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At this stage we hope that the sterns are in the water and that would mean that they won't slap. I an hoping that the sterns are completely water tight and that would mean that we won't need any foam for buoyancy. Cheers for the suggestions though. -sam
Hi guys, another interesting video. Those stern platforms will make a big difference to your ease of getting on and off and are great for reversing onto a dock. They are a common feature in newer cats. In your video you say you will be adding a whole load of new stuff on the back! More weight usually means slower boat. I am sure you know what you are doing and have done the calcs. The asymmetric hull shape was a bit of wishfull thinking from the designer. Lifting a hull on a 17 tonne cat would be a hairy experience! BTW congratulations to New Zealand retaining the Americas Cup. Your team was yet again in a class of its own although the gap is closing. It seems Britannia is the Challenger once again for the next round. Perhaps you should think about some foils! That would give you something to think about. (Just kidding) FYI the Dazcat boys added foils onto their rudders for extra performance....lots of engineeering and complex carbon work.£££££££ PS did you try the cardboard cutout exercise?
Hi Chris, thank you we are very happy with the sterns. I was doing the calculations for the sterns but unfortunately we came to the conclusion that we want the extra stuff for liability reasons so I would just have to make it work. I am lucky as we have great bug lockers foward and aft so I should be able to balance the boat out with them. A friend of mine put foils on his rudders and they did make a difference but our rudders and daggerboards are a bit clunky and there is so much I could do to improve them before going foils. I haven't tried the cardboard trick yet. We splash in a bit over 2 weeks and we are getting to the panic stage of trying to complete and finalise everything. I do hope to do it before we splash. -sam
Who in their right mind would cut their boat up? Well that would be Cait' and Sam🤣. Wow you guys. I love how you don't jump into things, you take your time discussing what you want, the pros and cons and prioritizing what is more important. That is an outstanding addition to your boat. Can't wait to see the boat finished and in the water. Are you doing anything inside or is this it for your refit? I really enjoyed the live that you did and look forward to more. Just an FYI it would be nice if we would know in advance when you were going to do it that way we don't miss it. Great job guys as always stay safe and God bless till next time
Hi, Sorry about the impromptu live it wasn't planned we just saw you could do it and gave it a go. We will definitely be doing more now we know how to do them and we'll be sure to let you know. We aren't doing anything inside on those refit but we do have plans for the inside to come. There is more comming for the outside but we are down to the wire as we get launched in 3 weeks!
Interesting. With the extension I would be worried about buckling where extensions join the existing hull. That part of the hull is now carrying increased compression loads.
We increased the t bar in that section to counteract that. We also added a ring frame or baffle plate for strength. We made it so strong so we wouldn't need to extend the sides of the boat but if there is any signes of buckling then we will just extend the sides. -sam
Yes we are very happy with the extensions! The big platforms are excellent! We have the ladder there all the time so it is easy and if we unexpectedly go swimming then it is there ready to go. -sam
The 1 disadvantage will be when your in a marina and have to pay for the extra length of your Cat.. Great job by your welder, looks great. Thanks for the video.
They've come out beautiful! Great thought and good question! Thankfully all of that will stay the same 🙌 we were 15.24m and now 16m, we got put in 16m pens and will still go in the same 16m pens 🙌 Thank you!! The sterns have come out beautifully, we are looking forward to relaunch and seeing what she can do and really looking forward to the latge platforms for snorkeling and swimming and jumping off the sterns🌊⛵️ -Cait
Thank you so much Josh, Emma & Charlie! We are looking forward to snorkelling off them, squidding and they will be excellent platforms for pulling fish in on 🐟🐠🎣 -Cait
Did you re-insulate the area of the swim platforms? I noticed you had to chip away at the spray foam, at inside of the old sugar scoops. Nice work. It's so interesting your boat is not mathematically accurate in dimensions from starboard hull to port hull.
I have talked to a few alloy boat builder and they say it is fairly typical of older alloy boats. They just warp and buckle a bit and as English rolling is an inexact science any alteration is always better done by eye. -sam
Oh and we didn't insulate the pods. We did buy a small can of spray foam to replace the foam that we dug out for the welds and then used the rest of the can in the pods but there wasn't that much put in the pods.
