Sailing A Catamaran

What are catamaran (dinghy) davits and why do you need them.

I keep hearing about davits on catamarans and after seeing a boat that was for sale with a broken davit (and missing its dinghy) I wanted to know more about them, so I did some research and learned a lot.

What are Catamaran Dinghy Davits and Why Do You Need Them? Catamaran davits are a set of crane like arms, typically fabricated out of stainless steel, mounted to the back of the sailboat between the transom steps, with the purpose to lift the dinghy with outboard up out of the water to secure it for sailing and also for security while at anchor. There are many different sizes, shapes and kinds of davits for catamarans.

Dinghy Davits on Catamarans (why you need them)

You don’t actually need dinghy davits but having properly engineered davits on your catamaran can make your life much more convenient and save you lots of headaches and money. You don’t absolutely need dinghy davits on a catamaran or sailboat. As I will explain later in this post, there are other, less convenience ways to lift your dinghy onboard. Other methods may also increase your personal risk of injury as moving around a dinghy and motor weighing several hundred pounds can be hard on your body and deck (and its just a lot of work).

Dinghy Theft Prevention

Dinghy theft is on the rise in many popular boating locations throughout the world. Keeping the dinghy in the water at night while you are sleeping and even during the day when you are not on the boat greatly increases your risk of having the dinghy or outboard motor stolen. For more about boating theft, noonsite.com provides an excellent free service of posting boating incidents throughout the world.

Why is a Good Dinghy Important?

The dinghy is like the family car for catamaran (and many other sailboat) owners. Unless you are spending all your time in a marina tied to a dock (and even sometimes when you are at a marina), you will need a way to get around. The dinghy allows you to drop the hook (anchor) and get to shore without having to swim. It is how cruisers go to the grocery store, explore islands, visit other boats, get to dive and snorkel locations, explore, walk the dog and get around without moving the entire boat off the mooring or anchorage. The more time you spend on your sailboat, the more important the size of the dinghy and the size of the outboard engine on the dinghy. The larger the dinghy, the more effort it takes to lift the dinghy in and out of the water. That’s where the davits come in.

Choosing the Right Size Dinghy

Choosing the best dinghy for your needs, boat and davit system is an important consideration. You want a dinghy that is large enough to fit your family and/or crew, carry your groceries, and family pet. You also want a motor that will allow you to get up on a plane when carrying the family and/or crew, groceries and pet. But (yes there is always a but), you don’t want to go too large that you outweigh your davit system.

Broken Davits Equal Lost Dinghys

I recently looked at a Lagoon Catamaran that was for sale. It had recently finished an Atlantic Ocean crossing. Not only was it missing one of its davits, but it was also missing its dinghy. I didn’t get all the details, but I can make an educated guess that either the dinghy was too large for the davit system or it wasn’t secured properly. I can also assume that the missing davit was the one on the outboard engine side of the dinghy (which holds most of the weight).

Which is First, Chicken (Davit) or Egg (Dinghy)?

If you are buying a used catamaran, then this decision may already be made for you, but if you need to purchase a new dinghy or both dinghy and davit system, then you need to think about engineering your davit prior to buying the dinghy. At least have an understanding of the limitations of each type of davit system and what it can hold. Buying too large of a dinghy or having undersized davits can be more than an inconvenience.

Important When Buying a Used Catamaran

Make sure your surveyor checks the davit system and provides information about the limitations of it. Many used catamarans have replaced a good dinghy with a smaller, cheap one. Don’t just think you can upgrade the dinghy without considering the davits. If you need to change both dinghy and davits it can set you back (cost you) tens of thousands of dollars, something you will want to upfront before purchasing.

Don’t Assume the Last Owner Did it Right!

When buying a used catamaran that has the perfect dinghy, don’t assume the last owner sized the davits correctly. Many used boats come out of charter and don’t experience rough seas from crossings or challenging passages. The charter companies restrict where they can sail to mostly calm seas. Once again, make your davit system is inspected by your surveyor for proper sizing, installation and any signs of stress.

Engineering the Davit System for the Dinghy

It is important to size the davits for the dinghy that it will be carrying. One common mistake is to take the overall weight of the dinghy and divide by the number of davits (two). So, if the overall weight of the dinghy is 400 pounds, the wrong way to size the davits is to carry 200 pounds each. Keep in mind that the outboard engine most likely will account for up to eighty percent of the weight of the dinghy so the davit carrying the engine side needs to be sized accordingly. Better yet, oversize both davits so that if the dinghy ever gets loaded in reverse or fills with water, it doesn’t get lost.

Properly Securing the Dinghy

Securing the dinghy to the davits is a critical step in maintaining the integrity of the davits. Going back to the example of the 400-pound overall dinghy weight, we can demonstrate how an unsecured dinghy can add a lot of stress to the davits. When the dinghy is secure it doesn’t move and generally, speaking the actual weight of the dinghy is what is transferred to the davits.

What Happens when it’s Not Secure (Fail)

When the dinghy isn’t secured properly and allowed to move around, additional weight and stress is transferred to the davits. Now imagine what happens to the dinghy when you are out at sea. Even in moderate seas, the dinghy is bouncing around and swaying back and forth adding not only downward pressure, but also side to side pressure to the davits. Over time (or the first time), this stress can cause a failure – a very expensive and potentially dangerous failure.

Boats Without Davits (Lifting the Dinghy)

So how do you lift the dinghy when there are no davits? There are a few ways to do it. Any sailboat with a boom can use it like a crane to lift the dinghy. Lift the outboard motor first, then the dinghy. This works great and is the way many smaller monohulls do it, though it does take a fair amount of effort. Of course, you can also lift it by hand, but you need strong crew in order to lift it this way and the chance of dropping it is increase. Some large catamarans have a dinghy garage and don’t need davits. Others have a large swim platform that raises and lowers to store the dinghy. If you are an experienced sailor and have seen or used another method, please share it in the comment section below (we would love to hear about it).

Towing Your Dinghy Behind Your Boat

You can tow your dinghy behind your catamaran. This isn’t recommended for long crossings or if you are expecting heavy seas and it may slow you down, but it is another way to move your dinghy. Of course, towing your dinghy doesn’t help with security while at anchor. You’ll have to think of another way to secure your dinghy and outboard when you are not using it.

