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05-23-2019, 09:46 AM
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#1
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Veteran Member
City: Noank, CT
Vessel Name: Merebeth
Vessel Model: 1987 Jefferson 42 Sundeck
Join Date: Mar 2018
Posts: 75
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DIY Dinghy Crane on sundeck
Hi all,
Has anyone added a crane to their sundeck themselves? I have an '87 Jefferson 42 and would like to store my dinghy on the sundeck hardtop when doing the Great Loop. I have been researching and see various placements and through roof and deck treatments as well as the stern version in the picture. I have a machine shop and welding so I don't see paying to have it made.
Anyone have any suggestions from doing it or using one? Also anyone have materials recommendations in the Ct & Ma area?
Thanks for your help!
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05-23-2019, 10:33 AM
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#2
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Valued Technical Contributor
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,786
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I think I would buy a ready made pipe davit from these guys: https://www.nickjacksonco.com/pipe.htm. Then build the base yourself.
David
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05-23-2019, 11:34 AM
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#3
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Guru
City: Seattle, WA
Vessel Name: Pau Hana
Vessel Model: 1989 PT52 Overseas Yachtfisher
Join Date: Aug 2012
Posts: 2,676
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A 2nd vote for Nick Jackson. Call him, and he’ll give you the correct advice.
__________________
Peter- Marine Insurance Guru at Novamar Insurance Group (206-350-5051) & tuna fishing addict!
1989 52' PT Overseas yachtfisher
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05-23-2019, 11:40 AM
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#4
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Guru
City: Gig Harbor
Vessel Name: Sandpiper
Vessel Model: Bluewater 40 Pilothouse Trawler
Join Date: Nov 2012
Posts: 2,315
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Quote:
Originally Posted by djmarchand
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I see many cranes on sundeck roofs. It's a long ways up there.
The weight of the tender will dictate the design of the crane and winch selection.
The swing radius of the arm is an important consideration for where the tender rests on the roof and the ability to clear the side, unless the arm slides in and out. Long arm reach will require stronger pipe.
Nick Jackson builds excellent cranes. So does Roskelley Olsson. They ar both in the PNW.
I've had Nick Jackson design and build two pipe cranes. First one was on 10 years until we bough a heavier tender. The second one has been on for about 10 years with no issues.
.
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05-23-2019, 11:49 AM
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#5
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TF Site Team
City: Seneca Lake NY
Vessel Name: Bacchus
Vessel Model: MS 34 HT Trawler
Join Date: Nov 2014
Posts: 7,828
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I'm not familiar with details of any of the crane options or your boat. I would only suggest considering air draft planning for the loop as it can preclude some of your routes.
I wonder if there are base options that would allow removal or hinged arms that would allow the arm to be hinged lower without major efforts.
__________________
Don
2008 MS 34 HT Trawler
"Bacchus"
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05-23-2019, 12:43 PM
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#6
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Senior Member
City: New Smyrna Beach, FL
Vessel Name: Mikala
Vessel Model: DeFever 48
Join Date: Jan 2019
Posts: 208
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Atkins Hoyle also makes nice DIY dinghy cranes.
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05-23-2019, 02:25 PM
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#7
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Guru
City: Longboat Key, FL
Vessel Name: Bucky
Vessel Model: Krogen Manatee 36 North Sea
Join Date: Oct 2009
Posts: 5,196
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Agree with above that air draft is a concern as is dinghy weight, lateral roof strength, placement, and standpipe base strength. I made my own from 3.5” aluminum pipe (no backbone) which swivels on a 2.5” solid bar aluminum standpipe, bushed by a half inch teflon tube. Cost was just under a grand, capacity is 500 lbs. Reach is 66”. If I had my own welding shop, I’d do my own, for sure.
__________________
Larry
"When life gets hard, eat marshmallows”.
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05-23-2019, 02:37 PM
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#8
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Guru
City: Gig Harbor
Vessel Name: Sandpiper
Vessel Model: Bluewater 40 Pilothouse Trawler
Join Date: Nov 2012
Posts: 2,315
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Low profile crane is an option if clearance is a issue.
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05-23-2019, 02:37 PM
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#9
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Guru
City: Longboat Key, FL
Vessel Name: Bucky
Vessel Model: Krogen Manatee 36 North Sea
Join Date: Oct 2009
Posts: 5,196
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Also have this one in my garage. Reach is 80” but it has a removable collar/pulley assembly so you can simply cut the boom to your length and bolt the collar back on. It will work with a 2.5” OD or a 3.5 ID stainless of aluminum standpipe (not included), depending on what capacity you need. Nicely welded, full backbone and winch saddle. $600.
__________________
Larry
"When life gets hard, eat marshmallows”.
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05-27-2019, 11:03 AM
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#10
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Veteran Member
City: Noank, CT
Vessel Name: Merebeth
Vessel Model: 1987 Jefferson 42 Sundeck
Join Date: Mar 2018
Posts: 75
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Thanks, where are you located? Trucking seems to be the expensive part.
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05-27-2019, 11:06 AM
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#11
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Veteran Member
City: Noank, CT
Vessel Name: Merebeth
Vessel Model: 1987 Jefferson 42 Sundeck
Join Date: Mar 2018
Posts: 75
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Quote:
Originally Posted by healhustler
Agree with above that air draft is a concern as is dinghy weight, lateral roof strength, placement, and standpipe base strength. I made my own from 3.5” aluminum pipe (no backbone) which swivels on a 2.5” solid bar aluminum standpipe, bushed by a half inch teflon tube. Cost was just under a grand, capacity is 500 lbs. Reach is 66”. If I had my own welding shop, I’d do my own, for sure.
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Thanks, yours looks great! That's what I'm thinking by the time I pay shipping vs just picking up tubing in Boston area.
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05-27-2019, 01:52 PM
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#12
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Guru
Join Date: Oct 2007
Posts: 22,553
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"Thanks, where are you located? Trucking seems to be the expensive part."
There are a number of snowbirds on this forum, why not ask who has room?
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05-27-2019, 03:25 PM
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#13
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Guru
City: Longboat Key, FL
Vessel Name: Bucky
Vessel Model: Krogen Manatee 36 North Sea
Join Date: Oct 2009
Posts: 5,196
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Quote:
Originally Posted by hpogue123
Thanks, yours looks great! That's what I'm thinking by the time I pay shipping vs just picking up tubing in Boston area.
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Well, if you do end up fabricating your own, better include a low profile hinge point. It’s already pretty high up there. Atkins Hoyle has manual pipe davits with pinned hinge points using cast knuckles. Could copy one.
__________________
Larry
"When life gets hard, eat marshmallows”.
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