Thank you so much! Lots of planning and designing, and they came out beautiful! It was much fun to cut into the boat - it's not every day you get to chop your boat into pieces! 😎 -Cait
@@sailingwiththejamess my pleasure anyways your effort came out a perfect result that’s awesome 🙌 I love aluminium boats , but they are spicily pricy 😀
Hi Frank I couldn't agree more, when we were organising the refit we couldn't get everything we wanted so we sat down and thought about the type of life we wanted to lead and everything that encouraged that stayed on the refit list and everything that didn't came off. So no air-conditioning or new TV sadly but heaps of other cool things. -sam
Love it, bloody Awesome idea an job, fantastic Sam, Cait she's going to sit much better and glide smoothly. 🇦🇺💜😆Sweet welding jobs too. I actually like that run down cat next to u better🤣😁😛
Thank you so much! It's been months in the planning and design and Sam has done a fantastic job. We are really happy with the results and are very much looking forward to using the platforms, they'll even be great for pulling fish in! 🎣 Appreciate the support, and we always enjoying reading your comments! 💜 -Cait
THANK YOU! We get relaunched in t minutes 3 weeks, hope to see you before then! Shes looking really beautiful with the extensions. Have a great time in Doomadgee 🙌 -Cait
Not this time,, she's has the classic crowther flare on the bows which we love, a lot of the fiberglass versions of the Design 85's have the bulbous bows and they are 🔥👌 -Cait
Really nice work! Glad to see the extra bouancy to also replace the lift lost from chopping the skegs also. That was interesting to hear about the transom edge flat spot to get a cleaner release of flow for the wake. Reducing parasitic drag at the transom is important for light air multihull sailing & I learned that directly from Lock C. himself. But he never mentioned having a flat spot there. Is that a fairly recent development?
I learnt it from a friend of mine who races full time when he was on commanchi at Hamilton Island race week. It is important not to have it kicked down at all so if anything still the slightest rake up but it also allows us the have a hard edge which alo helps he water release from the transom. For our boat it isn't super important but just another thing that I want to play with and as it's all bare alloy at the moment it's not to hard to give it a go. Robin (the welder) offered to make the corner hard out of alloy but we opted for a standard stern in case it's not the best idea. -sam
Awesome, I expected the extension to be longer. Thanks for explaining why you built it the way you did, I've only seen the shell plate put over the frame in the past. Really enjoy the simple way you explain all in your video's.
Cheers Wayne, we wanted the extensions to be longer but it just didn't look right. We could have gotten away with a little bit longer but brought it back slightly to make us 16m over all. Our prodder is foldable so it doesn't count according to amsa. Sam
@@sailingwiththejamessI was going to ask about the extra waterline length affecting marina/boatyard charges etc so could you enlarge on that AMSA thing for those of us up here in the colder hemisphere? ps. Obviously you have given little thought to how far a new rating is going to push you down the Sydney Hobart line honours result …
Hello! Hello! Great questions! AMSA is the Australian Martime Safety Authority, we had to file paperwork with them for the new length. We are going from 15.24 meters to 16meters, in regards to marinas we were always in a 16m pen at 15.24m so nothing will change with marinas. With boatyards and shipyards it might be different as they normally charge by meter or foot so we might have to pay for the extra length on the hardstand. We are really excited about the new suagrscoops and getting relaunched shortly and using them! 👍🌼✨️ -Cait
@Sailingwiththejames's To Assist with added buoyancy did you consider a closed cell polyurethane foam? It comes in 2 parts that you mix and pour into the space and it expands to fill the voids. Dont shoot me if I am wrong I am no boaty just a wannabe boaty :)
It's definitely a Meter plus .... BTW guys I'm trying to find an article on a guy who deleted his cats twin keels and fitted a single central blade keel.
@@sailingwiththejamess With the new 16 metre overall length, I guess the marina /haul cost will be the same in down under locations, as the boat was already longer than 15 metres prior to the modification. It will be interesting to see how the forward/aft balance goes with your sail plan? You should see ~0.25 knots of additional boat speed with lower stern drag and longer hull length, unless additional weight is also added.
We are hoping the costs will be the same. We could have gone slightly longer but brought it back to keep it in line with 16m. We are hoping for a bit more of a speed increase as we have brought the stern up to allow for the extra weight but yes sadly we are putting more weight on lol. -sam
Just a thought from a new admirer of your videos and thinking...If the extensions do slap too much at anchor in a bit chop, you could always make your stern bulkhead water tight and fill the transom cavities with closed cell foam as an option. Should they be ruptured or torn off somehow, they wont fill with water also. You could test one side first and record the sound difference? You wont be able to inspect for damage / leakage from the inside, but you can still inspect from the outside should you ever suspect damage?