How to Get the Dinghy in and Out of the Boat (With Davits)

Dinghy davits are one of the easiest and most convenient way for catamaran owners to raise and lower the dinghy in and out of the water. Rigged with pulleys and a winch, it is much easier than doing it by hand. There are many different davit systems, but generally this is how it works.

First, you connect the lines from the front davit to the front of the dinghy. Then you connect the lines from the rear davit to the dinghy. You can pull the lines manually or if equipped with a winch nearby, wrap around a winch and use it. The winch can be a hand crank or powered. Some systems are set up to lift the front and back of the dinghy at the same time with one line to the winch. For other systems, you may pull the front part way, then the back and back to the front, etc.

How to Drain Your Dinghy

Before pulling the dinghy all the way up, raise the front up higher than the rear. This allows you to drain any water (extra weight) that may be in the dinghy before securing. When all the water is out you may want to replace the plug in the dinghy (so you don’t forget before using) and finish raising both the front and the rear to their maximum positions. If it is raining or you are not going to be using the dinghy for a while, you may consider keeping the plug out so that the dinghy doesn’t fill up with water, which can add significant weight to the dinghy and stress on the davits.

Water Weight Can Add Significant Stress to the Davit System

Water weighs 8.33 pounds per gallon. Think about how much water your dinghy can hold, then do the math (Length of interior space X Width of interior space x 7.5 x 8.33 will get you close to the weight in pounds). Of course, if you need to collect water, keeping the plug in allows the dinghy to double as a water collection device. Just make sure that your davits are designed to hold the additional weight.

A Swinging Dinghy (My Favorite Band)

Yes, that title made me chuckle also. I think if I ever have a band, I would call it the Swinging Dinghys! A band by that name might even land a gig with Jimmy Buffet! Make sure the dinghy is all the way up to eliminate any extra force and stress that can be caused by a swinging dinghy. It may be a good idea to have an extra strap or two to tightly secure the dinghy to the davit or to the boat when sailing to keep if from moving. Rachet straps are a good idea for long passages. Remember a swinging dinghy can jeopardize the davit system (and your dinghy).

Man Overboard!

I have read about this happening to more than one person on the forums. The dinghy line comes loose and someone reaches out to pull the line tight just as a rogue wave hits the boat at a weird angle. In a split second, the person slips (or flips) overboard – hopefully noticed by someone onboard. A couple of points. Make sure you alert your captain and crew before attempting a fix so they are alert to what you are doing. If you are on a passage or in rough seas, it’s a good idea to have a safety line and/or PFD (i.e. life jacket) with EPIRB (beacon) so you can be found if you do go overboard.

Extra Padding

Depending on the davit system and type of catamaran, you may need to add padding on the davit to protect the dinghy when up and secure. The constant rubbing that occurs especially on long passages or crossings or in rough and choppy seas can harm your dinghy.

Custom Davit Systems

The davit system described in the above paragraph is one type, but there are many other types by OEM and custom aftermarket davit manufacturers. Many catamaran manufacturers use a davit system where the entire davit system (the stainless steel arms or frame) drops down towards the water. In this case, you clip each dinghy lines to the davit and lift the entire davit with one line through the winch. Both the front of the dinghy and rear of the dinghy and davit frame lifts at the same time.

Practical Davit Considerations

In addition to making sure the davit system is engineered to handle the weight of the dinghy (both actual and in motion) with consideration for the weight of the outboard motor, there are some other important things to look at.

First, make sure the dinghy fits the davit or the davit fits the dinghy. If not sized correctly, the motor may hit and rub on the davit. Next, consider how you are going to clip the dinghy to the davit. Will you be able to secure it in choppy seas? If you upgrade your dinghy, will your davits hold it. Very important to know before installing new davits and/or before buying a new dinghy. Davits are costly and so is a dinghy.

Catamaran Dinghy Davit Summary

Most catamaran owners will spend a considerable amount of time in their dinghy. It is a critical part of the catamaran sailing experience. It is therefore not only extremely important to have a dinghy that will fulfill your needs, but also to have a convenient way to store it. If you have the budget, invest in the best davit system you can buy as it will take away one challenge that comes with life on the high seas.

See you sailing!

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Dealing With Dinghy Davits

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If dinghy storage is lacking on your boat, the wide range of davits now available can offer a solution.

Lifting platform

Photo: Bill Parlatore

When a boat is large enough for even the occasional overnight, the need for a dinghy becomes almost mandatory. But where do you put that all-important link to shore for lunch, dinner, shopping for supplies, walking the dog, seeing the sights, exploring the shoreline, or visiting neighboring boats? Fortunately, when it comes to davits, we have many choices to suit needs and budgets. Considering the variables when comparing davit systems, and finding the best system may take some research, but there are solutions to fit every boat. The goal is to find the one that works best for your boat and makes your day on the water easy and fun.

Whether you have an express cruiser, trawler, sport cruiser, picnic boat, or other style of craft, before you jump in, make a realistic assessment of your dinghy because its size, weight, and that of its outboard will have a significant impact on davit choices. While a large rigid inflatable boat (RIB) with a 50-hp outboard might be great fun on the family vacation, there are likely serious limitations for a davit system to fit such a boat. Dinghy size and weight may impact trim, performance, and the structural integrity of your mother ship. While some boat owners get around this by towing their large dinghy, it's not a safe or practical solution for anything more than a short hop from one anchorage to another. TowBoatUS and the BoatUS Marine Insurance Program get dozens of calls each year after a towed dinghy has done damage to itself or the boat towing it.

Keith Olver of davit manufacturer KATO Marine says the question of what dinghy you want comes with an important caveat. "It's harder for us to design for what owners want, rather than selecting a dinghy for what is possible." If you've already got a dinghy, you may be able to build a system to fit it. If not, the next step is to find a system that works for your boat type, knowing that the system you choose will box in the size and weight of the dinghy.

Traditional Davit Arms

Davit arms work best on boats with vertical transoms or sterns with railings strong enough to be the basis of support for the davit arms, such as a lobster boat or trawler-style cruiser. The arms mount onto the top of the transom and extend out behind the boat, clearing the swim platform, if there is one. Additional bracing of the transom area is sometimes required to reinforce the hull from the shock loading of a bouncing dinghy in rough weather.

