BOAT BUILD: We cut the bow off. [E87]
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- Опубликовано: 4 окт 2024
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If you plan on using PVC pipe for your chain guide, you could possibly use one inside the other. The outside layer could be permanently installed while the inside layer could be left semi loose and replaceable as a wear layer.
“Cardboard aided design” that is the best line. +1 for Evan
I had a boatyard in my youth. Our inspection cat once stowed away on a client's sailboat and got a 20 mile downwind run till they found him in the vee birth. They actually sailed back to redeposit him on the quay.
Typical boat inspector behavior.
@TheDuracellProject After inspector pumps 0:47, the inspectors need some time at sea to clear their heads.
“All your nutritional needs for the day” from a jug of green stuff? You must be some hulk!
Evan rocking his Zululand Yacht Club shirt
Best quote of the year "I'm allergic to moving parts" Me too Matt, me too....
I can just hear the boat saying "Cut me loose, baby". 🤣
“allergic to moving parts” … Amen brother!
I love watching you and Aladino work.
Looks awesome! We have a simple version of that, but in stainless. One of the things we thought ahead about was the ability to wash down the chain as it comes up. Being from the SF Bay, we have disgusting mud on our chain and anchor any time we pull it up. Those holes in the prod let the mud and water fall through before it all goes into the anchor locker. That exact solution may not work for your design, but just an issue to think about and plan for if you’re able to. You could do a fancy-boat spray nozzle built into the anchor roller since you’re building it from scratch! Food for thought.
The anchor has a large plan form that pounds when the bow dives. Offshore we end up removing the anchor and storing it below. We have a Rocna like that one, only larger. You might want to plan to remove it for any distance sailing.
The waves hitting the big anchor at sea in that low position will drive you crazy let alone the drag. The anchor set ups you show on the other boats are tucked away and their systems are designed for anchoring in a marina.
Best boat build show on RUclips!
Dont forget that in many parts of the world when you pull up the anchor you will have tons of thick mud attached to the chain. You better decide who has the job of cleaning it out of the chain locker.
Might consider installing a sprinkler system underneath/near the rollers to rinse the anchor rode as it is being retrieve!
Your ability and skills will make your boat a dream. I am writing from Porto Vecchio in Corsica. When you make your grand tour don’t forget the Mediterranean. Bravo et bon travail. Mike
"So, I'm gonna cut off the bow" ... LOLOL, best start to any of your videos!!!!! I was like WHAT? Great job as always!
How cool is Evan for giving his wealth of knowledge for free 👍✌️🇬🇧
The bow sprit idea looks great ! I agree with having the anchor chain under the deck . Might be a good idea to have a replaceable bushing where the chain enters the hull or even a "bumper" to protect the hull from slack chain. what type of material for the chain tube? my first thought is Delrin.... " has a high tensile strength of 10,000 psi at room temperature with no yield point. It also has high stiffness, with a 410,000 psi stiff flexural modulus. Delrin's elongation at break is 10 to 40%. The material displays high fatigue resistance, withstanding cyclic compressive and tensile stressing of 5,000 psi"
I have personally made chain sliders for race bikes from Delrin. it is super quiet in operation and extremely resistant to having a chain rubbed against it.
We are considering PVC pipe. It doesn't really take any load, just keeps the water out of the boat. Local UHMW wear bits were the chain might rub on the entrance.
The process is in focus for excellence in execution. Keep building it, and soon water will appear.
DANGER. If that anchor swings a bit in the water, it will swing towards the hull and poke a hole. There should be an easy fix to prevent that. Nice job!
I'm happy you used my idea of using the rubbish chainplate as a bowsprit.
thanks for the telepathic idea
I love your K.I.S.S. approach to the anchoring system. It's really smart to have no moving parts, nothing to service, nothing to wear out, no rusty chain staining and gouging your deck. I work in IT and one of my guiding principles with hardware/software systems has always to "keep the parts count as low as possible". I look forward to seeing your videos every week. They are always fun and I always learn something.
Cruising boat, I’d be thinking about how I’d manually retrieve the anchor if (when) needed.
Have you considered:
1. Powerful sea water pump and hose to wash crap off chain and anchor?
2. Stuffing the bow into a wave and forcing sea water into the forward facing hawsepipe?
3. Will the chain locker have gravity draining holes overboard?
4. Access to chain locker when there is a jammed chain pile?
5. Will your windlass capstan and motor all be below deck?
Excellent video as always. Your esthetic for the bow looks beautiful.
