Our CARBON rotating mast | Modified Catana42s
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- Опубліковано 5 вер 2024
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Where can I rescue one of these from the bin ? Amazing!
Super clever Mr Paikea. Crime to put all that black stuff in the bin, you and your crew are turning the tired old catana into quite an awesome machine.
This tired old catana can give most modern performance cats a run for their money 👍
Such a shame about the footage loss on the hard drive .... technology. Thanks team for the talk through on the rig, totally enthralled, yeah I know weird.
Glad you enjoyed it Rick. It's a cool piece of kit 😎
Barlow ?@!#%@#$&% Wow, very old school. The flatness for the winch pad on the mast really shows how big the chord of that mast is.
The art of repurposing. Matching old skool to high tech 😂
Thanks! I've been waiting for a full run-down on the rotating mast!
Thanks for that Shane, I learnt a lot.
Cool 😎
Great info. I just wish I was an accomplished enough sailor to understand the wisdom of it all. ;-)
Fascinating stuff! Thanks as always for explaining your choices!
Excellent video! Thanks for the beautiful information! Also, your young assistants seem like awesome helpers!
They are awesome 😎
Very informative and educational videos, congratulations.
Jib halyard is a step too far for me, at this level, but I'll get there, eventually.
Fair Winds and Following Seas
Thanks Shayne, for a informative mast film 👍
Brilliant work
Truly awesome!
Thanks for sharing that!
There's a couple of pieces of software you might be able to recover some of your lost hd data. Where it moves very small bits at a time. Carbon Copy Cloner I think is one. But I'm sure you can find details re this on the ytube!
At the end this will be more of a “young barnacana” instead of “old catana” 😂
Ok.... so where can I get me one of them masts that someone is about to put in the bin....? Phil
What would it cost to purchase a carbon fiber mast very similar to Paikea's mast and bow sprit setup in today's US$? Thank you.
Duuuude! I dunno... Mega bucks.
From memory (and don't quote me on this) an AC rig from this era cost $600k finished. That was 20 years ago. It was destined for the bin when we got our hands on it as it was worthless old technology.
The mast was long enough to make the rig, front beam and longeron for Paikea. I was able to recycle/repurpose a lot of parts eg nitronc rod rigging into dog bones for stay attachments, gooseneck, sail track, blocks etc.
The expertise to put it together? Well there just aren't that many people around who could do it. So that cost is an unknown.
Paikea's rig is all high modulus carbon with a wall thickness of 18mm on trailing and leading edges. It's meant for a 75ft mono with 20 tonnes of lead on the bottom. If I had to build a rig for Paikea I wouldn't build one like this. I just had access to this section and adapted it to make it work.
Another great video👍 What solution did you use for mast rotation compensation for the wind sensor?
Nothing at the moment as my instruments are too old to handle the mast rotation.
Great use of a used mast. I just got a used 24m carbon mast that's 420 chord and 200 wide for my 15x9m pod cat. I think its going to have to be rotating due to the width of the thing. It already has a single spreader but I wonder if I can reduce the weight and windage by eliminating the spreaders. The 20T donor boat has 3 to 4 times more righting moment of my podcat so I was hoping I could use some of the excess strength to get rid excess rigging.
What are the dimensions of your new carbon mast and how do they compare to the old mast? Length, chord, width weight etc?
Thanks
Great video, so a couple of questions: 1) is their any additional risk of a lightning strike being more catastrophic on a carbon mast than aluminum? Did you consider running a grounding strap down the mast that you could throw into the water while at anchor to give it a path to ground? 2) what did you mean by the semi-flexible solar panels you were wanting to install and why replace the glass panels that you have there now?
Cheers!
2 reasons for semi rigid panels 1) you can walk on them 2) the 2 glass panels are heavy! They weigh more than our entire cockpit cover. Semi rigid panels are lighter.
We do not have anything for lightening strikes. Carbon is more conducive than aluminium but the results of a strike will be the same for your boat regardless of the material used for the mast. There are no miracle measures to prevent a lightening strike. If you are unlucky enough to be struck by lightening you just have to deal with the results.
@@youngbarnacles Thanks for the feedback! I watched an Outremer owner video (Biotrek) explain how he ran a heavy gauge copper wire down the mast to a "dongle" with a dissipater on the end that he throws into the water. But...of course, he hasn't been hit with this system so who knows if it works. My only question is having worked with carbon fiber and high voltage, the damage can be dramatic potentially not allowing you to sail safely, where as with the aluminum the likelihood of catastrophic damage keeping you from continuing to sail safe is virtually nil. I'm guessing like a lot of things in sailing, this is just a risk you need to be willing to take when you have a carbon mast, or I'm I overthinking things?
