Snap Davits - What should we know that we don't?

[POD II]

Looking to buy some Snap Davits to attach our tender (2.4m Inflatable) to swim platform of our Windy Khamsin.

Ideally want option to have tender vertically without blocking swim platform when pottering about or berthing, as we use swim platform to get on/off.

We also want to be able to hinge the tender forward against rear of boat when we're "going pace" (as the kids call it) to avoid having an 8' x 4' air brake on the back.

Any advise or pointers as to who to speak to would be much appreciated.

Thanks.

 

[mparrish]

We used Weaver Snap Davits purchased from PolyMarine on our last boat. They worked brilliantly. We custom made Stainless standoff arms to support the dinghy in the vertical position. While they spanned across the bathing platform they held the dinghy well and you could still step over them for access. If you need details I could probably find some photos with a bit of a search.

 

[[2068]]

One way of doing it would be to have two sets of standoff arms.
The longer set would be used in pottering mode, and a shorter set for turbo mode leaning forwards.
Or you could run one set of standoff arms to the radar arch? Depends on geometry.

Also, having the bottom brackets extending a few inches rearwards makes it much easier to launch and recover ... check dimensions!

.

 

[rafiki_]

Yep, Weavers work very well.

 

[David2452]

Do not have the stand offs at right angles to the transom and tender as this allows sidewayd movement under way and extra strain on the davit pad joints, mount them so they are at an angle which helps prevent this, it can also help with access to transom doors etc. Follow the instructions re gluing on the pads religiously. If you plan it carefully, mount the brackets first then put the tender in the water and draw around the pad positions it will ensure the tender sits nicely when deployed for boarding and easy to engage when returning.

 

[tico]

Wise words from the above re mounting the pads etc.
FWIW we just use the dinghy painter to secure the dinghy to the rear rail. Pull it up tight to avoid the 'parachute' effect when travelling at warp speed and just allow the dinghy to fall back just beyond the vertical when accessing the bathing platform.
seemples!

 

[oGaryo]

my setup is shown clearly 30 seconds into this video of my tub, the standoff arms are home made and adjustable to half the length shown. If you want to avoid the air brake (ex RAF?) effect, you can shorten the arms to bring the dinghy in to rest against the transom whilst underway