It I'd a good plan, and I definitely think it would make things quieter. At this stage, they aren't slapping, but we keep on talking about getting lighter, so it may at some point. I have reinforced the sterns on tugs and it made reverse alot quieter. It's a good thought and suggestion my friend thank you. -sam
So true, The challenge you face with steel is that it pays about %10 of what alloy pay which means that instead of recycling at a cost neutral basis it would cost you money to recycle steel. In Australia old steel boats are a problem and the government has had to pay private contractors to clean up the old steel wrecks left in the rivers and creeks about the coastline. -sam
Excellent video-- I am really interested to see the performance changes you get when you're sailing, the extra length, clean stern etc. It was bloody brave of you to take this on. Is that a worse for wear crowther cat next to you? and btw, what was sooo rude on your T shirt that you had to blank it out?? Phil
Thank you so much Phil! We are really looking forward to seeing what she can do with slippery undersides and extended sterns. Good eye, that is 'Karma' and she is an old alloy crowther next to us , she will be getting a big refit soon! No profanity just an old tshirt... from Thailand 😏 that gets confused for something else 😉 -Cait
Hi Patriot! Cheers for the idea, but we have water tight bulkheads in the case of water ingress. I would personally prefer to keep the space open so that if the worst did happen and we started to sink that, I could see where it was coming from and hopefully deal with it. -sam
Step 1: How to start and extend your back of the boat, you start with buying a: mason's line. Then you tie it to the rudder end up against your boat so you don't have a cap between your ruder en boat with the cord, step 2: you make a 3 legged stand, now you let it stand after the boat further than you gone extend, now you can tie the mason's line cord to your 3 legged stand en and make sure you can adjust it up and down, because you have to align it to the upper end of the boat corner, now you have a perfect working line to make your extents' en it gone be even with your boat, now you can start with making a template. For the extension
Hi again iceman, This looks familiar lol. Cheers for the comment l. I'm a firm believer in " if it doesn't look right then it probably isn't right. The bow and sterns always start from the centre of the boat and you need to look at the lines all the way to the centre. -sam
Hi kevin, Yes I can weld. We got our sterns miged and tiged which would have meant that I would have had to buy 2 machines and sticking old alloy to new alloy is a bit tricky. I am confident that I couldn't have done as good a job a Robin so we are very happy that we outsourced thus one. -sam
I am glad to see someone getting out of the box. I believe we have all been brainwashed into thinking that things have to be a certain way. I have saved every gallon of motor oil for over 20 years. The hurricane hit and we were cooking on wood. We were starting fires with a torch striker and alcohol. We pumped water by hand and ran our old backhoe on used engine oil. If you draw a one bar vacuum on water the temperature goes down to 36 degrees F or 4 degrees above freezing. The average air-con or refrigerator uses hundreds of pounds of pressure to cool. Our overlords don't want you to know this.
![ILLSLICK - KILLSHOT REMIX [FULL VERSION]](http://i.ytimg.com/vi/RIK8RrqIAzE/mqdefault.jpg)
Thank you for helping keep our boat afloat. See the 👍 button, please consider pressing it as you would be helping us out more than you know.
Would you like to see more of Sailing with the James’s?
Become a virtual crew member by becoming a patreon and get more of Sailing with the James's. You can check out what it’s all about here 👇come and join the fun.
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I keep seeing the Twin Cat over your shoulder ........ I think you might have to take that one on too LoL
Hahaha at this stage we are soon keen to get out of the yard and go cruising for a bit. It is a beautiful boat though.
-sam
You should fill the inside of the extensione with fpoam to stop the slapping sound and also to create boyance lift inthe sterns.
At this stage we hope that the sterns are in the water and that would mean that they won't slap. I an hoping that the sterns are completely water tight and that would mean that we won't need any foam for buoyancy. Cheers for the suggestions though.
-sam
Hi guys, another interesting video. Those stern platforms will make a big difference to your ease of getting on and off and are great for reversing onto a dock. They are a common feature in newer cats. In your video you say you will be adding a whole load of new stuff on the back! More weight usually means slower boat. I am sure you know what you are doing and have done the calcs.
