Thanks for watching! If you want to know more about Tangaroa - check out our website onboardtangaroa.com. See you next week! Same Time Same Place! Cheers Blaine and Janis
i enjoy the repair coverage, because you discuss all the engineering issues in a proper discussion , and then follow up action. i thought, drain and wash the diesel tanks before welding, but not here. i,ve never seen that.
Glad you like the format! I definitely would not have expected them to weld without fully removing the diesel but I guess if you back purge the tank with Argon there is no oxygen to burn. I still would not have done it myself. Blaine
The wormholes are crevice corrosion. Where the aluminium/stainless steel is damaged underwater. And never comes in contact with the air. Corrosion just keeps on going. I have seen Stainless steel submarine hatches eaten away with crevice corrosion.
Seeing those props makes me wonder... Why don't more boat manufacturers do ducted props. They are more efficient, giving higher thrust at lower rpm, but as far as I know, you rarely see them on recreational vessels. They seem to be restricted to big, heavy, industrial ships.
I'm not really sure. Definitely efficiency to be gained there. My guess is that it is purely a cost decision. I have been looking into lots of options regarding future propulsion upgrades and ducted props were one of the things I was researching. Blaine
You cannot have any aluminum in direct contact with steel, rubber must be employed between the two surfaces or one will corrode the other or the weaker of the two that being Aluminum. You need to check your boat for electrical corrosion all metal must shielded from electronic corrosion:
I wasn't there and Janis is not super familiar with the different welding processes. I asked her what kind they used and she replied "welding" 😂. Unfortunately I can't answer your question with any certainty. Blaine
I have a Miller Multimatic 220 AC/DC onboard. All of my repairs are currently done with TIG but a spoolgun is on the wish list. Definitely will need one before I tackle the window project. Blaine
The more I watch your repairs of the earlier years makes my suspicion stronger that this was the first or one of the early boats they built out of aluminum. The way she was built was more for the look than the practicality. The hull could have been built with a deep V all the way to the original stern. Then the engines could have been closer to the stern. Its almost like they were designing the boat for shallow draft. Not sure why they had a cutlass bearing in the shaft log. Did they ever build sisters to Tangaroa or was she a one off.
I think from what they've said at some stage in its earlier life extra length was added to the Tangaroas Transom to extend the waterline and internal space..
I believe there were a few sister ships build with the same basic design cues. She still has a 5.5ft draft so I wouldn't consider it necessarily a shallow draft. Not sure why the engines are so far forward. It does make for a very shallow shaft angle though which helps efficiency. Blaine
@@OnboardTangaroaSeatrial I did some googling about the original builder. They have a long history of boat building. As I thought they had most if all their experience in building wood vessels. The design of Tangaroa is the old school, the way old wood boats were built. They built high end wood yachts where as boat builders in BC built wood fishboats and other commercial vessels in the same era.
Greetings. Your videos are very hard to follow. Blain mentioned a repower. I went to my subscriptions, look at all your videos, and found no repower videos.
Sorry about that. We split our original.channel into two separate channels. One deals with all of the tech stuff and the other is just travel/exploration. This forced us to revamp all of the videos. The repower will be coming out at some point and will be much more detailed than it was originally. We are kind of going through the projects chronologically by when the began but covering them start to finish. Some span years. Makes it a little different but also gives our opinions of projects years after completed and if we plan to do modifications. I'm not sure exactly when the repower is going on the table but seeing as it was one of our most recent projects it may take some time to swing back to that. Thanks for the patience. Blaine
You probably don't realize it but that footage in this video was taken smack in the middle of the covid pandemic when masks were the norm. We don't wear masks anymore but I can assure you that if we did, this comment would certainly not convince us to do anything differently to gain your approval. Thanks for watching!
You really bought a lump. By the time you get this thing back to usable condition you will have spent about as much as a new one would have cost. If why you're doing is therapy, that's another story.
They said they knew it was likely to be a long haul given the boat had been sat so long .. so it was affordable to buy it was to be a live aboard for the family. Given the tidal range and the amount floating and sunken trees and logs in that part of the world.. it's amazing the props were not more badly damaged.
To think we are remotely close to what it would cost to buy a new version of this boat makes me think you are either massively overestimating the monetary input we have invested or massively underestimating what a new 78' aluminum yacht would cost in todays market. Tangaroa was in usable condition when we puchased her and we have been using her for the past 5 years. We have put on over 1200nm just since August of this year. Thanks for the support everyone! Blaine
mo money mo money mo money mo money mo money mo money sounds like it is gonna be a 3/4 pf a million dollar rebuild id sell you my tug, needs nothing and ist cool
Thanks for watching! If you want to know more about Tangaroa - check out our website onboardtangaroa.com. See you next week! Same Time Same Place! Cheers Blaine and Janis
This yacht is such a thing of beauty.
Thanks so much. We are glad we brought her back to life.
This is what I call real engineering, its great to see it, thank you.
Glad you enjoyed it!
Blaine
i enjoy the repair coverage, because you discuss all the engineering issues in a proper discussion , and then follow up action. i thought, drain and wash the diesel tanks before welding, but not here. i,ve never seen that.
Glad you like the format! I definitely would not have expected them to weld without fully removing the diesel but I guess if you back purge the tank with Argon there is no oxygen to burn. I still would not have done it myself.
Blaine
The wormholes are crevice corrosion. Where the aluminium/stainless steel is damaged underwater. And never comes in contact with the air. Corrosion just keeps on going.
I have seen Stainless steel submarine hatches eaten away with crevice corrosion.
Does seawater electrolysis have anything to do with this problem with the shaft log?