1) yes, we will have a way to rinse the chain 2) we're thinking about it 3) yes 4) yes (there will be a hatch in the deck) 5) haven't decided yet
Wow...What a great look to that sprit. I even like it without the top of the bow. Perhaps keep the present look with that cut a way...very industrial, yet fully functional.
Perhaps taper the toe rails to blend into the new bowsprit. Start the taper about half way back to the mast. If you’re going to cut the rest the old foam bow to replace with new closed cell foam, maybe plumb the shape down to the knuckle. Just esthetics, but may look cleaner.
definitely get to a smoothe taper with the tow rail. But don't start half way back at the mast. The foredeck is the one place I'm most thankful for a well dimensioned toe rail.
I like that opening, like a thousand pound boot drop. "I going to cut off the bow". Great hook!
Looking good is important.
Best advice I’ve ever heard they’re marinade about we should’ve done that in the past
I would like to suggest that you make the bow with two anchor rollers, one on each side of the code 0 chain plate. This is not really for carrying a second anchor but for allowing an anchor riding-line to be easily set on one side with the chain on the other side. We have seen so many boats run the riding line through a chalk on the bow, which creates a lot of friction just when you don't want it. This second roller can be used for picking up a mooring line without having to move the anchor off its roller. Cheers
Yeah, we have never had a problem with the snubber on the bridle through chalks in the deck.
I think I can see why Evan is getting involved, it must be fun to have such an engaging project with opportunities for innovation. This looks like an awesome boat in the making.
He’s had a big hand in most of the projects
Matt, I would definitely look at doing something to protect your bow when the anchor goes up or down. It can swing back and nick the bow since it is relatively plumb. Maybe inlaid stainless or something similar. Otherwise, I like it, particularly having the rode enter below the bowsprit. It is nice being able to wash off the mud from the rode that lies on the bottom. That could be a problem if the rode is entering below the sprit. Just a few random thoughts.
Whilst I understand wanting to repurpose the naff chainplate, it looks as if you might be compromising the otherwise excellent design to accommodate it.
I would be tempted to try and have the pivot point for the anchor out just a wee bit more, even if it is just 2-4", to give a little more swinging room between anchor and stem in case you decide to upsize on the anchor.
As someone else has also said, it might look better if you 'flow' the upper edge into the top of the toerail too - that would give the added advantage of keeping the anchor higher out of the water when stowed. The lack of a bobstay means that the upward forces will have to be taken solely by the bowsprit/hull join when you bury the bowsprit so the higher you can get it the more you reduce the chances of that happening.
Finally, and following on from the above point about burying the bowsprit, might it be worth considering an 'opening' (even if mesh or grating) either side of the centre run of the bowsprit to alleviate the upward force of the water?
With the anchor roller angled like that you still have to make provisions for a bridal/snubber to attach to the anchor chain for mooring.
Biggest problem with the chain running through a tube into a chain locker is constant water ingress. you'll need a good plug to seal around the chain or very good drainage in the chain locker.
If you go with the chain locker drain option, have the drain tubes(one on either side, so at least one will always drain) angled aft to prevent water ingress while under way.
yes, we will have drainage in the chain locker
Looks good mate, but I’d also put a stainless guard over your bow….when deploying or recovering, just as the shank starts over the roller, your anchor could swing or be driven hard by a wave back against your bow.
I agree with some of the other comments about cleaning mud and seaweed off of the chain as it is being raised somehow.
It would look cool to have the front bow of the boat be covered in a layer of carbon fiber.
Maybe think about what happens when large waves hit the bow of the boat and if a larger and more covered anchor would be better.
It does look good from the top looking down. The profile from the side isn’t too bad, but might want to look at some other options to see if form and function could be done better.
Inspector Pumps! 🤣🤣😂😂👍👍🐈🐈 too funny 👍👍
Maybe a slight elongation of the shape wouldn't hurt, so the anker doesn't damage the hull while retracting it. I can imagine the few inches left in the video might be too little for when the boat is in waters. Great project, wish all the best.
Very interesting approach. I like your style and the idea of simplicity.
But. I would test the design with different anchor models as well. Some may bring the “shaft” (or whatever it’s called) more upwards before it’s fully deployed or retrieved. Will it hit or jam between the roller and bowsprit?
I’m probably going with more open design where the actual roller can be accessed from above. But also I won’t have traditional foresails.
Keep it up! And inspector happy!
Remember the bow will be cutting through waves, potentially allowing mass quantities of water through PCV pipe.