Traditional davit arms

Traditional davit arms offer a reliable solution, but the dinghy does block access to the swim platform. (Photo: Joe Marin)

Weight is important when planning a traditional davit-hanging system. Selecting a pair of davit arms each rated for a maximum of 300 pounds doesn't mean it's safe to carry a 600-pound dinghy. Up to 75 percent of the total weight of the dinghy and outboard is in the stern. So one davit arm will always be loaded much more heavily than the other and may need to be reinforced if there's any question of its ultimate integrity.

Other configurations attach the davit arms directly to the stern rail with additional bracing to strengthen the railing support. Olver says it's essential to strengthen the stern rail to handle the increased weight of the dinghy hanging from the davit. It's also important to stabilize the davit arms so they can't move from side to side as the boat moves. This lateral support is often done by connecting the davit arms with rigid support between the two.

The dinghy must be stabilized to prevent motion when stored. The weight of gravity pulling the dinghy down becomes a compound set of forces when the boat is moving, and every effort must be made to steady and eliminate all movement. Most davit systems that fail do so because the dinghy was allowed to swing underway, or it comes loose, and the combination of side-to-side and up-and-down movements creates complex loads beyond the engineered capacity of the davit system. The twin-davit-arm system is a proven approach for handling the dinghy and has much to recommend it. Some companies offer removable arms that can be taken off and stowed when necessary, such as those from St. Croix Marine.

Swing-Up/Snap Davits

Another system that's been around for a long time was pioneered by Weaver Industries. Called the Weaver Snap Davits, the system involves attaching connecting hardware to both the dinghy and swim platform. The dinghy fittings snap into those on the swim platform and you pull the dinghy up vertically onto the swim platform, either manually or electrically, and secure it in a near-vertical position with standoff brackets or ties. St. Croix Marine Products and Sea Wise Marine are manufacturers of similar systems, and an optional hydraulic operation is even offered.

Swing-up davit

Swing-up or snap davits are easy to install yourself, and work best with light inflatables powered by small outboards.

Most dinghy installations require the removal of the outboard engine from the dinghy, although these companies have optional equipment that can be added to allow the outboard to remain on the dinghy and swivel as the dinghy swings up. Using a smaller and lighter outboard might make sense for this system if you intend to remove the engine each time the dinghy is secured.

Snap davits are popular with owners of smaller boats that have a swim platform, or on boats with large cockpits, such as the picnic-style powerboat or express cruiser, where it's about the only way to carry a dinghy. These are generally good do-it-yourself install projects and relatively inexpensive.

As popular as these swing-up systems are, I find it frustrating to overtake a boat when its dinghy is carried vertically on the swim platform, covering the boat's name and hailing port and making that VHF call for a portside pass challenging. Some boat owners paint the boat's name on the bottom of the dinghy for this reason. Rear visibility from some helms can be an issue when the dinghy is vertical on the swim platform, and, of course, using the swim platform is harder when a dinghy is stored on it. If you choose one of these systems, make sure the dinghy will not obscure your stern light when stowed.

Pull-Up, Slide-Up Davits

These davit systems offer a low-tech approach to handling the dinghy. The pull- or slide-up davits have two hinged cradle arms mounted onto the swim platform. When you want to get the dinghy aboard, the hinged arms tilt out to the water from the swim platform, and you pull the dinghy sideways onto the cradle arms.

Pull-up davit

Pull- or slide-up davits work best on boats with wider swim platforms, and allow you to leave the outboard in place.

As the center of weight comes aboard, the hinged arms come back to rest on the swim platform and the dinghy is then secured with straps on the swim platform. The outboard doesn't have to be removed. These davits can be used on most swim platforms wider than 18 inches and work best if the top of the swim platform is relatively close to the water. If the platform is too high, it can be difficult to manually pull a dinghy aboard. An electric winch can be used to accomplish this on some vessels.

Lifting Platforms

I recently spoke with Steve Wallace, manager of Zimmerman Marine at Southport Marina n North Carolina. His facility is located along the Intracoastal Waterway in a town that is a safe haven from the ocean, giving Steve the opportunity to talk to many hundreds of cruisers passing through Southport. "The key to happiness is ease of use," Steve said. "Boaters want to push a button and just go."

Hydraulic lifting platform

Hydraulic lifting arms and platforms are convenient but expensive.

Hydraulic and electric platforms with cradles have really come into their own in the last decade, especially with electronic controls and refined engineering. The concept of a lifting swim platform or cradle really resonates with powerboat owners no longer wanting traditional block-and-tackle systems. These hydraulic lifts can handle much greater weight, and you can opt for some form of sport boat instead of a traditional inflatable dinghy, while retaining easy launch and retrieve capability using a remote. As you might imagine, installing a lifting swim platform is best done during construction. One can be added as an aftermarket project, but it depends on the boat. That is perhaps why more builders offer a lifting swim platform as an option on a new boat when access is best before steering, exhaust, and machinery systems go in.

Lifting Cranes

If the cost of a lifting platform is beyond reach, or it can't easily be retrofitted to an existing boat, a lifting crane may be an option, using hydraulic, electric, pneumatic, or manual power.

Lifting crane

Lifting cranes can help you store your dinghy up on the flybridge or hardtop out of the way, reducing the chance of theft or damage, but usually require significant structural reinforcement during installation.

A standpipe is installed in the boat, firmly attached to the hull and deck structure, and a telescoping crane fits into it. The crane lifts the dinghy off its cradle, and the boom swings out over the side of the boat to lower the dinghy into the water. Lifting cranes used to be seen only on very large yachts, but now they can be found on boats under 40 feet.

  • Weaver Marine Products
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  • Kato Marine
  • Hurley Marine
  • FreedomLift
  • Trick Davit
  • Atkins & Hoyle, Ltd.
  • Olsson Mfg.
  • LaConner Maritime Service
  • Sea Wise Marine

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Bill Parlatore

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Bill Parlatore is the founding editor of PassageMaker magazine with his wife, Laurene.

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Multihull of the year

Davits and arches : Getting your dinghy back aboard your multihull

The dinghy is the one piece of equipment you use at every port of call, meaning 70% of the time while you’re cruising. But what about launching it and getting it back on board? We take a look at the systems available.

