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Dingy on platform without davis?

Discussion in 'Dinghies' started by Mightychan, May 7, 2017.

  1. juggernaut1

    juggernaut1 Active Member GOLD Sponsor

    Apr 19, 2015
    Perth, Western Australia
    2006 38 Sundancer
    8.1S / ZF 63V Drives
    .................or a smaller outboard :grin:
  2. scooper321

    scooper321 Well-Known Member

    Jul 4, 2015
    Baltimore, MD
    2003 Sea Ray 400DB
    Twin Cummins 6CTA-8.3
    True. That's what I'm doing now, trying to figure out what size I can work with.

    Sent from my iPad using Tapatalk
  3. juggernaut1

    juggernaut1 Active Member GOLD Sponsor

    Apr 19, 2015
    Perth, Western Australia
    2006 38 Sundancer
    8.1S / ZF 63V Drives
  4. Jimmy Buoy

    Jimmy Buoy Well-Known Member

    Dec 3, 2008
    Sarnia, Ontario, Canada
    340 Amberjack
    twin 8.1S 370 Hp + 4.5 Westerbeke Genset
    I didn't want to have any "toe stubbers" left on my swim deck when not having the dinghy stored there, so I modified another CSR member's design (Dom - who made his own "Dom's Davits"). Dom has since passed away, but his davit ideas live on! Thanks Dom!!

    The idea is to have an easily loadable platform where you don't have to remove that heavy outboard motor to store the dinghy. Check out my photos...

    I used a similar idea as a trailer hitch receiver mounted under the swim deck. When the pins (this is an old photo during the construction phase before drilling the lock pin holes) are removed both arms can be removed and stored onboard. Nothing is visible unless viewed from very low on the water behind the boat.


    Here's some individual pieces cut, placed, but not yet welded...


    Here, you will see the two support arms locked in place with the locking pins.


    A view of the dinghy on the supports as usual. It's stored like this all winter (just coming out of storage in the spring)



    With this system, it's easy to deploy (two ratchet straps) by tipping it and having it slide into the water. It's also easy to pull back onboard, although the key to this is a pulley (block and tackle) system which I tie to the beverage railing and hook to the dingy. It can be pulled back on without assistance relatively easily. I cut all the tubular aluminum and had a friend weld the pieces together. Found a playground manufacturer in our area that had the plastic laminated planks that I used for the supports. After 5yrs or so, I really like the davits and usually just leave it on the boat - sure saves the dingy from filling with rain water, not to mention keeps the bottom (aluminum hull) nice and clean.

    It's a possible option for you to design/build something similar if you like the idea.
    juggernaut1 and be_prepared like this.
  5. sarbog

    sarbog Member

    Aug 22, 2008
    Emerald Isle NC
    '05 340 Sundancer
    Garmin 7610xsv
    1951 Penn Yan 9' Aerodinghy/2018 AB 9vl w/ 15 hp Evinrude 2-strk
    Twin 8.1 Horizons v-drives
  6. sarbog

    sarbog Member

    Aug 22, 2008
    Emerald Isle NC
    '05 340 Sundancer
    Garmin 7610xsv
    1951 Penn Yan 9' Aerodinghy/2018 AB 9vl w/ 15 hp Evinrude 2-strk
    Twin 8.1 Horizons v-drives
    How do you like the Nautley Davits, and what size did you buy? I'm on the verge of buying the XL as the platform on my '05 340 is fairly high off the water. The 9'6" Highfield is also in the final 2. The other possibility is a 10'2" Walker Bay. Weight of both is similar but I'm a little concerned with that extra 8" of length
  7. JVM225

    JVM225 Well-Known Member GOLD Sponsor

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    I have the Nautley Dinghy Ramps. I was lucky. They came with my boat. I just used them with my 10'6" Newport (132 lb's) and 9.9 4 stroke Mercury (88lb's), and full 3 gallon gas tank (24lb's).
    I was able to pull it up (motor end first) by myself with some effort (I'm 63 years old, 5"11, 180 lbs), but it was much easier the next time I did it with a friend.
    So, in that regard they are great.
    It was fine on plane for an 8 or 10 mile trip each way to a spot for a day in the hook, but I was nervous about the way it all bounced around in a little chop with some wakes we encountered. I don't think I'd want to leave the motor on for a trip longer than that, or if I were going through an inlet to the ocean. I'd be afraid that while the dinghy would stay on the swim platform because it was securely tied, the 9.9 would probably destroy the inflatable's transom and possible break off from all the bouncing.
    It bounces so violently back there that I tied a line to the little motor for the ride back so I'd be able to retrieve it if the worst happened.
    So as far as cruising around with the dinghy upright and the motor attached, I give the dinghy ramps less than rave reviews.
    Again, they came with my boat, didn't cost me anything beyond the overall price of the boat, so they were a real score for me. But I don't think they are practical enough to justify spending a lot of money on them.
    While the 9.9 is a nice motor, I find it too heavy to take on and off of the dinghy all the time. As a result, I'm going to keep my eyes open for a smaller and much lighter dinghy for longer trips that is coupled with a smaller much lighter motor that I can remove and stow away easily when underway.
    I'm only looking to get from a mooring to a dinghy dock once in a while and don't need to break any speed records doing it.
    If I get the lighter dinghy, I'll use it with the Dinghy Ramps because I have them and they do make launching and retrieval pretty easy, but will still remove the motor for longer trips.
    The heavier Newport and 9.9 will be reserved for local stuff and puttering up and down canals near me.
  8. be_prepared

    be_prepared Active Member GOLD Sponsor

    Oct 12, 2015
    Mattapoisett, MA
    2002 Sea Ray Sundancer 340DA
    Twin Mercruiser Horizon 8.1 inboards
    I like the Nautley davits that I have on my 340DA, but it's a 2002, and the '05 has a much higher swim platform. I don't think it would be very easy to use the Nautley version I have with the newer 340's that have the integral swim platform, because I don't think the arms would reach the water, or if they did they'd be almost vertical. We were in a raft of CSR boats at Block Island this week, and one of them was Flipper, which I think is an '05 340. Beautiful boat, and the integral swim platform is very clean looking, but it's significantly higher than the "old" boats like my '02.