How neat it looks so much easier to handle the anchor the way this is set up. The arched gunnels-ish (sides) going into the bow sprit looks fabulous !!! If you could match that kind of curve running from where the bobstay would attach up to the end of the bowsprit I think that would look great !! Maybe a little old school lol
Consider the moment of force of an anchor as it swings… this may lead to the anchor swinging into the bow.
Scow bow! Ya know, while you’re there.
that is genius! love the bowsprit idea!!!! maybe two plates of shiny stainless steel in the front will make it look super as well
Love the cheeky anchor ask go for it, great design smooth operation
Hey Matt, It is really interesting how you are going to lead the chain inside the chain locker and how you prevent it from being stuck inside the conduit and in the locker.
OK Matt you started off being funny today love it. 😅😂😊🎉
thanks, Mimi. Glad you chuckled.
I like the idea of not having the chain come on deck, but I worry that you'll have a high pressure fire hose of seawater coming into the anchor chain locker every time you bury the bow into the face of a wave. Another thing to think about, since you will be a cruising boat and anchoring a lot, is every time the anchor and chain comes on deck, it's easy to inspect the anchor to rode attachment on a conventional bowsprit. Just some things to consider.
Those are good points
Love the idea of the anchor chain going inside, below deck and not over the deck. Not sure how you keep excessive water out of the chain locker with that design, but I'm sure you've got that figured out. Something I noticed was how close the pointy tip of the mock anchor gets to the bow as you were pulling it up (as the mock anchor was swaying). In rough sea conditions, I'd be concerned with it hitting the bow as you're pulling it up and poking holes in the bow. Maybe the anchor roller should be placed a little farther OUT from the bow. Just a thought. Overall, great design to clean up and simplify everything out front.
any way to link the chain locker bottom to the boat main bilge? Not sure how you would handle any sediment that comes in or the smell. Maybe a separate sump with bilge pump? Maybe put a slight upwards angle on the 6 foot tube the chain runs thru to the locker to help drain some out on the way in.
Check the newer commercial designs to see how far out they place the anchor roller relative to the size of the anchor for a sense of proportion. There will be a trade-off between the anchor swinging free of the bow and the length of the moment arm created by added length - the downward load on the bow sprint when the boat is anchored in rough conditions.
@@michaelkohn3277 Seen on the fancy boats, they incorporate a chain wash into the spurling or haws pipe.
How will the chain stopper be used? Usually a hatch on deck to access the chain to apply stopper.
@@michaelkohn3277 the anchor locker should drain outside of the boat
@@jonnenne This has to be VERY carefully throught through. It works best if the chain is taken as far aft as possible (ideally as far as the mast) and the drain needs to be high enough to be above any conceiveable flooded waterline. (Taking the chain far aft so that pitching does not bring the waterline above the locker floor). A compromise is to have a sump at the bottom of the locker, which is pumped out (Ideally by a "gallon a stroke" Edson with a manual override), and fit a higher drain to get rid of major incursions of water.
I think your idea is perfect
Hi Matt, I'm worried that going to windward some of every wave will spurt down that hole - that's around one spurt every 10 seconds. Perhaps the chain tube needs to have an uphill portion. I've no doubt you'll have some cunning plan that will cover that.
I've had an anchor jam in rock with a 1 metre swell and was amazed at the force that puts on the chain and the boat.
The other point is that once anchored it's usual to put a snubbing cable between boat and chain. With chain and anchor below the bowsprit it won't be easy to connect it up.
I agree with others here, make the bowsprit slightly longer to suit the boats length, don't be tied down by using the discarded chainplate.
I realise that a longer sprit puts more strain on it, but that would only come from the asymetrical which you won't use when it's too windy, the anchor can stay as positioned.
If you're worried the anchor will swing and scratch the hull you can bend a thin sheet of s/s around the bow for protection.
As for mud coming in with the chain, maybe you can have a pressure washer nozzle set into the front of the chain tube.
Like just about every other design choice, nothing's simple!
Love the idea of running the anchor below. The first thing that came to mind however, was how little space there is between the anchor and the tip of the bow point as it swings up and into place. In rough conditions or rolls, wondering if that would potentially pose a reason for the anchor to hit the boat. Alternatively, the lower the anchor is, will this be a challenge in rough weather as waves splash into the bow sprit, pushing it towards the bow? So kind of Evan to be a part of the process. Great guy.
yeah, you might be right that it's too close. i need to take another look.
Inspector needs a raise. More kibble for inspector asap 😝
Would also suggest making a plug for the chain tube with a rope threw the plug that can be attached to the chain to draw it back out when your ready to anchor again after a long passage
You ae doing WHAT 😱
Well if its safety inspector cat approved know your self out. 🤣🤣
Another great video 2x👍
She approved!