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Published 25/01/2020

By Olivier Barret

Published: mar. / apr. 2020

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Advantage catamarans

Launching and raising the dinghy is generally a daily operation, sometimes even more frequent than that. Taking the dinghy out of the water improves performance under sail - or limits fuel consumption. It's also the best way to avoid having it stolen during the night... Given the frequency of handling, you should really have a decent system, to avoid lumbago or other back problems. With their large beam, multihulls and especially catamarans, offer the best solution for “ready-to-go” stowage of a decent-size tender. It’s not uncommon to see dinghies over 3 meters (10’) long on catamarans of around 40 feet. But it’d be a different story on a monohull, even if you were to fully deflate the dinghy. If we rule out storing it on the trampoline (always an option, though) and launching it with the spinnaker halyard (only valid for small tenders), there are several ways of storing it at the transom. Davits are the most common system, but the proliferation of aft bathing platforms is a recent boon for our tenders. Another possibility, often used by monohulls but now regularly seen on board our multihulls, is the arch. And, finally, the most extreme option: the hydraulic passerelle or crane, which is often seen on multiyachts.

This is the simplest and most effective way to lift your dinghy without too much effort. If your multihull isn’t already equipped with any, stainless steel models are available from chandleries from around € 300 per pair. However, these low-priced models won’t support a load much higher than 50 kg (110 lbs), which drastically limits the size of your tender. For a 3.50-meter (11½ foot) dinghy, you can expect a load of 150 kg (330 lbs) including outboard and fuel. For those who don't like the prominent design of these spars, there are telescopic models which retract under the transom gunwale. By fitting a set of blocks, the hoisting lines can be brought back to a winch: the mainsheet winch, for example. For performance enthusiasts who don’t want to add too much weight aft, some manufacturers offer models in polyester composite and even carbon.

A cradle on the platform

These days, many catamarans are equipped with optional bathing platforms. Whether they’re hydraulically or manually operated with a winch, they allow the tender to be launched very easily by lowering the platform below sea level. You’ll still need to install a cradle and lashing points to hold the dinghy securely. Cradles or chocks are available in stainless steel or composite; they can be retractable in order to limit the risk of getting your feet caught in them and enjoy the bathing platform. This arrangement is very suitable for a much heavier dinghy: hydraulic platforms can support up to 600 kg (1,300 lbs) and more. If your multihull is not equipped with an original platform, it is possible to fit one on the transom. Yard-mounted models are quite wide and heavy; there are smaller and lighter ones suitable for small boats or ...

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Dinghy Davits

FREEDOM TO EXPLORE ‍ We offer simple, high-quality solutions to your dinghy and Sea-doo storage needs.

The Problem

For avid boaters, a dinghy is almost mandatory! Especially on longer, overnight voyages. The luxury and convenience of having your dinghy inflated, clean and ready to use is second-to-none. BUT how do you take your dinghy along for the ride without losing precious deck space or possibly breaking some toes?

The Solution

We have created high-quality and easy-to-install Dinghy Davits to put your mind at ease allowing you to enjoy the open waters and soak up the good times. Our sophisticated boating community is always looking for creative, elegant and functional solutions for dinghy or Sea-Doo storage. Our davits systems are simple to set up and easily hide away when not in use, saving both your amazing deck space as well as your toes!

What the people are saying

Simply surpassed all expectations! First, the client experience, wow: They pick up the phone (no silly phone system), they're knowledgeable and down to earth friendly. Then it's on with quick shipping (only a few days). Lastly, the quality of the material? Omg, this extended davits system is made thick and solid, like, rocket grade and it made me grin: "Ohhh yeah!" It all just feels so right to purchase those quality davits for the 340 Sea Ray Sundancer.

I can't say enough of the excellent after sales service of this company!   Incredibly responsive and the product quality is top notch.    I had questions during the install and leading up to the purchase and the company answered my calls every time,  regardless of when. Truly impressive customer service.

The Drop Down Davits are very well made and take up very little space when not in use which is great!

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WORLD CLASS DAVIT SYSTEMS

1 800 883 2848.

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​Welcome to Ocean Marine Systems.  We produce high quality marine stainless steel precision welded Davit systems.

We are proud of the world-wide record of performance that our dinghy davit systems deliver year after year as well as our outstanding record of product engineering, quality, technical support, customer service and the “beyond the call of duty” reputation we have established with our clients over the years. 

Rail Mount Davits

Hurley Marine

Hurley H3O Dinghy Davit System

$ 2,889.95 – $ 3,489.95

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Hurley H3O Dinghy Davit System  ® (Hurley’s 3rd Option)  . . .   the Hottest Dinghy Davits on the market!

The rugged Hurley H3O Dinghy Davit System lets you  winch your dinghy on  for easy storage or just push-off for launching.

  • CAD design software was used throughout the product development cycle of this complex design yet simple for easy use.
  • Impressive combination of design and function with  superior quality & craftsmanship.
  • Universal linear bunk design to fit a multitude of hull designs.
  • Made of Marine Grade High-Density Polyethylene for strength and to reduce friction during retrieval and launching.
  • Ideal for high swim platforms, docks  and/or  heavy tenders.
  • Our revolutionary new stainless steel mounting system provides a quick release, leaving a very small footprint profile that could pull a barge.
  • Easily mounted on the swim platform and can be installed while the vessel is in the water, in most cases.
  • Made in the U.S.A.
  • Braking Hand Winch included.   Electric winch available.
  • 3′ to 5’ adjustable and removable winch arm.
  • Overall weight:  53 pounds (24.04 kg)
  • 400 pounds (181.43 kg) capacity.
  • H3O Davit Extension  available.

If you need more room on your platform for your tender, add a Davit Extension .

Review our  Recommended Tie-Down Method

Ask about our special Highfield Dinghy Davit Inserts .

⚓️    Shop for “H3O Accessories”

  • Description

Additional Information

  • Davit Worksheet
  • Reviews (12)

Hurley H3O Dinghy Davit System ®

The Hurley   H3O Dinghy Davit System ®  is specifically designed to allow the safe retrieval and stowage of a rib dinghy / hard-hulled tender, using the linear bunk system for on your boat or dock. The  H3O Dinghy Davit ® has an adjustable and removable winching system.  The stainless steel retrieval arm is adjustable from 3' to 5', depending upon the length of your tender.  Easily removed for storage while underway.  The H3O Dinghy Davit is ideal for tenders up to 10'6" (3.23m) long and not more than 400 pounds (181.43 kg) capacity.  A davit extension is available for smaller platforms.

