Mahe 36: Dinghy and Davits

[downunder]

Originally Posted by RKsailsolo

That catamaran dinghy is a thing of beauty. Did you build it? Lots of molded surfaces. Fantastically light no doubt due to design feature that blends bulkheads with logical curvature break points maybe eliminating/minimizing need for cores?

At that weight I suspect it is built with foam core. would not be so light with F/G alone.

[downunder]

Originally Posted by 1rkghost

Are there drawings of this dinghy with dimensions I'd love to make one

Another proven lightweight cat dingy to ponder. You can buy plans, kits.

Boat Designs and Kits | Spirited News

Tender Catamaran Kits | Tender Catamaran Plans | Ripple Tenders

[rabbi]

Have you ever tried to rig a sail on it? Looks like fun in the anchorage.

[darylat8750]

I add my request for plans. Even dimensions and specs. with pictures would be appreciated. The Spirit plans are too pricey for my blood but I don't expect them to be free.....

[Boatguy30]

The ripple dinghy is a pretty simple design really. The hull sides look to be a pretty standard 15 deg flare and a bit of a V to the bottom. I plan to nurse an old RIB along this winter, but then build a new tender next summer. Perhaps will just draw something up myself.

[Tiemates]

Just back from BVI where we have put our new to us 2007 Mahe to bed for the hurricane season. Was thinking of switching out the existing double-braid dinghy davit lines with Dyneema. Has anyone done this? What size Dyneema? And does anyone have the lengths required.... forgot to measure before leaving.

[Jef & Marin, Netherlands]

Regarding using dyneema for your dinghy lifting line, around 2 mm diameter of dyneema will have a breaking load of around 200 kg, which is more than you will probably be able to pull. Taking any thicker is quite useless. I suggest you use it with the mesh steel gloves some butchers use to avoid chopping off their fingers, not to cut your hands with this thin dyneema

[Tiemates]

Thanks Jef. Any idea approx. how long each line is?

[Jef & Marin, Netherlands]

Sorry, no idea about the original length.
I had a 6:1 instead of the standard 3:1. Very useful especially on the outboard side.
You can also find older useful posts:
- How to change to 6:1
- A block at the front end of the davits makes the ergonomics much better
- The aluminum end pieces of the davits need to be modified since they are damaging the lifting line. These end pieces have been designed for horizontal installation, for slant installation they need bigger cutouts.

Note that if you like to lower the dinghy when your boat is on the hard you need longer lines. I had to swap the lines to lower the dinghy to ground level (after making a backup line)

[Tiemates]

Thanks again Jef. The info on lowering the dinghy to the ground is particularly helpful..... never gave it a thought.

[downunder]

Video of a ripple tender.

https://www.youtube.com/watch?v=seTJ...are_video_user