I think higher to flow with the top of the bulwarks. Also, longer Bow Sprit would look better and get your anchor out farther. Don’t let that rubbish chain plate pull u into a short sprit. I’m not a sailor or engineer, just know what looks pleasing to eye. I see your vision and like it, just my comments to me, seem better on eye.
I'd agree with this. The Bowsprit is very much a part of the boat form, rather do a little extra work to be happy with what you make than accommodate too much due to previous unrelated decisions.
The design idea looks very slick as long as it remains fully accessible.
I agree with this….feels like the top should continue from the toe rail…and definitely my first impression was that it felt stubby for the size of the boat. Obvi, more engineering to make it longer. Also consider how a mooring bridal might come into play as the boat oscillates and the lines find themselves getting caught on the anchor…..my 2 nickels :)
Yes! using old misstakes can be a "thought trap"
Maybe I've got it wrong, but in case I didn't: it's wise to have a few meters of chain attached to the anchor... say 10m?... helps keeping the anchor in the right angle on the sea floor and adds extra weight to the system. At least that's what I was told when learning about sailing some 40+ years ago 🙂
That said, I have to be honest, can't quite visualise the final result of the bowsprit, but if it's sturdy enough, aesthetics are secondary IMHO
cheers from Portugal
What provision is been made to stop water coming into the boat through the hawser when beating to weather in rough conditions and also to stop the anchor from moving when the bow is dipping into waves in the same conditions
There is a big flattish area of the bottom of the anchor that is going to make contact with the water as the bow dips into waves especially as the anchor will now be sitting lower.
Great idea if above conditions are sorted
we haven't figured out that detail yet, but the anchor will definitely need to be secured for long passages and rough conditions
I love your workout regimen.
Evan seems like a cool guy and a great asset. Seems like the anchor may be a bit close to the stem? If it’s swinging around coming out of the water it might make contact. Also I would want an easy way to mechanically secure the anchor to the boat at the anchor. An extra pin to slide in or a way to lash it down. Are you going to have a bridle or snubber incorporated? I’m sure it will turn out great. Cheers
Great comment about securing and snubbing the anchor. May I add how is the water, coming thru the hole for the chain, going to be handled?
Yes to bridle. Yes to securing pin. Haven’t decided if it’s too close or not to the stem.
@@mr.e7022 Evan IS a cool guy. Tube goes through the stem, to the windlass on deck aft. At no time will you have water inside the boat from the chain, except the little bit that wets down the chain as it goes down the spurling pipe
Nice design for the sprit, it's going to look good.
I am wondering how dropping and stowing the anchor will go without being able to see it. You could install a chain link counter to see how far up/down it is, that could help.
But blindly pulling the anchor in and hoping it lands correctly in the roller wouldn't become my favorite Activity, especially in bad weather 😅
Looking good, very good.
I love how goofy you guys are, great ad hahah
I think it is the sexiest bowsprit you could have come up with for Duracell!😍 Awesome work!
Looks much better than I thought when you put in the first mock up! Big relief :)
Looks great but…
1) How will you attach a rope snubber to the top of the chain when anchoring, to absorb snatching loads?
2) What about when (not if!) the anchor winch fails - how will you retrieve the anchor?
3) Big danger of “out of sight, out of mind” on your anchor and chain. How will you know when it’s getting rusty, or bent, or the shackle between anchor and chain is coming loose if you can’t see them?
As for the pipe, I'd consider using an Acetal/Delrin tube instead of PVC. It has very low friction and would last for a very long time.
Video was short and sweet. I like the bow sprit and anchor roller idea my only thought is the anchor beating against the bow when raising or lowering. I am sure that you have already thought about this and hope to see your thoughts and ideas about this concern.
This was a great episode. 👍👍
That Gull figurehead looks awesome.......
Great repurposing of the chainplate! You'll do fine. The only critical remark I want to make is that the anchor really dwarfs the bow and the sprit. Sure you need that size of iron?
what a way to start a vid
Hi Matt, Just a thought, I do woodworking and when I am in a situation where I use a vacuum cleaner to collect dust and or small particles I use a thing called a "Dust Deputy." It really keeps the dust down and the vacuum cleaner clean. I just wanted to share this thought with you. Best wishes.
I’ll check it out
I actually squeaked like a little girl when he said I’m going to cut off the bow,
Awesome progress guys and galls 😁 Dæjå!