    I have the Nautley Dinghy Ramp HD, slide on extended with quick kit, which is the basic model. They have others with rollers, and they may be longer for higher platforms. It seems very capable of handling the weight, even under bumpy conditions, today for example I ran for about 2 hours in 3-4ft following sea conditions coming back from Block Island and the dinghy was stable back there. The Highfield 9'6" model with a 6HP Merc 4 stroke is what I am running. If you go much longer, and you may have trouble with keeping everything inside the beam. I backed into a stern-to bulkhead at Cuttyhunk with the dinghy in place, but it takes getting used to with the extra appendage.

    If you get one of their units, I can recommend the stainless steel tied down kit. It has nice stainless fold down pad eyes for your swim platform, and stainless cam style tie downs.
  9. AFD

    AFD Active Member

    Jul 29, 2012
    Boston Harbor/Falmouth Ma
    1997 Sundancer 290 The fat beam version
    Starboard 5.0 alpha 220HP
    Port 357 alpha 275hp
    4HP Yamaha for Dinghy
    This is damn near exactly what I drew up last year but I had to build a temporary top Mount out of time constraints. I had one bolt going through the end of the swim platform into the brackets underneath though to lock everything together. Smart minds think a like...and so do we.
  10. Loyd Dinneen

    Loyd Dinneen Active Member

    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    Thinking about the dingy addition also but only for the reason of getting my gog to shore so she can do her business, anyone else have that issue? What does everyone do about a dog on board and them doing their business? I was thinking of a inflatable in the water and lowering the dog down with a crab pot puller to the boat and then rowing her to shore. My boat is a 77 240SDA so I would inflate the boat anytime I need it or lash it to the front for each trip. Might add that the dog weighs around 75 lbs.(really need to walk her more)
    Last edited: Sep 30, 2017
    scooper321 likes this.
  11. QT1

    QT1 Active Member

    Oct 20, 2016
    Belair, MD
    Now, new to me, 1990 350 Sundancer, "Quality Time II". Avon rib w/ Yamaha 4 stroke.
    7.4 Mercruisers
    Being we just purchased our dinghy and motor I have looked at allot of support systems and really like the sling, which is only $275.00 on EBay. It is a simple yet effective way I think to carry the dinghy on the swim platform.
    scooper321 likes this.
  12. Bk124tt

    Bk124tt Member

    Apr 23, 2017
    Long Island NY
    2005 320
    Twin 350 MPI Horizons
    What do you do with the motor?
  13. daddyox

    daddyox Member

    Apr 1, 2007
    Connecticut River
    Sundancer 320 2004
    260 5.0 B III's
    I have a motor bag- and I'm able to set it under the cockpit table. Not the best approach but I can deal with it. It's a 6 HP, so not real small.
    Bk124tt likes this.
  14. Luis

    Luis New Member

    Nov 2, 2020
    1996 330 Sundance
    Twin mercruiser
    Just saw this post and I also bought the sling. I can’t figure out, for the life of me, how to work it. I tried for an hour and gave up.
    I also have davits on the back of our 330 Sundancer, but I need help...How do you strap a 10 ft zodiac to the back of the boat?
  15. Blueone

    Blueone Well-Known Member SILVER Sponsor

    Jan 24, 2007
    Lake Erie, Ohio
    2004 420 Sundancer
    Cummins 6CTA 450's
    I struggled with adding Davits to my boat for over a year...in the end I didn’t like anything and decided to drag it up on the swim platform...the dinghy is a Zodiac 310 aero...it’s a soft bottom so it won’t mark anything.... the motor in the pic is a 4hp....I bought a 9.9hp after this pic was taken. I just tie the bow to a cleat and tie the outboard to another cleat.... that’s it. I don’t go out in rough seas.... I have a pretty high swim platform.... it doesn’t move at all....quick to pull it up and quick to just push it off....I can’t walk back there so just hop off the starboard stern...not great but rarely need to be walking around back there... this is best pic I have

  16. Stee6043

    Stee6043 Well-Known Member

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    If you have davits safe yourself whatever hair you have left and stop trying to make the sling work. Man alive...those things are designed exclusively to frustrate otherwise sane boaters. I owned one...I wrote a review around here somewhere.

    Share some pics of your davits. That would help.

    Here's a quick photo. The boat in the foreground has the standard Weaver snap-davits. With these you have to attach pads to your dinghy. Cheap, easy option. You can see on the Tiara in the background of this photo what looks like Hurley H20 davits. Pricey but you don't need to remove the motor.

  17. Stee6043

    Stee6043 Well-Known Member

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    Here's a better shot of the snap davits. You can see the pads on the dinghy and the HORRIBLE gluing job.


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