Taming the Tempest: Your Guide to the Jordan Series Drogue

As sailors, we're always chasing fair winds and calm seas. But the ocean, in its magnificent indifference, doesn't always play along. Every serious cruiser eventually faces genuinely nasty weather, when waves aren't just playful bumps but real monsters set on damaging your boat—and you. In those moments, knowing you have a reliable heavy-weather strategy can be a game-changer. For many, that strategy involves the Jordan Series Drogue.

Why the Jordan Series Drogue Stands Out
Matching the Drogue to Your Boat
When You'll Be Glad You Have One: Beyond Rough Seas
Getting It Right: Crucial Jordan Series Drogue Installation Tips
Deployment & Retrieval: Practice Makes Perfect
Real-World Perspectives & What to Consider
The Bottom Line: Is a Jordan Series Drogue Right for You?
Frequently Asked Questions

The Jordan Series Drogue

You've probably heard of sea anchors and drogues. Both slow a boat in a storm, but they work differently and for different purposes. A sea anchor usually deploys from the bow, aiming to bring the boat to a near standstill, nose into the waves. A drogue, on the other hand, streams from the stern, allowing the boat to run with the waves, but at a greatly reduced, controlled speed. The Jordan Series Drogue, or JSD, is a specific type of drogue, and it has earned an almost legendary reputation for handling the absolute worst the ocean can dish out.

Why the Jordan Series Drogue Stands Out

The Jordan Series Drogue isn't just one big cone or parachute. Picture a very long line, perhaps 100 to 200 metres (around 330 to 660 feet) in length, dotted with 100 to 200 small, five-inch diameter cones at regular intervals. At the very end of this line, a weight, usually a chain of about 15 to 25 pounds (7 to 11 kg), keeps the drogue submerged. This multi-cone design is the genius behind the JSD, conceived by aeronautical engineer Don Jordan in collaboration with U.S. Coast Guard researchers after the disastrous 1979 Fastnet Race.

Why so many small cones instead of one big one? Older drogues often filled with water and then collapsed under storm wave strain, causing jerky loads and potential fatigue failure. The series drogue, with its multitude of cones, ensures there’s always a drag force on the line. Think of it like a hundred little hands constantly gripping the water, spreading the load and preventing those sharp, snatching forces that can wreak havoc on your boat and its gear. This consistent drag also keeps the line from going slack, which is a major factor in reducing shock loads on deck fittings.

The JSD deploys from the stern of the boat, typically attached via a strong V-bridle to reinforced attachment points on the transom. The goal is to keep the stern pointed directly into the oncoming waves. While some sailors might worry about being "pooped" (a wave breaking over the stern), studies and real-world experience demonstrate that a properly deployed Jordan Series Drogue actually causes the stern to rise quickly to steep seas, ensuring safe vessel performance.

What to Do With Your Sails

A common point of confusion for those new to the JSD is what to do with the "engine room"—the sails. The answer is straightforward but vital: all sails should be lowered and securely stowed before or during deployment.

The Jordan Series Drogue is designed to take total control of the vessel's movement. By creating a massive amount of drag from the stern, it keeps the boat aligned with the wind and waves. If you leave a storm jib or a deeply reefed mainsail up, you introduce forces that the drogue then has to fight. Wind pressure on the sails can cause the boat to "yaw" or sail back and forth across the wind, which puts uneven and dangerous loads on the drogue bridle.

Furthermore, in the extreme conditions where a JSD is required, the wind speed is often high enough that even a tiny scrap of sail could cause the boat to accelerate too much or create excessive heel. The goal is to let the drogue do the work. Once the JSD is set, the crew should be below, the hatch should be shut, and the boat should be allowed to ride out the storm as a passive entity.

JSD vs. Heaving-To: Choose Your Tactic

I often get asked if a boat should be hove-to while using a drogue. The short answer is no. These are two entirely different and mutually exclusive heavy-weather tactics.

Heaving-To: This is an active tactic where you use your sails (typically a backed jib and a main feathered into the wind) to hold the boat at an angle to the waves, drifting slowly to leeward. It is excellent for moderate gales and provides a "slick" of calm water to windward.

Deploying a JSD: This is a survival tactic for when conditions have become too severe for heaving-to. When you deploy the Jordan Series Drogue, you are choosing to run with the storm.

Trying to heave-to with a JSD deployed from the stern would be a recipe for disaster. The sails would be trying to pull the bow toward the wind, while the drogue would be pulling the stern toward the wind. This would likely result in the boat being pinned beam-on to the waves—the most dangerous position possible in a breaking sea.