It certainly could. Tough to tell. There was evidence of past electrolysis problems in other areas but nothing major.
Blaine
Hello from Siesta Key Florida
Hello and welcome!
Blaine
Seeing those props makes me wonder... Why don't more boat manufacturers do ducted props. They are more efficient, giving higher thrust at lower rpm, but as far as I know, you rarely see them on recreational vessels. They seem to be restricted to big, heavy, industrial ships.
I'm not really sure. Definitely efficiency to be gained there. My guess is that it is purely a cost decision. I have been looking into lots of options regarding future propulsion upgrades and ducted props were one of the things I was researching.
Blaine
Ancient Axiom: a boat is a hole in the water into which you pour alllll of your money.
Always!
Blaine
You cannot have any aluminum in direct contact with steel, rubber must be employed between the two surfaces or one will corrode the other or the weaker of the two that being Aluminum. You need to check your boat for electrical corrosion all metal must shielded from electronic corrosion:
Absolutely! I have been working on sorting all of that for years now.
Blaine
All I am going to say Blaine, is I am glad it is you and not me.
Amazing at how wonky the props were.
It was wild to see a 4GPH difference just from fixing the prop pitch. So much smoother as well unsuprisingly.
Blaine
Did they use a spool gun to weld the aluminum or did they tig it
I wasn't there and Janis is not super familiar with the different welding processes. I asked her what kind they used and she replied "welding" 😂. Unfortunately I can't answer your question with any certainty.
Blaine
@OnboardTangaroaSeatrial understandable. Do you carry a spool gun on board for emergency repairs
I have a Miller Multimatic 220 AC/DC onboard. All of my repairs are currently done with TIG but a spoolgun is on the wish list. Definitely will need one before I tackle the window project.
Blaine
The more I watch your repairs of the earlier years makes my suspicion stronger that this was the first or one of the early boats they built out of aluminum. The way she was built was more for the look than the practicality. The hull could have been built with a deep V all the way to the original stern. Then the engines could have been closer to the stern. Its almost like they were designing the boat for shallow draft. Not sure why they had a cutlass bearing in the shaft log. Did they ever build sisters to Tangaroa or was she a one off.
I think from what they've said at some stage in its earlier life extra length was added to the Tangaroas Transom to extend the waterline and internal space..
@clivestainlesssteelwomble7665 The engines and prop shafts are in the same position when Tangaroa was built. Yes a stern extension was added to her.
I believe there were a few sister ships build with the same basic design cues. She still has a 5.5ft draft so I wouldn't consider it necessarily a shallow draft. Not sure why the engines are so far forward. It does make for a very shallow shaft angle though which helps efficiency.
Blaine
@@OnboardTangaroaSeatrial I did some googling about the original builder. They have a long history of boat building. As I thought they had most if all their experience in building wood vessels. The design of Tangaroa is the old school, the way old wood boats were built. They built high end wood yachts where as boat builders in BC built wood fishboats and other commercial vessels in the same era.
The amount of vessels they produced is pretty amazing for a custom boatbuilder.
Those shafts are areo spec materials still would be high dollar now. One of the main materials used in space X rocket engines
We did get a fair bit of money back from recycling the old shaft luckily!
Blaine
Hopefully you guys are done playing with your shafts 🤣😂
For a while anyway 😂.
Blaine
Don’t apologize it ok
That what she said
🤣🤣.
@ if you can’t have fun the days are long
Couldn't agree more!
Greetings. Your videos are very hard to follow. Blain mentioned a repower. I went to my subscriptions, look at all your videos, and found no repower videos.
Sorry about that. We split our original.channel into two separate channels. One deals with all of the tech stuff and the other is just travel/exploration. This forced us to revamp all of the videos. The repower will be coming out at some point and will be much more detailed than it was originally. We are kind of going through the projects chronologically by when the began but covering them start to finish. Some span years. Makes it a little different but also gives our opinions of projects years after completed and if we plan to do modifications. I'm not sure exactly when the repower is going on the table but seeing as it was one of our most recent projects it may take some time to swing back to that. Thanks for the patience.
Blaine
I like me a long shaft 😉
Lol, thats what she said!
Blaine
Lose the masks !! ridiculous...
You probably don't realize it but that footage in this video was taken smack in the middle of the covid pandemic when masks were the norm. We don't wear masks anymore but I can assure you that if we did, this comment would certainly not convince us to do anything differently to gain your approval. Thanks for watching!
You really bought a lump. By the time you get this thing back to usable condition you will have spent about as much as a new one would have cost. If why you're doing is therapy, that's another story.
You might be right but a new one you have to pay for all at once with cash and you cannot offset the cost with your personal labour and skills
They said they knew it was likely to be a long haul given the boat had been sat so long .. so it was affordable to buy it was to be a live aboard for the family.
Given the tidal range and the amount floating and sunken trees and logs in that part of the world.. it's amazing the props were not more badly damaged.
thats a matter of opinion, go and price a 8m plate ally boat. anyway, hes very skilled and shes very positive, a good combo for a project like this.
To think we are remotely close to what it would cost to buy a new version of this boat makes me think you are either massively overestimating the monetary input we have invested or massively underestimating what a new 78' aluminum yacht would cost in todays market. Tangaroa was in usable condition when we puchased her and we have been using her for the past 5 years. We have put on over 1200nm just since August of this year. Thanks for the support everyone!
Blaine
mo money mo money mo money mo money mo money mo money sounds like it is gonna be a 3/4 pf a million dollar rebuild id sell you my tug, needs nothing and ist cool
Sounds cool but not quite what we are after.
Blaine