Let's see how he gets on with however many thousands of amps going through his copper wire at several million volts.
In terms of carbon verses aluminium- there are plenty of examples of aluminium masts melting from a lightening strike. I would not say an ally mast is safer than carbon. It's just pure luck when it comes to lightening as to whether you will be hit and the severity of the strike.
@@youngbarnacles Cool, that is what I was hoping you would say. The problem is there are so many variables, getting real life data to prove or disprove lightening mitigation is impossible because of all the variables and infrequency of occurrence.
Exactly 👍
How was that mast made? Was it wound on a mandrel then baked in a vacuum? If you had the gear (winding machine autoclave etc) and made your own, any idea of what would the rough cost of the fibre and epoxy be?
No. This is not filament wound mast. This mast is all prepreg carbon laminated in a female mould. The size of the autoclave needed to cook it means it would not be worth making one yourself regardless of cost of materials.
do you have an opinion on schionning arrow catamarans? i'm torn between plans for arrow 1200 1201 and 1280s
I guess it depends on whether you are building one yourself or buying a second hand one. As these are usually homebuilds the biggest issue is knowing how well it was put together. Are you planning to live aboard? It's hard to comment on your particular situation but they are generally good boats. Good luck with your decisions 👍
@@youngbarnacles yeah, liveaboard, the plan is to make the hull as quick as possible, fair it, paint it and drop into the water, then finish it, i was interested in building a boat for ~5 years, working with composites is quite curious and having an actual mobile home is nice too, especially given the fact that i cant go to my own apartment which is in russia.
also cats have a big workspace and i like to mess around with stuff
Thanks, great video as always. Side question, you mentioned reefing. Have you it setup so you can reef mainsail downwind or do you always turn upwind? If you do downwind it would be great with a bit of info/video on how you do it. Thanks once again and keep up the great work.
We can reef at any point of sail at any time in any amount of breeze. A boat that can't do that is dangerous.
We have a video on reefing in production
Do you have to adjust the halyard as the mast Rotates from one side to the other as it moves further away and gets closer depending on how you set the rotation? I’m trying to rig my current rotating mast so the lines can run to the cockpit. Mainly the topping lift and Main halyard. They currently come out of the side of the mast and then down to the winches on the side of the mast.
No adjustments are needed to rotate our mast👍
Thank you! Do you have to go to the mast while reefing?
Just to clip cunningham on. We have a video coming on reefing
@@youngbarnacles I was wondering the same.
All reefing is done from the cockpit. We do have to come up to mast to clip on cunningham but that can be done after we reef.
The halyard on the winch is not for reefing the mainsail. That is for the foresails eg headsails/downwind sails/ Code 0 etc
@@youngbarnacles Simple AND pragmatic. Well thought/well build.
Other than saving 50kg, have you noticed any speed benefits or other unexpected benefits or downsides? You might have explained it earlier, but how does one come about finding a rotating carbon mast in the dumpster?
Rotating the mast reduces drag and increases our speed. The upwind speeds are a significantly faster. The only downside is our instruments are too old to deal with rotation compensation.
We managed to get our hands on an ex IACC rig. I had to do a lot of modifications to get it to fit my boat and make it rotating.
More info in this video
ua-cam.com/video/mDQNW2WQ9pA/v-deo.html
@@youngbarnacles if I recall, you have a background in rigging, so this is all in your wheelhouse. Cats generally don’t point very well into the wind, did it help with that? What kind of boost in speed did you get upwind? Concerning your instruments, have you considered building a chart plotter using a raspberry pi and running open cpn? You seem like the type willing to tackle difficult projects rather than spending $10k + on solutions.
@@nutsandbolts432 for a chart plotter wouldn't you just use a cheap tablet? Like only $200 dollars for a quality Samsung, about the same price as a R PI and screen anyway. Less work and more powerful. Inside the cabin I would use a tiny PC with a 32 inch screen with a mouse. Like GreatCircle does. With 32" you can see massive map areas far easier and the screens are pretty cheap less than $500 on sale, available everywhere, and with high resolution (2560*1440 = 3.6 million pixels). Plus they can be used to play movies.
This is what we use for nav on Paikea ua-cam.com/video/4YRCUtfUPKE/v-deo.html