The system has two small stainless steel mount plates that requires only a total of four bolts for the install and only stands 5/8" high ( 2 included).   This mounting system provides a quick release leaving a clear deck for any activity.   Mount Covers are available.   Easily mounted on the swim platform, these hassle-free systems let you winch your dinghy on for easy storage or just push-off for launching.   Always available in an emergency.

In order for the H3O Dinghy Davit® to work for you, your platform will need to have the workable depth (transom to swim platform edge) of at least half of the beam of your tender, or more. It's all dependant upon tender weight, as well as other configurations of your vessel.  Give us a hail or fill-out our Davit Worksheet  to let us help you figure it all out! Make Sure it says " HURLEY " . . .   Made in Michigan, Sold Globally!

Featured in the Miami International Boat Show "Innovation Award Program" Featured in the "Product Showcase" of the Miami International Boat Show Featured in the   METS (Marine Equipment Trade Show)   in Amsterdam, Netherlands

H3O Purchase includes:   H30 Dinghy Davit®, Braking Winch with Retractable Arm and Mounts.   Mounting bolts are not included .  Shipping weight 53 pounds.

• Two Year Warranty on the davit and 90 days on the winch.

Fill-out our  Davit Worksheet to help us determine if the H3O will work for you.

H3O Instruction Manual  » H3O Mounting Template  » H3O Extension Instructions  » H3O Electric Winch Instructions  » H3O Electric Winch Assembly  » Dinghy Davit Gallery  »

Weight53 lbs
Dimensions37 × 13 × 8 in
Select Davit Model

H3O w/ Hand Winch – $2,889.95, H3O w/ Electric Winch – $3,489.95, Black H3O w/ Hand Winch – $2,889.95, Black H3O w/ Electric Winch – $3,489.95

In order for the H3O to work for you your platform will need to be at least 30″+ in depth (transom to swim platform edge) as well as other configuation measurements of your vessel and dinghy. Give us a gail to let us help you figure it all out!.

Davit Worksheet - How to Measure for a Dinghy Davit

Boat & platform info.

measure-old

  • (A) Swim Platform Internal Width
  • (B) Swim Platform Depth Measurement from Transom to Edge of Swim Platform.
  • (C) Distance from Top of Platform to Water
  • (D) Transom Height Distance from Top of Platform to the Top of your Transom.
  • Obstructions on Platform? If so, please describe and make sure that you also upload photos. (see below)
  • Year, Make, Length & Beam of Main Vessel

Dinghy Info

  • Make of Dinghy
  • Beam of Dinghy
  • Length of Dinghy
  • Soft Bottom
  • Hard Bottom
  • Total Dinghy Wet Weight (with engine)
  • Upload photo #1 - max 6mb (megabyte) Pictures help! Submit an image or two of your swim platform here. Accepted file types: jpg, gif, png, pdf, Max. file size: 6 MB.
  • Upload photo #2 - max 6mb (megabyte) Submit another image. Accepted file types: jpg, gif, png, pdf, Max. file size: 6 MB.
  • Upload photo #3 - max 6mb (megabyte) Submit another image. Accepted file types: jpg, gif, png, pdf, Max. file size: 6 MB.
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12 reviews for Hurley H3O Dinghy Davit System

Jeff H Evans – December 4, 2020

After having various versions of davits on prior boats with varying levels of complexity, I searched for davits that were simple, had a small footprint and I could operate single handed with a 10′ RIB and 15 HP outboard. The H30 delivered all my requirements and more. Installed on my 460 Express in 2016, I now have 5 years experience on the Great Lakes with the H30 and it has never let me down. Thank you Hurley for engineering an elegant solution.

Henrik Andresen – July 5, 2017

Wanted to send You pics after installation and purchase of the new GTI (90). This is the only davit I could use! Works fine! Thanks to You I didn’t have to settle for The Spark.

Best Regards, Henrik Andresen Norway

Marty Russon – July 5, 2017

Todd, You are a genius! Thanks for an incredible davits system. I bought your H3O hand crank davit system. There are so many positives I dont know where to begin. In a word, it worked! I have looked for quite some time for a davit solution that would allow me to load and unload my hard bottom dinghy with a Mercury 9.9 4 stroke all by myself. My bad back really appreciates what you have created in the H3O. Great job!

Ron – September 1, 2015

We purchased your Opriginal davit to carry our 10 foot AB RIB with its 4hp motor. Over the few years we owned it (we’ve now given it to a friend) we realized it was not the right choice for our 45 foot Sea Ray Sundancer. Its swim platform is 18 inches off the water and the angle needed to haul it up made it increasingly difficult to get the AB up onto the swim platform. The solution, AND IT REALLY WORKS, is your H3O! Thank you Todd!

Chris C – August 23, 2015

I installed this on a 2003 Rinker 342FV with an AB9.5AL RIB and 9.9hp Mercury. I tried another brand of a pull on type and to say it was difficult to pull up is an underestimate. Finally purchased the H3O after talking with the people at Hurley if there was enough room to use it.

The H3O is amazing! Effortless to load/launch, secure on the platform, dingy secure. Easy install. Had several people come look at it at a raft off party this weekend too. Definately worth the price.

Edward – April 28, 2015

I had the H2O and it works good. But since i upgraded my dinghy to a bigger one it was a two man job to pull it up. Now I upgraded to the H3O and even my wife can deal with the dinghy. This product has change the way we used to enjoy our dinghy becase before i drop it to the water only if necesary, now I put it in the water every time we anchor and enjoy our platform more. Thanks Hurley Marine from Puerto Rico!

Bryan – September 2, 2014

This is a super cool unit. It allows me to put a jet ski on the back on my 34 ft Sea Ray Sundancer (340). Boat runs fine with it on the back. I am so happy. Bryan

David Toney – August 25, 2014

Finally got the H3 installed. Works great with the Spark which is about 1/2 weight of other sea doo models. Just thought I’d share.

David Toney

Mark Gust – August 21, 2014

The H30 is the best new marine product I have seen in a lifetime of boating. If you have a heavy dinghy and/or a higher swim platform this is the BEST solution. FINALLY I can launch and retrieve my Zodiac easily and quickly by myself. Without the H30 I had to recruit others to help me pull it up or remove the motor to lighten it. Now with the H30 I am now seriously considering adding a SeaDoo Spark as a new “toy” for our boating fun because I know I can easily haul and retrieve it. Before this H30 I was actually considering a hydraulic swim platform or a crane as an option. Happy Boating Everyone! Mark / Lake St Clair MI

Kenneth Sverre – August 12, 2014

I have used the H30 on my Sealine SC35 this summer too lift a 330 Rib, it works perfect. Experienced sailors have been impressed how easy it works.

