Thanks to brilliant help in comments and directly we are here with version 2 of our own mast tangs to attach dyneema shrouds to the mast.
Lots of improvements since the last video to address concerns such as:
- should we use FR4
- bolt threads in FR4
- bolt hole size
- bolt hole position
- flat surface for bolt head/nut
Also we have added the end plates.
These first tangs are for our mizzen (which is small! Less than 85 sq feet which is under 8 m2). While working on this we have also been making huge progress on the lower support for the mizzen ie the mast foot and chainplates, they will be in the next video.
We know this is not the final version, depending on deliveries there should be a next version very soon with more significant changes :-)
Our goals are
- reduced potential points of failure compared to traditional tangs, pins and thimbles.
- a tang that is very Dyneema friendly without sharp bends or edges.
- simple for DIY, so much that replacement tangs can be made anywhere providing you have basic hand tools and the right materials (which realistically are going to be specialist enough to need to carry spares with you).
This design will be a huge cost saver if you are renewing the rigging on an older boat when you might otherwise need to replace several of the stainless steel parts of the original tangs even if you are fitting dyneema shrouds.
This is experimental prototyping of a design that began on our blog a couple of years ago. We have had loads of help improving the design which is very much appreciated.
In previous video's we have shown the chainplate backing plates we are fitting for Dyneema look chainplates. We have also shown strengthening the support for our mizzen mast foot. This is a significant next step towards being able to put our mizzen mast back up.
If you would like to encourage us then we have memberships or donations on Ko-Fi! at ko-fi.com/sustainablesailing/ Note that we receive 100% of all memberships and donations.
Or visit our shop at sustainablesailing.teemill.com/ for great hoodies, t-shirts and bags.
We are changing all the standing rigging on our 1977 Rival 38 to Dyneema synthetic rigging. That includes all shrouds, stays and even the chainplates for both masts of our ketch rig.
This is the 7th episode in our Dyneema series that will cover all the design choices, the practicalities of a completely DIY re-rig and then how it works out when we go sailing.
Our goal is a rig that is:
- stronger
- lighter
- cheaper
- allows us to sail faster
- lasts longer
- can be DIY maintained even replaced, anywhere in the world
We are refitting a 1977 Rival 38 for a Sustainable Sailing retirement in a few years. Three years ago, when we bought Vida she was in a very tired and damp condition with all original equipment and fittings (much of it not working). We have removed all the gas, diesel and paraffin equipment, and are installing all electric (motor, cooking etc).
Lots more detail on our blog at sustainablesailing.net/
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#DyneemaStandingRigging
#BoatRefit
3 июл 2022