Great ideas . One thought is the end of the bow sprit , if look at pics of a Duck-Billed Platypus ugly thing , but the shape at the end of its bill or close to it . Weird thought .
13:32 a bird house :)
Great design ! yall came up with, can't wait to see finished.
Another exciting and major project, not unlike so many others. Wise to go "piano piano", so it ferments properly until you are ready to go. Good luck and have fun doing it. Can't wait for the episodes 88, 89, and 90! : ⁰ )
very nice idea, looks great!
but if you ever have an issue with either chain or windlasss (happens more often than you would hope), you will have challenge.
I’m confident you will make it look pretty in the end but double check that it flows with the lines of the boat
Great ideas! and design!! my only worry is that the anchor looks like it would be involved in big seas in its stored position, I would try to get the (whole thing of beauty) as close to the sheerline as possible. Also figure out room for a chain washing system as you work on how everything fits into the space.
We are considering the multiple comments we have gotten about this and might redesign
More and more impressed by your skills at using CAD tool (Cardboard Assisted Design)
Great moke up. Good advise
Thinking of a muddy anchor chain
A good use for the spare chainplate. I hope a real anchor will behave similarly, remember most of the weight is below the shaft. Perhaps someone could lend you one for testing. I hope you can keep water out of the chain locker, even a little bit getting through with each wave, all adds up. As the bow is moving fast it has added pressure to squueze the water into any gaps.
Chain lockers have drainage holes or channels. It doesn't matter if water gets in the locker, it all just drains out without ever getting inside the boat.
So exciting watching this project's progress. I look forward to each installment. I've no doubt once it's finished this boat will be one of the finest passage makers in the world!
Bow spread brilliantly executed Matt looks great an works a treat 👍
Good on you for choosing a large anchor. I've been cruising for 17 years now and never once have I ever said to myself "Gee, I wish I had a smaller anchor.". You'll have many a good night's sleep in harbor even when the squalls hit at 2:00 AM. (LOL, isn't it always 2:00 AM?!?!)
Liked, subscribed and I'm enjoying watching the build.
Capt. Blackheart Charlie
s/v Aurora
Exactly. And thx for subscribing
Wow never get bored watching this channel, so pleased you can use the junk chain plate for something useful , great video , I’m always waiting for the next video, 😊 , GL
WOW! Such a pivotal point that will impact so much security moving forward, stoked that Rocna is your choice....that anchor is the best!
I would see to add the option to remove the anchor from the bow and store it in the chain locker easily. Might be a bit heavy to do it comfortably, but backing this 40kg 1 to 2 meters would make a difference in performance, for when you want to race your boat against your neighbors :)
We’ve talked about that for really long/rough passages
Really enjoy the design process sharing. Thanks. Stewing on a design will either bring up issues not realized or verify this is the path. Thanks for the episode.
The point of the anchor was a bit close to the bow as it raised so maybe you could push the bow sprit out another 12” and lift it up flush with the line of the bulwark? Maybe you could have two ellipse shaped holes cut into the bulwark with folding deck cleats just in from each gunnel too? That way you can put a double strop on your anchor chain or have a nice bow line point for marina berthing. Rather than just holes I’d have a open slot in the top of the ellipse just wide enough for a thick dock line. These holes would allow for some deck washing drain points.
If you kept the bow sprit flush with the deck you could shape two half circle leads on the front of the bulwarks to act as fair leads for bow lines?
Have you considered a high pressure hose on the bow for mud removal.
I’d also glass in some surfboard leg-rope pads into the deck for thin cords from the deck to your top lifeline to stop the headsail or other items falling off the bow so easily. These can be used as tie down points for various items.
Also, are you putting port/starboard nav lights in the bulwark or in the pushpit? I’d go bulwark.
Hi love your videos and enthusiasm keep up the good work. It isn’t clear where you are going to locate the windlass. But I would be concerned if you can’t see the chain coming up and around the windlass. Crud, plastic bags, kink in the chain all invisible. The photos of the production boats you showed have the chain and windlass visible
Good luck
nice to have Evans help project is very cool Im a novice and your educating me thanks m....
Matt, have you thought about rebuilding the bow? Giving it a more modern look while improving efficiency? IE.: inverted or more straight? That, with the upgraded stern would make this thing looks 2024 special edition! Btw loved the anchor idea and the new side stays carbon plates. Just beautiful work! Keep rocking!
i think reconfiguring the bow might be biting off more than i can chew. Plus, I like how the bow looks.
Very very god video! Thank you!
Fascinating combination of architecture and just doing it!
Matt, your expression looked like Sams
(12:20 of his orca episode)