Video of Jordan Series Drogue deployment... - Page 5 - SailNet Community

   Search Sailnet:

 forums  store  

Quick Menu
Boat Reviews  
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Hatches and Portlights
Interior And Galley
Marine Electronics
Other Items
Plumbing and Pumps
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here

Go Back   SailNet Community > General Interest > General Discussion (sailing related)
 Not a Member? 

Like Tree7Likes
LinkBack Thread Tools
Old 04-11-2012
Join Date: Apr 2012
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
theboilerflue is on a distinguished road
Re: Video of Jordan Series Drogue deployment...

Steve has a padeye welded to each of his stern bollards from which he uses a chain bridle and the JSD comes off that, the bollards are welded to the hull (below decks) and doubler plated at deck. They have a great blog at *|*

Originally Posted by Irunbird View Post
From -

Attachments on the Hull
The hull attachments for the drogue should be as far outboard and as far aft as possible. I have no information on the ultimate strength of a typical sheet winch installation, and it would be difficult to evaluate each structure. Unfortunately, a winch is not an ideal structure, since the load is applied above the deck line and tends to overturn the winch and pull it out. The optimum attachment for the drogue is clearly a strap similar to a chainplate, bolted to the hull at the corners of the transom and extending aft with a shackle.

For a load of 14,000 lbs, a strap ľ x 2.25 x 18 inches attached with six 3/8 bolts would provide a conservative design.

A large steel cleat would be acceptable if the deck is thick solid fiberglass and a steel plate is provided underneath.
Brent Swain likes this.
Reply With Quote Quick reply to this message Share with Facebook
Old 04-11-2012
Join Date: May 2010
Location: Arlington VA
Posts: 68
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 6
meteuz is on a distinguished road
Re: Video of Jordan Series Drogue deployment...

I don't think the separate retrieval line is a good idea. It might work if you are deploying the JSD for a quick lunch, but if left out for a while my guess is that the line would end up wrapped around the JSD anyway and when you pull it, you would still be pulling the JSD from the front, not the back. That must be why they have elaborate instructions for retrieving the JSD using winches on alternating sides. I have never used a JSD, but I am convinced that it deserves a spot in one's bag of tricks.
Reply With Quote Quick reply to this message Share with Facebook
Old 04-12-2012
Senior Member
Join Date: Jan 2012
Location: British Columbia
Posts: 2,412
Thanks: 19
Thanked 38 Times in 36 Posts
Rep Power: 4
Brent Swain is on a distinguished road
Re: Video of Jordan Series Drogue deployment...

I used 4 inch sch 40 pipe for the mooring bits on Silas Crosby, ran thru a 12 inch square , 3/16th doubler plate, to a point ten inches below decks , where I welded it on a horizontal piece of plate, which was welded to the transom. You can see this bit in the bottom of the picture, next to the chock. It has a sheer strength of 90 tons.
If there was a chafe problem , one could run a short length of chain around the bit, to take it clear of the hull, where the rope would be attached.
The Silas Crosby has a single aluminium door for a main hatch , which is extremely tough and resistant to any boarding wave. She is also a centre cockpit boat, which makes her even more resistant to boarding waves.
Altho I have never cruised in a boat with a reverse transom, those who have, said they invite, and even launch a breaking wave into the cockpit. The difference between a reverse and traditionally sloped transom is around 6,000 lbs of extra buoyancy in the stern of the boat with the traditional transom. Thus, a reverse transom may be the cause of waves ending up in the cockpit.
Being a steel hull, she has a fraction the structural worries of non metal boats.
She has since rounded the horn.
On a fibreglass boat a large stainless U bolt in the corners of the transom, with huge backup plates would be the best attachment points for a drogue.
With the drogue shackled on, thru hard eyes, there would be zero chafe.
I built my own parabolic drogue from salvaged seat belts ( free) , using a large mooring ball , about 5 ft in diameter , as a mold. I stapled the webbing in the shape of a half sphere over this ball, then sewed it later, while removing the staples.
A friend on a Fraser 41 , during the queens birthday storm off New Zealand used this type of Galerider drogue with good success. He kept having to shorten the rode to stop it from fouling the skeg, in the troughs, when the line went slack. When it was down to 80 feet , it worked far better, the rode stopped going slack, and they went to sleep til the storm was over. This saves one from having to carry a huge amount of line.
Boats with drogues from the bow tend to lie beam on, which is far less comfortable and puts far greater loads on the drogue and line.
Brent Swain, Boat designer, Builder, and author of "Origami Metal Boatbuilding"

Last edited by Brent Swain; 04-19-2012 at 09:03 PM.
Reply With Quote Quick reply to this message Share with Facebook

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Designing a Jordan drogue chainplate micheck General Discussion (sailing related) 1 03-07-2012 03:13 PM
Don Jordan and the Jordan Series Drogue sailingdog General Discussion (sailing related) 135 11-22-2011 12:53 PM
jordan series drogue kimberlite Gear & Maintenance 33 08-04-2011 10:14 PM
Jordan Series Drogue - Quality of construction. pdqaltair Gear & Maintenance 1 06-20-2009 12:31 AM
Jordan series drogue magnusmurphy Gear & Maintenance 23 05-22-2007 04:41 PM

All times are GMT -4. The time now is 07:40 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) LLC 2000-2012

The store is owned and operated by a company independent of the forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.