The asymmetric hull shape was a bit of wishfull thinking from the designer. Lifting a hull on a 17 tonne cat would be a hairy experience!
BTW congratulations to New Zealand retaining the Americas Cup. Your team was yet again in a class of its own although the gap is closing. It seems Britannia is the Challenger once again for the next round.
Perhaps you should think about some foils! That would give you something to think about. (Just kidding) FYI the Dazcat boys added foils onto their rudders for extra performance....lots of engineeering and complex carbon work.£££££££
PS did you try the cardboard cutout exercise?
Hi Chris, thank you we are very happy with the sterns. I was doing the calculations for the sterns but unfortunately we came to the conclusion that we want the extra stuff for liability reasons so I would just have to make it work. I am lucky as we have great bug lockers foward and aft so I should be able to balance the boat out with them. A friend of mine put foils on his rudders and they did make a difference but our rudders and daggerboards are a bit clunky and there is so much I could do to improve them before going foils. I haven't tried the cardboard trick yet. We splash in a bit over 2 weeks and we are getting to the panic stage of trying to complete and finalise everything. I do hope to do it before we splash.
-sam
they look great!
Thank you!! We are in love with how they came out!
Hey guys, I just found your Chanel awesome job. I'm on board, lol.
Thank you so much! Looking forward to having you along for the journey!
What an excellent idea😂 first time watching you youtube I will be an enormous benefit
Cheers for watching! We think it is worth it.
-sam
Great stuff guys 👏🏽👏🏽 looking good 👏🏽👏🏽
Cheers! We look like all our sisterships now. I think we were one of the last to get it done.
-sam
Looks mint guys! So much work has gone into this design, you see that Sam!
❤ Great editing Cait!
Thank you Heidi!
The stern extensions have been months in the works and Sam has done an amazing job 🙌
Can't wait to catch up with you guys!
💜 Cait
Looks awesome, brother!!
Thank you! We are in love with them and looking forward to splashing soon and using them for snorkelling and boarding in and off the tender!
-Cait
THE ADJUSTMENTS YOUR DOING LOOK GREAT !
Thank you so much! Greatly appreciated it!
-Cait
well done
Cheers
they have come up good !! a lot better than the original ones
Thank you! We are very happy with them. We start painting them next week and are super excited to get them in the water.
-sam
Who in their right mind would cut their boat up? Well that would be Cait' and Sam🤣. Wow you guys. I love how you don't jump into things, you take your time discussing what you want, the pros and cons and prioritizing what is more important. That is an outstanding addition to your boat. Can't wait to see the boat finished and in the water. Are you doing anything inside or is this it for your refit? I really enjoyed the live that you did and look forward to more. Just an FYI it would be nice if we would know in advance when you were going to do it that way we don't miss it. Great job guys as always stay safe and God bless till next time
Hi,
Sorry about the impromptu live it wasn't planned we just saw you could do it and gave it a go. We will definitely be doing more now we know how to do them and we'll be sure to let you know. We aren't doing anything inside on those refit but we do have plans for the inside to come. There is more comming for the outside but we are down to the wire as we get launched in 3 weeks!
Interesting. With the extension I would be worried about buckling where extensions join the existing hull. That part of the hull is now carrying increased compression loads.
We increased the t bar in that section to counteract that. We also added a ring frame or baffle plate for strength. We made it so strong so we wouldn't need to extend the sides of the boat but if there is any signes of buckling then we will just extend the sides.
-sam
This is turning out nice and clean. That swim platform ladder looks like an easy and safe way back on the boat. Even after a big long day exclamation.
Yes we are very happy with the extensions! The big platforms are excellent! We have the ladder there all the time so it is easy and if we unexpectedly go swimming then it is there ready to go.
-sam
Great job 🎉
Thank you!!
they look great. great job!
Thank you so much! Months in the pipeline and they've come out beautiful!
-Cait
Nice work guys, by the time you paint everything it will look original.
Cheers 🍻🍻
Cheers, At this stage we are leaving the style sides off for usability but will probably put them on if we ever go to sell it.
-sam
Hope you pumped buoyancy foam in them.
No we didn't pump buoyancy foam into the extensions. Our welder Robin is very good but we want to be able to visually monitor them to begin with.