Kenneth Sverre Norway

Woody Bailey, Jr. – April 1, 2014

I finally had a chance to try out my H3O this past weekend and it worked great for my Sea-Doo Spark.

Woody Bailey, Jr.

Lynn – March 6, 2014

Awesome davit system! Thx Hurley Marine.

Only logged in customers who have purchased this product may leave a review.

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Boat Davits, Dinghy Davits, Yacht Cranes

UMT Marine is a lead supplier of davits/yacht cranes to the marine industry. Our cranes are entirely made in the USA and have evolved over 15 years to become the trusted choice of yacht owners, captains, brokers, service centers, and boat builders. Not only are UMT davits/yacht cranes strong, reliable and easy to use, our after sales service is a defining benefit of choosing a UMT davit. Whether maneuvering a dinghy, RIB, Jet Ski or scooter on and off a vessel, UMT cranes will make the task easy and safe.

We specialize in:

Boat cranes: Our boat cranes are designed to make boat handling easy to load and unload cargoes in a marine environment. Our cranes are durable and reliable solutions that are used exclusively in the marine and offshore industry.

Dinghy lift: All UMT dinghy davits are excellent solutions to maneuver a dinghy or similar watercraft proficiently. Ensure hassle free dinghy handling with our products.

Jet Ski davit: The Jet Ski davit is used exclusively for personal purposes. You can use them to efficiently lift your Jet Ski out of water or for drying.

Consult with UMT and discover a new standard of excellence with boat davits for every purpose. Indeed, we would recommend that try UMT marine products for optimal benefit and we ensure that you come here for more!

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UMT’s VX crane is the most robust and versatile yacht crane in the market.

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Dinghy Storage on a Sailboat

  • By Dan Spurr
  • Updated: August 28, 2020

dinghy storage

During this past October’s Boat of the Year competition at the US Sailboat Show in Annapolis, Maryland, the judges became quite familiar with the concept of “garages.” That is, a large stowage area under the cockpit for dinghies as long as 10-plus feet, as well as hard-bottomed RIBs with sizable outboard motors, and even consoles. They are accessed by fold-down doors or transoms that double as swim or launch platforms. During our evening deliberations, we three BOTY judges —Ralph Naranjo, Ed Sherman and me, along with CW editors Mark Pillsbury and Herb McCormick—began to speculate what other developments in carrying dinghies might have emerged alongside this particular innovation.

At the risk of being ­anticlimactic, the best answer is: none.

The other options, beyond the garage, are familiar, but there is not one unanimous choice that suits all sailboats. The decision tree begins with the mothership, and the best choice is dictated mostly by its size and design. So if you haven’t bought your cruising sailboat yet, eye each candidate with its suitability for carrying the dinghy . But if you’re committed to your current boat, you’ll have to make do.

This maneuver is OK for ­sheltered waters but not advisable in rough ­conditions, even on coastal forays. There must be a provision for securing the dinghy out of the water. If it fills with water, you might have to cut it loose before it endangers your boat. Losing a dinghy is painful.

Catalina 545

Select the painter wisely. While it would be ideal if it floated, common polypropylene quickly degrades in the sun. Three-strand or braided nylon is strong and durable. Beyond capsize or filling with spray or rainwater, a third risk is having the painter foul the propeller. Years ago, while entering Chesapeake City harbor, we ran aground. Instinctively I threw the transmission into reverse and turned to wave off the boats following us. Minutes later, while looking for alternative places to anchor, I noticed that the dinghy was gone. We expected to find it adrift, but no such luck. Then we saw it, totally submerged half under the boat. Yep, the painter fouled the prop, which yanked it underwater. What an idiot! Worse, the dinghy’s bow eye smacked a prop blade, bending it badly. The lesson? Shorten the painter for tight maneuvers.

two-person inflatable

If your tender is inflatable, it might be possible to deflate it to stow in a locker (this rules out RIBs, whose fiberglass or aluminum hulls won’t fit in the lockers of most boats). The one-time commodore of the Ida Lewis Yacht Club in Newport, Rhode Island, to which I once belonged, did this on his Wanderer III replica/sistership.

During one club cruise, upon arrival at an anchorage, I watched from our boat as he retrieved his deflated dinghy from a seat locker, laid it out in the cockpit, and began to inflate it with the familiar foot pump. It took perhaps 10 minutes or so. A 12-volt electric pump would’ve sped up the process. When finished, he tossed it over the side, secured the painter, helped his wife board, and then rowed ashore.

Granted, range in such a dinky dink is severely limited; this skipper eschewed even a small outboard, and inflatables do not row well. But in the right location, it is a means of getting ashore.

Lashing down a dinghy

Lashing down a dinghy on deck has long been a go-to option on many cruising boats. It’s dependent on having adequate space available between the mast and cockpit enclosure (dodger or windshield) or between the mast and foredeck. The latter is less preferred, and both require that sail- and boat-handling functions, such as reefing and anchoring, are not compromised.

In this instance, you need to figure out a means of deploying and retrieving the dinghy beyond picking it up with brute strength and flinging it over the side. A four-point bridle with a lift point at the center of gravity enables lifting more or less horizontally. For mechanical advantage, a halyard led to the lift point on one end and to a mast winch at the other will generally get the job done; the main difficulty is pushing the dinghy outboard over the water. A helper on the side deck, perhaps aided by a boat hook, will make the job easier and hopefully avoid a messy situation.

Minutes later, we noticed the ­dinghy was gone. Yep, the painter fouled the prop, which dragged it underwater.

The dinghy can be secured by multiple wraps of line to handrails port and starboard. Tighten well or use ratchet straps. Oars can be tied in as part of this package, along with an outboard motor set on the familiar rail mount. If it’s too heavy to hand down to a waiting dinghy in the water, consider an outboard-motor lift installed at the stern that employs a block and tackle to safely lower and raise the ­outboard off and onto its adjacent mount.