Matching the Drogue to Your Boat

A critical aspect of sailboat storm tactics is ensuring your equipment is fit for purpose. The Jordan Series Drogue is not a one-size-fits-all solution. It must be engineered to match the displacement of your boat to provide the correct amount of drag—enough to stop a surf but not so much that it rips the back off your boat.

Below is the displacement to sizing guide for the JSD:

Displacement (lbs)	Displacement (kg)	Approx. No. of Cones	Line Diameter (mm & inch)
Up to 10,000	Up to 4,535	100	12mm (1/2")
15,000	6,804	120	14mm (9/16")
20,000	9,072	134	16mm (5/8")
25,000	11,340	148	18mm (3/4")
30,000	13,608	162	18mm (3/4")
45,000	20,412	198	22mm (7/8")
60,000	27,216	230	25mm (1")

When You'll Be Glad You Have One: Beyond Rough Seas

Most of us will encounter "heavy weather"—strong winds and big seas—at some point. But there's a huge difference between a lively gale and a truly dangerous breaking wave. Breaking waves, especially those formed by interacting storm waves, carry immense destructive power. They can literally pick up a boat and toss it, leading to capsize, dismasting, or structural damage. This is where the Jordan Series Drogue truly shines. Its main job is to prevent sailboat capsize prevention and total loss of a vessel when hit by such a breaking wave. It allows the boat to accelerate with the breaking wave for a short period, then gently decelerates it as the drogue fully engages, effectively pulling the boat through the breaking crest.

Beyond survival, the JSD also significantly improves the boat's motion in storm waves. It makes the ride much more comfortable and cuts down on drift. Imagine trying to actively steer your boat for hours, even days, in hurricane-force winds and enormous seas. It's exhausting, and often dangerous to be on deck. The Jordan Series Drogue is designed as a "set it and forget it" system—once deployed, it needs no active steering, allowing the crew to go below, rest, and focus on other aspects of storm management. This is a crucial element of effective sailboat storm tactics.

Getting It Right: Crucial Jordan Series Drogue Installation Tips

While the Jordan Series Drogue itself is an engineering marvel, its effectiveness relies entirely on correct installation. This isn't a piece of gear you can just tie off to any old cleat and hope for the best. The forces exerted by the drogue in extreme conditions can be enormous—we're talking thousands of pounds of pull. So, the attachment points on your boat are paramount.

The Jordan Series Drogue connects to your boat via a bridle, which usually attaches to two strong points on the transom. These points need substantial reinforcement. For many fiberglass boats, this means beefing up the deck and cleats, or even fabricating external plates with internal backing plates. Some sailors opt for robust chainplates or heavy-duty padeyes that are through-bolted and reinforced with layers of carbon biaxial weave or similar strong materials on the inside of the hull. The rule of thumb here is simple: if you can’t hang your boat from those attachment points, they’re not strong enough for a JSD.

Chafe is another critical consideration. The drogue line and bridle will be under immense tension, constantly moving against any surfaces they touch. You must eliminate all possible chafe points, especially where the bridle exits fairleads or hawse holes, or thoroughly protect them with heavy-duty chafe gear. Shackles should be moused, and eye splices should incorporate stainless steel thimbles to prevent wear.

The drogue's size—the number of cones and the line's diameter—is carefully calculated based on your boat's displacement. It’s not a one-size-fits-all solution; you absolutely need a series drogue properly engineered for your specific vessel. Generally, it's recommended to err on the side of caution and slightly "over-engineer" for hurricane-force conditions.

Deployment & Retrieval: Practice Makes Perfect

One of the Jordan Series Drogue's design goals was that it should be deployable with one hand in storm conditions without leaving the cockpit, and without fouling. This is largely achieved through careful preparation and storage. Many experienced sailors suggest storing the drogue flaked into a launch bag, with the bridle ready to be shackled on and secured. When the time comes, the chain weight drops overboard, and the drogue feeds out. The deceleration is gradual, not abrupt.

Retrieval, however, can be a bit of a chore. Imagine pulling in hundreds of metres of line with dozens of water-filled cones attached. It’s definitely not a quick hand-over-hand job. Many sailors use a retrieval line attached to the bridle, then use their largest cockpit winches, taking the line in bit by bit, letting the motion of the sea assist. The good news is that the cones tend to collapse once out of the water, making them easier to winch in. Practice is key—deploying and retrieving the Jordan Series Drogue in calm conditions, with all crew members involved, will ensure everyone knows the drill when it truly matters. This contributes to overall offshore safety gear preparedness.

