Acquiring A Ready Made Series Drogue

[Davidhoy]

Originally Posted by Dockhead

According to the inventor, Don Jordan :

"
"The increased stretch will not reduce the load, in a breaking wave strike. In fact it will increase it a bit. The drogue must pick up the load quickly before the boat broaches and must turn the boat into the wave. The cones near the boat perform this function and THE LESS STRETCH THE BETTER [emphasis added]."

As quoted in this forum some years ago by CarinaPDX.

Told you I wasn't an expert ;-). Thanks for looking this up!

[Dockhead]

Originally Posted by foojin

What would a suitable dyneema weight be for a JSD of, say, 132 cones?

We have a JSD we built for our last boat. Never used. Weighs a ton. Now has to be lengthened a bit for our new boat, but I might remake it.

Well, you size it according to the load specification and SWL of the rope. Strength for strength, Dyneema is far lighter and more compact.

Cost was the main issue, but this new stuff Seaworthy Lass found seems to have addressed that.

[familysailing]

I have OCEANBRAKE Series Drogue, designed by Don Jordan, 30,000 lb (13,600 Kg) Series Drogue with 156 cones for our Lagoon 380 catamaran. we have dual bridles. it has never been deployed in our circumnavigation 2013-2016. we are in st Augustine, florida, usa. it cost $125 to post it from the uk to us in 2013.

please let us know if you are interested
tim and tracey ramsey
s/v folie a deux

[kmacdonald]

Originally Posted by akshiena

A tractor tire with 200 ft of Nylon is a suitable drogue, just make sure whatever is the end load point can take your displacement , ...the loads will be large

Delivery of a 60n ft cat from Perth to Melbourne, no, I won't be doing that again soon....

Just wondering where you store a "tractor tire"?

[Emouchet]

The Galerider Drogue is in the same price range, but takes much less space for storage:
http://www.landfallnavigation.com/galerider-48.html

[Pete7]

There was a post on here a while back from someone who had used a JSD. They reported that the cones started to quickly fray because the sewn seams on the cone edges were wrong way and liable to fray in the water flow.

Dockhead, whilst a JSD is probably the well known variety, are others an option?

Which drogue should you buy? - Practical Boat Owner

[kmacdonald]

Originally Posted by CaptJamesCook

I would recommend everyone should read the mooring and anchoring page Jordan Series Drogue - Mooring and Anchoring on the Jordan drogue web page...http://www.jordanseriesdrogue.com
I would call it "Things you may never figure out on your own"

Or maybe it is just my lack of knowledge That made reading it so important!~


PS thank you sailnautilus

Yep. Anchoring from the stern can be the best option for some sailboats in some conditions. I've been saying it for a very long time and get trashed every time I do. Glad to see someone else post a link advocating it.

[Pete7]

Originally Posted by Pete7

There was a post on here a while back from someone who had used a JSD. They reported that the cones started to quickly fray because the sewn seams on the cone edges were wrong way and liable to fray in the water flow.[/url]

Edit, it was Morgans Cloud that reported the frayed cones:

https://www.morganscloud.com/2017/03...lity-problems/

[Dockhead]

Originally Posted by Pete7

Edit, it was Morgans Cloud that reported the frayed cones:

https://www.morganscloud.com/2017/03...lity-problems/

That's behind a paywall. Maybe you can summarize the problem with the cones?

[Matt Johnson]

We have the same issue with the frayed cones on our Sailrite kit Jordan drogue. The builder just cut the cone with a hot knife and rolled over the edge for sewing (per the instructions). A few cones in the first 100' section have frayed edges... that is why the OceanBrake version is so nice. Much better built cones.

Matt

[Dockhead]

Originally Posted by funjohnson

We have the same issue with the frayed cones on our Sailrite kit Jordan drogue. The builder just cut the cone with a hot knife and rolled over the edge for sewing (per the instructions). A few cones in the first 100' section have frayed edges... that is why the OceanBrake version is so nice. Much better built cones.

Matt

That's good to know. I'm thinking about buying the cones from them and making up ourselves using Acera cordage.

[Matt Johnson]

Here are some pics of ours. As you can see, the nylon used is pretty light weight.... I think the conclusion to prevent fraying was to use a heavier duty material.

[KP44]

Originally Posted by Davidhoy

Wouldn't nylon be a good idea, as the stretch will help manage shock loads. With very low stretch, dyneema would transfer those shock loads directly to the attachment point. I suspect that nylon would be an ideal line material for this kind of thing. Or am I missing something?

-David

My thoughts are the same. I would want some stretch and dyneema has none.

[thinwater]

I have tested many drogues, including JSDs, not only under steady load but also by intentionally giving slack and taking a 10-knot run at it with non-stretch line. You simple CANNOT generate a shock load. The drogue responds by pulling through the water faster.

Additionally, you want the drogue to engage as quickly as possible during a strike, before the boat gains momentum. Nylon works against this. This is not my idea alone; Don Jordan, the inventor said this.

Polyester is well proven in drogues. Dyneema is newer on the scene, but reports have been positive.

Sea anchors are a completely different kettle of fish and are not properly part of the same conversation. Everything about how they work is quite different from both drogues and ground anchors.

[KP44]

Originally Posted by thinwater

I have tested many drogues, including JSDs, not only under steady load but also by intentionally giving slack and taking a 10-knot run at it with non-stretch line. You simple CANNOT generate a shock load. The drogue responds by pulling through the water faster.

Additionally, you want the drogue to engage as quickly as possible during a strike, before the boat gains momentum. Nylon works against this. This is not my idea alone; Don Jordan, the inventor said this.

Polyester is well proven in drogues. Dyneema is newer on the scene, but reports have been positive.

Sea anchors are a completely different kettle of fish and are not properly part of the same conversation. Everything about how they work is quite different from both drogues and ground anchors.

Thank you for that. I learn every day.

I am more likely to use our parachute-type anchor and sit hove-to with the keel and the parachute creating a slick to calm the waves.