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Old 04-04-2009, 19:34   #1
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Series Drogue or parachute Anchor

Series Drogue or parachute Anchor
Which is preferred or do you need both?
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Old 04-04-2009, 19:38   #2
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Never had to use one but looking at the design and how it works i really like the idea of the series drogue.
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Old 04-04-2009, 20:05   #3
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There is a useful thread discussing this ... suggest you choose one or the other:
Jordan Series Drogue vs Para-Anchor ?
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Old 04-04-2009, 20:22   #4
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Have used series drougue once
Major problem with hyd steering approx 30ml off N.S.W. coast in about 25knots of wind. Hung off bow for a couple of hours.Very comfortable and drifted maybe 2 mls. My main reason for carrying is to slow boat down in a following sea but hav'nt needed as yet. Was very easy to deploy and recover
cheers Steve
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Old 04-04-2009, 23:59   #5
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Para anchor from Para Achors Australia. Bloke there is Alby. He's great
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Old 05-04-2009, 15:03   #6
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In a perfect world carry both, no two situations, no two storms are the same, so the more tools you have to deal with them the better the chance you'll have the right one.
If you are constrained by space or budget then you need to choose one.
My choice the drogue, I've used one in anger more than once and it works. Second ly, and maybe ,most important, is ease of deployment and recovery, I've heard too many stories of parachutes that tangled, twisted, were cut loose, damaged the boats deck hardware. Tossing over the drogue and pulling it back in was easy.
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Old 05-04-2009, 17:36   #7
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Long review(s) in Practical Sailor over the past couple of months.
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Old 05-04-2009, 18:25   #8
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We constructed our own series drogue when we were in New Zealand. It's not hard to make, but it does take some time. I have never used my series drogue because I have never been in a storm with seriously breaking seas where this type of drogue would be a big help. I used a simpler and less powerful drogue that I created myself using materials that I had on board. Check out the following link:

ABBOTT DROGUE

I have used the parachute sea anchor only one time in a winter storm three hundred miles north of New Zealand, and the parachute worked flawlessly on that single occasion. We are a catamaran, and parachutes seem to work well on many catamarans.

If you would like to see a discussion on storm managment using drogues and parachutes, you can check out the following link.

STROM MANAGEMENT FOR CRUISERS

I would not sail offshore without both a drogue and a parachute. Sometimes you need to completely stop the boat, and a parachute does a good job stopping it. Sometimes you just need to slow down, and a medium powered drogue will do that. Sometimes you have plenty of sea room and you need protection against wave strikes in breaking seas, and a series drogue will do a good job.

What works for you will depend on the design of your yacht, and what works on one vessel might not work as well on another.
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Old 05-04-2009, 19:06   #9
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Quote:
Originally Posted by maxingout View Post
What works for you will depend on the design of your yacht, and what works on one vessel might not work as well on another.
This is a key point, according to Hal Roth. Likely to be a point of debate which I cannot add experience to, but he says many modern monohulls do not lie to wind on a sea anchor. As I recollect, he says many modern monohulls deploying sea anchors risk going beam on (to be avoided).

Many have been very happy with sea anchors ... but this is what Jordan (the 'non-profit' series drogue designer) said of his test programme:
A sea anchor cannot be designed to protect the boat. When tethered from the bow, the boat will yaw and develop unacceptable loads. The reason for this is that all boats must be designed to be directionally stable when moving forward - or it would not be possible to steer the boat. Therefore, if moving backwards, the boat will be unstable and will yaw and turn broadside to the sea.
Worth reading:
http://www.jordanseriesdrogue.com/pd...riesDrogue.pdf
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Old 06-04-2009, 03:20   #10
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Quote:
Originally Posted by roger.waite View Post
This is a key point, according to Hal Roth. Likely to be a point of debate which I cannot add experience to, but he says many modern monohulls do not lie to wind on a sea anchor. As I recollect, he says many modern monohulls deploying sea anchors risk going beam on (to be avoided).

Many have been very happy with sea anchors ... but this is what Jordan (the 'non-profit' series drogue designer) said of his test programme:
A sea anchor cannot be designed to protect the boat. When tethered from the bow, the boat will yaw and develop unacceptable loads. The reason for this is that all boats must be designed to be directionally stable when moving forward - or it would not be possible to steer the boat. Therefore, if moving backwards, the boat will be unstable and will yaw and turn broadside to the sea.

Worth reading:
http://www.jordanseriesdrogue.com/pd...riesDrogue.pdf
FWIW, The Pardeys disagree in so far that their view (if I understand them correctly) is that most modern mono's can be made to hove to with the right degree of sail and rudder balance although not as easy/simple as older long keel designs.

They seem to support the view that a para-anchor directly off the bow can cause unacceptable yawing with most monos and their remedy is the running bridle from the bow and one quarter.
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Old 06-04-2009, 15:09   #11
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Which highlights the point that preparation is everything, whichever route you go. With series drogues, you have to make sure attachment points on the stern are set up to handle peak loads, and make sure the rear half of the boat (hatches etc) can take a breaking wave.
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Old 11-04-2009, 14:49   #12
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I recently made a series drogue for my yacht. Hope I never have to use it, But if I need it it's there.
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