c2938a478609527ac2a/ea379c23.jpg
http://www.imagestation.com/picture/sraid225/pb3ac03d4951442b78b983682a3977ce6/ea379c21.jpg
http://www.imagestation.com/picture/sraid225/pc2c655f82728e5782b87112b8d834132/ea379c1f.jpg

StevenBauer
03-23-2007, 06:04 AM
Eric, I just bought the set of 7 from Craigslist. (Thaks, Dave:)) I might just use four, so I might have three you could use. If you found one more you could build a cradle like the one in the second pic above.

Steven

Andrew
03-23-2007, 06:43 AM
George, is that bottom picture of a Tahiti Ketch?

alkorn
03-23-2007, 06:58 AM
Can anyone post some pics or drawings of a cradle design or build. Something that might be appropriate or adapted for a full keel boat about 4300# 21' long 3' draft.

Eric

Paul Gartside sells plans for beaching legs.
http://www.gartsideboats.com/catsail3.php#legs

Thad
03-23-2007, 07:17 AM
There's a picture in the Herreshoff of Bristol book (p78) of a wheeled carriage being used to move a Bar Harbor 31. It was interesting seeing that picture to see how close together and deep under the hull are the poppets. Got us thinking, especially about the deep placement. The hull (except perhaps in the way of bulkheads) is not built to take concentrated loads like the poppet head, but low on the hull under the floors is much better than higher up. Also, since half the weight of the boat is likely in the ballest with more weight in the backbone structure, the low placement will look unbalanced but isn't. George Ray's note about weight is correct, but when moving the boat and cradle about, load on the poppet will be considerable so angling and bracing the poppets to accept these loads is important. Without screw heads cradle poppets are normally finished with wedges, allowing for adjustment and painting under (one at a time).

George Ray
03-23-2007, 08:18 AM
The last photo of my previous post was labeled/named Tahiti Ketch when I copied from the web. Don't remember what site it came from.

S/V Laura Ellen
03-23-2007, 09:51 AM
Can anyone post some pics or drawings of a cradle design or build. Something that might be appropriate or adapted for a full keel boat about 4300# 21' long 3' draft.

Eric

I designed and built mine for Laura Ellen based on the cradles built by the Marine Cradle Shop http://www.marinecradleshop.com/.

emichaels
03-23-2007, 12:26 PM
George those are some really serious cradles. Which looks like a very good idea. Welding some up would be a quick solution. Looks like they would be more than stout enough if you had to drag the boat around a little while in the cradle.

This may be a really stupid question... but here goes. When a marine trailer is going to slip under the boat to set it , how do you deal with the cradle. Or is the answer obvious in that the cradle is replaced with some sort of outboard support temporarily, such as boat stands.

Steven I saw those stands you bought on CL and I think they will be to tall for the Alden. I need to find something comfortable around 42".

Eric

emichaels
03-23-2007, 12:28 PM
Paul Gartside sells plans for beaching legs.
http://www.gartsideboats.com/catsail3.php#legs


I have seen those plans Gartsides is selling. I was wondering just how the upper end of the leg is secured to the boat.

Eric

Andrew
03-23-2007, 02:33 PM
...When a marine trailer is going to slip under the boat to set it , how do you deal with the cradle.
Eric

One solution is an articulated trailer with a tuning fork like bed and hydraulic lifting/support arms. These usually lift the boat off of individual stands, so you would put the stands in place then remove the cradle if it interfered with the trailers access.

A big ol' crane is another way.

DLW
03-23-2007, 02:40 PM
http://img85.imageshack.us/img85/8603/img0182am0.jpg

Thad
03-23-2007, 05:06 PM
Big but good. The Alden doesn't need but 2 poppets each side and it's good to support the forefoot. Don't attach to the huil, wedge. The wedges need nails from the timber for hauling, but want to be moveable for working, painting, adjusting. Form nails work.

George Ray
03-23-2007, 05:10 PM
1963 Pearson 'Commander' , 26', by Carl Alberg (8' cockpit) // The sister ship design 'Ariel' had small cockpit and bigger cabin. The bigger 28' cousin 'Trition' is my favorite of this alberg model. (google: 'triton,atom,james baldwin')
Designed for an Atomic_4 inboard. The outboard well model has rudder and hull had fairing plugs and lead pig ballast glassed in place of the engine.
*********************************
Fixed up free boat years ago:
http://www.imagestation.com/picture/sraid225/pd3b3d00072329e0bdb0f996275f0b5ec/ea367a8a.jpg
Years later and a 1000miles away lets see if see looks worth throwing her into the yard to give her a new life.
http://www.imagestation.com/picture/sraid225/p9a5c8afa94a5337d61f0065b57fcdba8/ea367a73.jpg
OK, lets pay $1000 and keep her.
http://www.imagestation.com/picture/sraid225/pf4124cd37f519f1dcbdb341c5fbe8059/ea367990.jpg
http://www.imagestation.com/picture/sraid225/p3aadbca0e47609ded4b184637ca0db9a/ea36797f.jpg
http://www.imagestation.com/picture/sraid225/p3921e27459c83cd425ab5be1fc077a16/ea367968.jpg
http://www.imagestation.com/picture/sraid225/p038eb3bc805f9ea1e02be0d5b7d6437b/ea367942.jpg
http://www.imagestation.com/picture/sraid225/p7b67ed1e80a242cddf4aafd0a222905c/ea367925.jpg
http://www.imagestation.com/picture/sraid225/p29c01c48bf17af7e34094cdf7269b5b1/ea3678d3.jpg
She sat for a few years and when I gave her away with all the stuff to make her go, I warned the new owners that it was a lot of work and not cheap. Don't think anything good has happened to her since they $PAID$ to have her hauled off.

Ron Williamson
03-24-2007, 05:49 AM
Why do people insist on using hollow concrete block to hold boats?
It gives me the creeps.
R

JimConlin
03-24-2007, 08:43 AM
In the current issue of Professional Boatbuilder, there's an article about building composite form-fitted cradles.
http://www.proboat-digital.com/proboat/20070405/

Gary E
03-24-2007, 09:40 AM
Why do people insist on using hollow concrete block to hold boats?
It gives me the creeps.
R

One advantage is that using them can make more work for repair people.

Mad Scientist
03-27-2007, 04:05 PM
I have seen those plans Gartsides is selling. I was wondering just how the upper end of the leg is secured to the boat.

Eric

Check out Paul Gartside's article in WB #179. It also includes a procedure for beaching.