-sam
WOW! Wow! Wow! Emma is looking amazing
Thank you so much Brad!
That was so interesting to see! Thank you for sharing.
Thanks legends for watching! 💙🙌💙
The 1 disadvantage will be when your in a marina and have to pay for the extra length of your Cat.. Great job by your welder, looks great. Thanks for the video.
They've come out beautiful! Great thought and good question! Thankfully all of that will stay the same 🙌 we were 15.24m and now 16m, we got put in 16m pens and will still go in the same 16m pens 🙌
Thank you!! The sterns have come out beautifully, we are looking forward to relaunch and seeing what she can do and really looking forward to the latge platforms for snorkeling and swimming and jumping off the sterns🌊⛵️
-Cait
I have been waiting for this episode ....... cheers
Thank you!! We are really proud of the extensions and had a great time from start to finish! 🙌 we love hearing that you are enjoying the videos!
-Cait
can’t wait to see how she sails
You and me both!
-sam
Great video james family. you are doing some big refit projects to your boat and i look forward to seeing what the boat will do with all your mods
Thank you so much! We should be very slippery in the water
-Cait
looking good to me, all the best to you guys. Allan
Cheers Alan, the proof will be in the pudding in a couple of weeks.
-sam
i like them.
Thank you! We do too!
Absolutely amazing! You both look so thrilled with how everything turned out. So excited for you!😄
Thank you so much Josh, Emma & Charlie! We are looking forward to snorkelling off them, squidding and they will be excellent platforms for pulling fish in on 🐟🐠🎣
-Cait
Like the safety foam
Hahahaha yes that is what we thought lol. It is great at insulating our tin can though.
-sam
Did you re-insulate the area of the swim platforms? I noticed you had to chip away at the spray foam, at inside of the old sugar scoops. Nice work. It's so interesting your boat is not mathematically accurate in dimensions from starboard hull to port hull.
I have talked to a few alloy boat builder and they say it is fairly typical of older alloy boats. They just warp and buckle a bit and as English rolling is an inexact science any alteration is always better done by eye.
-sam
Oh and we didn't insulate the pods. We did buy a small can of spray foam to replace the foam that we dug out for the welds and then used the rest of the can in the pods but there wasn't that much put in the pods.
Cool project 🎉 Well-done
Thank you so much! Lots of planning and designing, and they came out beautiful! It was much fun to cut into the boat - it's not every day you get to chop your boat into pieces! 😎
-Cait
@@sailingwiththejamess my pleasure anyways your effort came out a perfect result that’s awesome 🙌 I love aluminium boats , but they are spicily pricy 😀
They are but at the moment if feels like all boats are pricey lol
-sam
My thoughts are: When you have paradise islands to explore, it _is_ important to be able to get off and on your home easily.
Hi Frank I couldn't agree more, when we were organising the refit we couldn't get everything we wanted so we sat down and thought about the type of life we wanted to lead and everything that encouraged that stayed on the refit list and everything that didn't came off. So no air-conditioning or new TV sadly but heaps of other cool things.
-sam
Excellent video, thanks for sharing 👍
Happy to hear people are enjoying the videos!
Love it, bloody Awesome idea an job, fantastic Sam, Cait she's going to sit much better and glide smoothly. 🇦🇺💜😆Sweet welding jobs too. I actually like that run down cat next to u better🤣😁😛
Thank you so much! It's been months in the planning and design and Sam has done a fantastic job. We are really happy with the results and are very much looking forward to using the platforms, they'll even be great for pulling fish in! 🎣
Appreciate the support, and we always enjoying reading your comments! 💜
-Cait
I was eyeing off that other Cat as a future project too lol
The owner is just about to start on it and he has big plans! We will try and stop in here on our way to indo and see how it is going.
-sam
Cheers guys! 😊
Thanks trev
Good explanation Vid
Paul Kakadu
Cheers Paul,
Trying to carry a bit of weight, it is probably the biggest thing that we miss about our mono, the ability to carry a lot of weight.
-sam
Frign awesome. You will definitely like the ease of getting in and out of tender.
We won't be back till the end of Oct, working in Doomadgee.