Real-World Perspectives & What to Consider

The Jordan Series Drogue has a solid track record. Sailors who have used it in extreme conditions often rave about its effectiveness in taming otherwise terrifying seas, allowing them to ride out storms with a level of control and safety they wouldn't otherwise have. One cruiser, returning from the Azores in a gale with winds over 50 knots, deployed his JSD when boat speed hit 13.86 knots and called it "excellent," holding the boat stern-to-wind and making about 2 knots.

However, it’s also vital to be realistic. No single piece of equipment is a magic bullet for all storm conditions. The Jordan Series Drogue is a serious piece of kit for serious situations. It’s generally considered for well-found, blue-water cruising boats, not lighter trailer boats. While the JSD is a "set and forget" system once deployed, the deployment itself, and certainly the retrieval, demand careful planning and execution.

Cost is another factor. A new Jordan Series Drogue can be a significant investment, often running over $1,000 USD, and that's not including the cost of installation or reinforcement for attachment points. Still, for a blue water cruising safety strategy, it’s often seen as essential safety equipment, like a liferaft or EPIRB—something you hope you never need, but are incredibly grateful to have if you do.

The Bottom Line: Is a Jordan Series Drogue Right for You?

The Jordan Series Drogue is a highly effective, well-researched, and proven heavy-weather device. Its multi-cone design offers clear advantages in consistent drag and reduced shock loads compared to other drogue types. For recreational sailors embarking on offshore or blue-water passages, having a Jordan Series Drogue aboard, properly installed, and with a crew trained in its deployment and retrieval, provides a significant boost in safety and peace of mind when facing the unbridled fury of the ocean. It isn’t a substitute for good seamanship or sound boat maintenance, but it’s a powerful tool in your storm survival toolkit, allowing your boat to gracefully, and safely, dance with the waves rather than fight them head-on.

The Jordan Drogue is one of the final steps in a heavy weather strategy, which begins with getting to grips with how to correctly and safely reef your sails, a topic we explore in our comprehensive guide, Reefing a Sail: The Ultimate Guide to Control & Safety at Sea.

This article was written by Dick McClary, RYA Yachtmaster and author of the RYA publications 'Offshore Sailing' and 'Fishing Afloat', member of The Yachting Journalists Association (YJA), and erstwhile member of the Ocean Cruising Club (OCC).

Frequently Asked Questions

How many cones do I need for my specific boat?

The number of cones is determined by the displacement of your yacht. For a standard monohull of 20,000 lbs, you would typically require 116 cones. Multihulls generally require about 20% to 30% more cones because they have less hull depth and are more prone to being moved by the wind and surface water.

Where should the bridle be attached?

The bridle should be attached to two heavily reinforced points on the quarters of the transom. Because the loads can reach the equivalent of the boat's displacement in a breaking wave, standard mooring cleats are often insufficient. Most sailors install dedicated stainless steel chainplates backed by large plates on the interior of the hull to distribute the force.

How do I retrieve the drogue after the storm has passed?

Retrieval is the most challenging aspect of using a JSD. The most common method involves using a rolling hitch to attach a retrieval line to the drogue and then winching it in slowly. Alternatively, some sailors lead a "recovery line" from the end of the bridle to the bow. By releasing the bridle from the stern and winching the recovery line from the bow, the boat turns 180 degrees, and the drogue can be hauled in using the anchor windlass.

Is it safe for the rudder to have the waves hitting the stern?

Yes. One of the primary advantages of the JSD is that it keeps the boat moving forward at a very slow pace. This ensures that the water is always flowing past the rudder from front to back, which prevents the "back-down" forces that often break rudders when using a sea anchor from the bow.

What should I use for the weight at the end of the line?

A length of heavy galvanised chain or a small mushroom anchor is typically used. The purpose of this weight is to keep the tail of the drogue submerged. If the end of the line skips along the surface, the cones may not fill properly, and the drogue could lose its effectiveness.

Can I make my own Jordan Series Drogue?

Yes, many sailors choose to purchase kits that include the pre-cut fabric for the cones and the specific rope required. However, the sewing is time-consuming, as each cone must be securely stitched to the line. Ensuring that the materials are UV-resistant and high-strength is critical for the system's reliability.