Ah, davits. While davit hardware is somewhat expensive, this is a good option for coastal cruising. It is much safer than towing, and compared with lashing on deck, greatly simplifies launching and retrieval. If the boat has a swim platform, as more modern boats now do, it also simplifies getting in and out of the dinghy. Climbing down a transom ladder works too. And it’s usually OK to keep the outboard mounted on the tender’s transom, avoiding the often-tense business of lowering the motor from the deck to the dinghy.

Brooklin, Maine

However, large breaking seas could rip off the dinghy and mangle the apparatus, possibly jeopardizing the big boat. And when docking, remember you’ve got baggage back there and don’t want to snag it on something, or bash a piling or other boat.

right-side-up tender

There is variety in the design of sailboat davits; for heavy loads, they mount on the afterdeck or transom, well reinforced below. With loads up to around 350 pounds, there are systems that can be mounted on a sturdy stern rail, and even kits to reinforce the stern rail.

Some large traditional ­sailboats, such as schooners and windjammers, carry a shore launch in davits above the midship deck, but this won’t be a viable solution for most cruising sailboats.

Hanse 675

We’re back where we started, with the dinghy garage that was so popular in the 2020 BOTY competition. With so many larger boats carrying max beam aft to the transom, some designers and builders are incorporating the so-called garage for even fairly large RIBs with steering consoles under the cockpit floor, as mentioned. This is probably the safest, most secure way to carry a dinghy. Big boats such as the Hanse 675 and others employed garages with a variety of enclosure systems, most hydraulically activated. Sliding cradles that facilitate launching and retrieval with handheld controllers mean you don’t have to risk slipping a disc trying to grunt the beast aboard. Pretty slick! This isn’t something you could retrofit to an older design, but if you’re in the market for a new boat, it’s a feature well worth investigating.

Yachting journalist Dan Spurr has stowed dinghies on a long line of cruising boats he’s owned, ranging from a 28-foot Pearson Triton to a powerful Tartan 44.

  • More: dinghy , How To , print aug sept 2020 , tender
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Dinghy Davits Whats the best?

  • Thread starter capi6289
  • Start date Feb 13, 2014
  • Hunter Owner Forums

Hi, I just bought a Hunter 466, with a dinghy and no davits, I prefer to have it on davits and not the fore deck, I read allot about Nova Fore Spar, but they have weight limits of 300 LBS my dingy weighs 225LBS with outboard 335 lbs, what davits are recommended to support the weight and avoid swinging with healing, or weather issue. Bill  

Stu Jackson

Stu Jackson

Bill Roosa

Other things to consider; Will all the crew be able to see aft with the dingy on the davits. While I can see over (6 ft) the 5 ft first mate sees the dingy and sky. Will it cover the stern light? This will require moving the stern light. Will that make your boat longer "in the slip"? Marinas usually charge by the foot of room you take up and not the actual boat length. How will you use the walk through with the dingy on the davits? Davits are not that hard to make BTW  

ben solomon

ben solomon

Bob 04 H260

Bob 04 H260

The above points are all things to consider when getting davits. We had our davits made by Ocean Marine Systems and are very pleased with the results. They custom build them for the model of Hunter you own, the size and weight of your dinghy and motor, if you want solar panels etc.. We have a 6:1 tackle on the transom end of the dinghy for the motor and only need a 4:1 for the bow. They supplied the davits to the Hunter factory after consulting with Hunter on each new model, so you can be sure they will not damage the stern rail on your boat. We can still use the swim platform, open lockers etc. with dinghy hauled up. In our case the dingy is mostly over the swim platform and have never been charged additional for a slip. They fold in when not in use or boat is hauled. Bob (no connection, just a very satisfied customer)  

Attachments

DSC_3822.JPG

RHUMB RUNNER

I would check out St Croix, the blocks our built in the end of the davit so when you are pulling up you don't get a twist in the block. They have two sizes for different load requirements. They will help you with the proper way to mount them or custom make you a mount.  

Maine Sail

capi6289 said: Hi, I just bought a Hunter 466, with a dinghy and no davits, I prefer to have it on davits and not the fore deck, I read allot about Nova Fore Spar, but they have weight limits of 300 LBS my dingy weighs 225LBS with outboard 335 lbs, what davits are recommended to support the weight and avoid swinging with healing, or weather issue. Bill Click to expand

Mariner356

I also have an Ocean System on my Hunter 410 (2000) and have been very satisfied. I have a walk through transom and can still get into the water going under the dinghy on the stern platform. I'm also retrieve items from the two stern lockers as well.  

catamaran sailboat davits

artboas said: Well, this wasn't a trivial project. It took the better part of last summer to perfect it. I wanted together best possible set of Davits for a 49, and here is what I came up with. There are built in winches with dynema line. Approximately 10:1 ratio on them, and you can crank up the dinghy with minimal effort. You can definitely haul up a dinghy with outboard on these, and not worry about rigidity. FYI, I stiffened up the stern with internal 3/8" glass. For an initial test, I put someone in a bosun's chair, and cranked them up from the water surface. Literally two fingers on the winch for cranking 150 pounds was all it took. Fantastically successful project View attachment 72554 Click to expand

catamaran sailboat davits

Happy Together

artboas said: Last photo was grainy, Here's a better one <img src="http://forums.sbo.sailboatowners.com/attachment.php?attachmentid=72555"/> Click to expand
Happy Together said: Art I am jealous of your Davits. Mine are ocean marine and work Well and I lift my AB 9 VL with 2 stroke 15 hp the only problem is in big waves the boat is hard to secure to avoid the stress and strain of movement. Do you crank yours to the point where the boat is firm against the bottom side if the davit? Click to expand

Scott NIelsen

Scott NIelsen

ben solomon said: I have davits on my 37.5 legend. Because of leverage and weight limits, my davits put the dinghy about 3 feet off the cockpit floor. I makes for a nice outdoor storage area . If it's a short trip, i keep the engine on the dinghy. Longer trips, engine on the rail. I inherited these from the PO. One suggestion.....if you are going to have new davits made, consider future needs like solar panel mounts and/or wind generator mounts so you won't have to go back and retro fit. Ben Click to expand

Sure I can. Next time I go to the boat, I will take some photos. I have a few sailing vids that you can see the dinghy on the davits if you would like that in the meantime. They are on youtube. Ben  

I don't know what are Best. All I can say is that I have St Criox rotating ones and I don't like them (but my money is spent so am going to live with them)  

Don Lucas said: I don't know what are Best. All I can say is that I have St Criox rotating ones and I don't like them (but my money is spent so am going to live with them) Click to expand

