Davits revisited

[quinsky]

I know there have been several posts regarding dinghy davits but I have another question. My C28 has Weaver davits and the boat wake hits the ends of the dinghy at cruising speed. I have the raised davit heads and I moved the yoke pads further outboard on the dinghy so the it sits a little higher. This helped but did not correct the problem. While on a recent cruise the dinghy was bouncing around and I discovered that one of the stand off pads had ripped loose from the dinghy. I was able to secure it and continue. My first question is if it would be feasible to install blocks made of King Star board to raise the davit heads 2-3 inches?

I keep the motor on a mount installed on the transom. I also have a Garhauer lift for the motor. Withe all this and the stand offs it gets rather crowded on the swim platform. Before I raise the heads I want to research installing a traditional lift type system that will hold dinghy and motor horizontally. The Forespar Nova system is one I'm looking at. This system would mount on the swim platform and attach to the stern rail. I'm concerned that the stern rail may not be sturdy enough to support it. Has anyone installed a similar type davit system?

 

[Cutwater28GG]

I have a 28 with the weaver davits.

The 28 is stern weight sensitive. I can trim out the water hitting the dingy but I run a very light setup. Takacat dingy at 30lbs and a 2.5Hp outboard at 30lbs. nothing else on the stern. sounds like you have a lot more weight on your stern than me. I would start by getting rid of the weight first...

I can still get some significant water into the dinghy if trimmed wrong. and if the cockpit is loaded with people. weight placement matters in boats like these. they are not heavy boats.

There are two types of weaver davits. those with a 4 inch riser and those without. the 4 inches helps.

I cant see an issue with raising the davits in height. just note that getting the dingy on to them from the water will be more difficult.

also I find it useful to brace the dinghy with a line to stop if bouncing as much and putting pressure on the glued on mounts.

 

[TexasEye]

The Livingston 7.5 is 90 pounds dry and has beat the tender and tug up pretty bad. I'm in the process of repairing the tender at the weaver mounts as we speak. The Tug is next as the struts have damaged the tug at the mounts (spider cracks)(hopefully only gelcoat). The tender aft mount is cracked thru to the aft hole. I cut out the damage and laminated it back together, I'll put a larger backing plate (Stainless) on both sides of the glass.

I don't like the setup at all, no visibility aft and the weight has to be offset forward to trim, the 8 foot x 5 foot tender gives a 40 square foot air brake and probably catches water too.

However, I've looked it over and think the Livingston and weaver mounts located where they are is the best solution for this tender. I keep the tender stored unless traveling and even then am reluctant to take it along...I forgot the additional 45 pounds plus for the tender motor...

Tex

 

[Red Raven]

Quinsky,

I don’t know if you have tried this but for us adding ratcheting straps hooked to the inside hull of the dinghy (not the tubes and not connections above dinghy midline. We use the inside bow eye and the lower transom eye) have solved the problem. See the thread linked below:

http://www.tugnuts.com/viewtopic.php?f=2&t=6518&hilit=Water+spray+dinghy&start=30

On the R27 the stern rail on the tug is above the connection points on the dinghy and tightening the straps causes the dinghy to lift, up to about 1.5 inches. I don’t know if there is a similar rail connection on the C28 to use. This assumes you have the stainless standoff brackets connecting to the upper part of the dinghy. On our boat this took care of the issue.

Since posting the thread above I have purchased stainless ratcheting straps that work perfectly and do not rust.

Hope this helps.

Curt

 

[Kenaithab]

Currently I mount our Highfield 290 on Weaver davits on our 2016 R29 which is great when the boat is being trailered. However on the water it is inconvenient and slow to launch the dinghy and then move the 6 or 9.9HP outboard from the mount on the transom of the R29 to the transom of the dinghy. So, next week I will be receiving a Kato Marine Island davit system which I will then install on my swim step. This should allow me to keep the outboard on the dinghy while underway. It attaches to the swim step, step railing and has two braces that attach to the railing and about 10 inches farther forward on the swim step. I already have another brace from the railing to the swim step railing that I use for my detachable St. Croix Little Crane. Fortunately this is also the same side as the heavy end (outboard) of the dinghy. I will try to find a way to adapt the Weaver standoff bracket to further reinforce the swim step railing on the other side. If my measurements are correct, I will be able to keep my Weaver davit system for towing on the road and use the Kato davits on the water.
Kato reports having done a number of davit systems for Ranger Tugs with good results

 

[Cowichan]

I just purchased a Hurley H2O 36” extended davit for my 2018 C30S. I’m going to enjoy the new view to the stern, less “sail” in the air, easy lift for my Highfield 290 and 2.5hp Yamaha, less noise reflection. Of course, I’ll lose my swimstep but for me the trade-off is worth it. I had the dinghy on Weavers with the tall stand-off but without a winch I had trouble lifting the boat back up and had to lift the motor seperately as well. The centre of gravity with the Hurley is in the same spot as it was with the Weavers, although the dinghy now sits flat and pulls up much more easily.
Port Boathouse will be installing for me in the first week of March and I’ll Let you know the “reality” of the situation. Chatted with several guys that have the Hurley, and all were very happy. Based on my measurements the Highfield should just fit, and keep my propane box.

 

[BB marine]

I just purchased a Hurley H2O 36” extended davit for my 2018 C30S. I’m going to enjoy the new view to the stern, less “sail” in the air, easy lift for my Highfield 290 and 2.5hp Yamaha, less noise reflection. Of course, I’ll lose my swimstep but for me the trade-off is worth it. I had the dinghy on Weavers with the tall stand-off but without a winch I had trouble lifting the boat back up and had to lift the motor seperately as well. The centre of gravity with the Hurley is in the same spot as it was with the Weavers, although the dinghy now sits flat and pulls up much more easily.
Port Boathouse will be installing for me in the first week of March and I’ll Let you know the “reality” of the situation. Chatted with several guys that have the Hurley, and all were very happy. Based on my measurements the Highfield should just fit, and keep my propane box.

I'm interested in your project. I wanted to install Hurley on my boat. I emailed my dimensions to Hurley and he was worried about the elevation of the Dingy ( platform not high enough) and issues with a following sea. He said the installation will fit but he didn't recommend using the system my C26 Cutwater with the RIB I have. I know your boat is larger, how high is your swim platform off the surface of the water? Please post reviews on the system after installation. The Hurley has many advantages over the Weaver system.

 

[Cowichan]

Brian, I will send a write-up and photos after my hopefully successful installation. My swim grid is roughly 12” off the water. The stern doesn’t sink as much underway as it did in my C28...