THANK YOU! We get relaunched in t minutes 3 weeks, hope to see you before then! Shes looking really beautiful with the extensions. Have a great time in Doomadgee 🙌
-Cait
You going for a bulb bow? Another small mod maybe
Not this time,, she's has the classic crowther flare on the bows which we love, a lot of the fiberglass versions of the Design 85's have the bulbous bows and they are 🔥👌
-Cait
Really nice work! Glad to see the extra bouancy to also replace the lift lost from chopping the skegs also.
That was interesting to hear about the transom edge flat spot to get a cleaner release of flow for the wake. Reducing parasitic drag at the transom is important for light air multihull sailing & I learned that directly from Lock C. himself. But he never mentioned having a flat spot there. Is that a fairly recent development?
I learnt it from a friend of mine who races full time when he was on commanchi at Hamilton Island race week. It is important not to have it kicked down at all so if anything still the slightest rake up but it also allows us the have a hard edge which alo helps he water release from the transom. For our boat it isn't super important but just another thing that I want to play with and as it's all bare alloy at the moment it's not to hard to give it a go. Robin (the welder) offered to make the corner hard out of alloy but we opted for a standard stern in case it's not the best idea.
-sam
Awesome, I expected the extension to be longer. Thanks for explaining why you built it the way you did, I've only seen the shell plate put over the frame in the past. Really enjoy the simple way you explain all in your video's.
Cheers Wayne, we wanted the extensions to be longer but it just didn't look right. We could have gotten away with a little bit longer but brought it back slightly to make us 16m over all. Our prodder is foldable so it doesn't count according to amsa.
Sam
@@sailingwiththejamess cheers Sam, it looks awesome
Let's hope it slippery.
@@sailingwiththejamessI was going to ask about the extra waterline length affecting marina/boatyard charges etc so could you enlarge on that AMSA thing for those of us up here in the colder hemisphere?
ps. Obviously you have given little thought to how far a new rating is going to push you down the Sydney Hobart line honours result …
Hello! Hello! Great questions!
AMSA is the Australian Martime Safety Authority, we had to file paperwork with them for the new length. We are going from 15.24 meters to 16meters, in regards to marinas we were always in a 16m pen at 15.24m so nothing will change with marinas.
With boatyards and shipyards it might be different as they normally charge by meter or foot so we might have to pay for the extra length on the hardstand.
We are really excited about the new suagrscoops and getting relaunched shortly and using them! 👍🌼✨️
-Cait
Did you consult with sailing into freedom ? He seems to think he’s the aluminum sailboat guru! Lol
Hahaha no I didn't. I have watched a few of his videos though, he is quite the caricature.
-Sam
should have used the extensions as fuel storage
We are lucky with this boat. She holds 1200 ltrs. That's enough for now. We are also making a bigger ulp storage so we can stay out longer.
-sam
That's going to be a very scary boat in a big following sea.... You're going to wish you have some kind of scaggs
Hi Tom! I hope not as following seas is what every sailor, including me, hopes for.
-sam
@Sailingwiththejames's To Assist with added buoyancy did you consider a closed cell polyurethane foam? It comes in 2 parts that you mix and pour into the space and it expands to fill the voids. Dont shoot me if I am wrong I am no boaty just a wannabe boaty :)
Not it's a great idea, it would stop cait and I from filling the space with stuff which in turn is weight.
-sam
Will you fill with closed cell foam ?
No we will leave the voids open. From our back lockers we can see right to the stern.
-sam
Will there be a problem to raise and drop your tender ...
No our tender fits in the gap easily.
-sam
how much extra was the length of the extensions ......... good thought out job , credit to you both , sorry 3
It's an extra 2.5 feet. We wanted to keep the boat at 16m overall
Sam
Nice job with these extensions to reduce drag. What waterline length did you add to the boat?
It's definitely a Meter plus ....
BTW guys I'm trying to find an article on a guy who deleted his cats twin keels and fitted a single central blade keel.
Hey Alec! Thank you so much, the extensions have come out really beautiful. We extended 2.5 feet, we went from 15.24 to 16.00meters
-Cait
Thank you, Clive! We are very happy with the new platforms and can't wait to use them for putting snorkelling gear on!
-Cait
@@sailingwiththejamess With the new 16 metre overall length, I guess the marina /haul cost will be the same in down under locations, as the boat was already longer than 15 metres prior to the modification. It will be interesting to see how the forward/aft balance goes with your sail plan? You should see ~0.25 knots of additional boat speed with lower stern drag and longer hull length, unless additional weight is also added.