Pilgrimtex

When my Beneteau Oceanis 37 arrives it will be outfitted with Kato Marine "Voyager" Davits. Each arm is capable of lifting 420 lbs. http://www.katomarine.com/saildavits-voyager.htm They would be great on your size Hunter. They are usually seen on the larger sailboats like yours but I want a strong davit system that is independent of the push pits. I will also mount solar panels on them.  

seadaddler

Ocean Marine I have ocean marine davits on my 2007 H-36 that came off a 410 hunter and they are very heavy duty for sure what I like about them is the you have a option to install them so the height is so to look over and out the back with good view and my stern light is visible and access to my stern compartments also and yes can step under and out the stern and have had others come aboard while dinghy is up,I have double stainless bar to stop swinging and can secure dinghy with straps or line to secure it against the arms and double bar. I have 9'6'' with aluminum floor and 8hp motor and usualyy sail and motor with motor on dinghy and as I said I can pull up against the arms and double cross bar with line and the dinghy stays nice with out swinging all over. I think it is a very well built system with arms that extend out to keep dinghy out a way from stern and not to fold up if needed. Nick  

seadaddler said: I have ocean marine davits on my 2007 H-36 that came off a 410 hunter and they are very heavy duty for sure what I like about them is the you have a option to install them so the height is so to look over and out the back with good view and my stern light is visible and access to my stern compartments also and yes can step under and out the stern and have had others come aboard while dinghy is up,I have double stainless bar to stop swinging and can secure dinghy with straps or line to secure it against the arms and double bar. I have 9'6'' with aluminum floor and 8hp motor and usualyy sail and motor with motor on dinghy and as I said I can pull up against the arms and double cross bar with line and the dinghy stays nice with out swinging all over. I think it is a very well built system with arms that extend out to keep dinghy out a way from stern and not to fold up if needed. Nick Click to expand
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20-11-2010, 19:14  
, I am trying to solve the issue of how to secure the hanging on the .

I have got three holding the to the arch and solid bar holding the stern and the painter holding the bow in position. But still so, the dinghy moves a lot. What is the best way to secure it, in sea-movement and in case of waves filling the dinghy?

I have seen other cats having eyes attached to the catamaran's and a ratchet strapping the dinghy in position.

Simon
20-11-2010, 22:33  
Boat: 1978 CT48
?
Thats what I've done and it doesent move at all...the even sit in it.
I did take car to keep the transom lower so the will drain out.
20-11-2010, 23:40  
Boat: Kalik 40
.... bells ring]
21-11-2010, 01:54  
Boat: 30ft Catalac 900 "Rubessa"
21-11-2010, 02:55  
Boat: Super Van Craft 1320 Power Yacht
. With chafe pads sews into the dinghy cover any minnor movement did not cause damaging wear. Covered most of our miles like this - complete with hanging off the transom.
For longer passages on bumpy seas we had two of the simple 'helicopter' rachet straps to go around the dink and each davit. Cranked up the dinghy definately would not move.
JOHN Go see our blog at
21-11-2010, 05:09  
Boat: PDQ Altair, 32/34
, I am trying to solve the issue of how to secure the dinghy hanging on the davits.

I have got three holding the dinghy to the arch and solid bar holding the stern and the painter holding the bow in position. But still so, the dinghy moves a lot. What is the best way to secure it, in sea-movement and in case of waves filling the dinghy?

I have seen other cats having eyes attached to the catamaran's and a ratchet strapping the dinghy in position.

Simon
21-11-2010, 05:26  
Boat: 31' homebuilt Michalak-designed Cormorant "Sea Fever"
in the , we met a couple who told us this story: They were a couple of miles , sailing downwind. The dinghy was up in davits and one of the lines had worked loose. So the husband leaned back out over the transom to fix it. The wife was at the facing forward not aware of what he was doing. Somehow in the process, he fell . No on. He gave a suitable scream, but wasn't sure if she heard him. She did, but had trouble rounding the up. She was losing sight of him. Then she couldn't get the started. Luckily they had friends on a buddy about a mile behind; she hailed them on the and they came along and fished the husband out.

Just a cautionary tale -- don't let your dinghy davits kill you! Also, not a bad idea to wear a . . . .
21-11-2010, 05:50  
Boat: PDQ Altair, 32/34
, we met a couple who told us this story: They were a couple of miles , sailing downwind. The dinghy was up in davits and one of the lines had worked loose. So the husband leaned back out over the transom to fix it. The wife was at the facing forward not aware of what he was doing. Somehow in the process, he fell . No PFD on. He gave a suitable scream, but wasn't sure if she heard him. She did, but had trouble rounding the boat up. She was losing sight of him. Then she couldn't get the started. Luckily they had friends on a buddy boat about a mile behind; she hailed them on the and they came along and fished the husband out.

Just a cautionary tale -- don't let your dinghy davits kill you! Also, not a bad idea to wear a PFD. . . .
21-11-2010, 06:10  
Boat: Leopard 42 - JAMU
21-11-2010, 06:18  
Boat: Leopard 42 - JAMU
in bumpy 20-knot conditions, dropping one end of the in the water and damaging the attachment on the other. I used a harness and tether (which I was wearing anyway). It would have been SO easy to go over. The water was cold and I'ld be dead.
21-11-2010, 06:53  
Boat: FP Bahia 46
part of the dink and having a 3 point point at each end keeps it from moving. I finally figured this out halfway down my and it worked great
21-11-2010, 07:28  
Boat: CS36Merlin, "La Belle Aurore"
21-11-2010, 07:47  
21-11-2010, 08:13  
Boat: Allures 44
21-11-2010, 09:26  
Boat: Roaring Girl: Maxi 120 ketch, 12 long
with davits. On any offshore or lengthier the dinghy comes apart and is nested on the foredeck but we do use the davits on shorter passages.

We have padded the davits to protect the dinghy, which is then hauled up very tight. The bow and stern painters then go round on the davit arms and over the dinghy and get hauled underneath her and tied off on the pushpit. (This is actually the fiddliest bit.) We also have a big (one big tear drop) and this travels off the pushpit hauled tight under the dinghy and securely tied on. There is also a small around the neck of our to protect it from the dinghy.

This all sounds a bit fiddly but we are now v quick at getting it sorted. Eitehr can do it alone but its much easier with two.
 
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