We are hoping the costs will be the same. We could have gone slightly longer but brought it back to keep it in line with 16m. We are hoping for a bit more of a speed increase as we have brought the stern up to allow for the extra weight but yes sadly we are putting more weight on lol.
-sam
Just a thought from a new admirer of your videos and thinking...If the extensions do slap too much at anchor in a bit chop, you could always make your stern bulkhead water tight and fill the transom cavities with closed cell foam as an option. Should they be ruptured or torn off somehow, they wont fill with water also. You could test one side first and record the sound difference? You wont be able to inspect for damage / leakage from the inside, but you can still inspect from the outside should you ever suspect damage?
It I'd a good plan, and I definitely think it would make things quieter. At this stage, they aren't slapping, but we keep on talking about getting lighter, so it may at some point. I have reinforced the sterns on tugs and it made reverse alot quieter. It's a good thought and suggestion my friend thank you.
-sam
@@sailingwiththejamess 👍
Thank you! 💙
-Cait
steel is as easily recycled as aluminum...just dont get as much per lb for it
So true,
The challenge you face with steel is that it pays about %10 of what alloy pay which means that instead of recycling at a cost neutral basis it would cost you money to recycle steel. In Australia old steel boats are a problem and the government has had to pay private contractors to clean up the old steel wrecks left in the rivers and creeks about the coastline.
-sam
Excellent video-- I am really interested to see the performance changes you get when you're sailing, the extra length, clean stern etc. It was bloody brave of you to take this on. Is that a worse for wear crowther cat next to you? and btw, what was sooo rude on your T shirt that you had to blank it out?? Phil
Thank you so much Phil!
We are really looking forward to seeing what she can do with slippery undersides and extended sterns.
Good eye, that is 'Karma' and she is an old alloy crowther next to us , she will be getting a big refit soon!
No profanity just an old tshirt... from Thailand 😏 that gets confused for something else 😉
-Cait
If your not going to use this rear add on as storage, I would put flotation foam in both of them.
Hi Patriot!
Cheers for the idea, but we have water tight bulkheads in the case of water ingress. I would personally prefer to keep the space open so that if the worst did happen and we started to sink that, I could see where it was coming from and hopefully deal with it.
-sam
Step 1: How to start and extend your back of the boat, you start with buying a: mason's line. Then you tie it to the rudder end up against your boat so you don't have a cap between your ruder en boat with the cord, step 2: you make a 3 legged stand, now you let it stand after the boat further than you gone extend, now you can tie the mason's line cord to your 3 legged stand en and make sure you can adjust it up and down, because you have to align it to the upper end of the boat corner, now you have a perfect working line to make your extents' en it gone be even with your boat, now you can start with making a template. For the extension
Hi again iceman,
This looks familiar lol. Cheers for the comment l. I'm a firm believer in " if it doesn't look right then it probably isn't right. The bow and sterns always start from the centre of the boat and you need to look at the lines all the way to the centre.
-sam
do you / can you ally weld at all Sam
Hi kevin, Yes I can weld. We got our sterns miged and tiged which would have meant that I would have had to buy 2 machines and sticking old alloy to new alloy is a bit tricky. I am confident that I couldn't have done as good a job a Robin so we are very happy that we outsourced thus one.
-sam
Hey guys, are you in Cairns by any chance?
Hey Ivan 👋
Yes we are refitting in Cairns
-Cait
I'm flying up Sunday looking at a boat on the hard in portsmith
Hey Diving,
My number is the same as it's always been. Give us a call or message.
-sam
I don't have it any more, can we put numbers on here?
Pm sent
Someone stole your transom.
LOL 😆 it's done a runner!
I am glad to see someone getting out of the box. I believe we have all been brainwashed into thinking that things have to be a certain way. I have saved every gallon of motor oil for over 20 years. The hurricane hit and we were cooking on wood. We were starting fires with a torch striker and alcohol. We pumped water by hand and ran our old backhoe on used engine oil. If you draw a one bar vacuum on water the temperature goes down to 36 degrees F or 4 degrees above freezing. The average air-con or refrigerator uses hundreds of pounds of pressure to cool. Our overlords don't want you to know this.
Modern Aircon systems and pumps have come a long way in the past 3-5 years. Ditto electric motors and fans .
Wow, I love been out of the box and wherever possible we try and give it a go.
-sam