SAILBOAT BUYING TIPS - Part 2! A veteran surveyor gives his inside tips -

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  • Опубліковано 2 гру 2024

КОМЕНТАРІ • 215

  • @michaela1655
    @michaela1655 Рік тому +72

    Jim did the survey on my 1985 Grady White Seafarer 22 a few years ago. He was very thorough and fun to talk with. I had already purchased the boat, but in order to get it insured, the insurance company needed a marine survey. I had done a lot of work on the boat after I purchased it, and before Jim surveyed it. He offered me some very good advice about wiring, and he pointed out some delamination of the front deck that I had not found on my own. I live in CT, not far from where Jim lives, and he is a legend in this part of the world.

  • @SalingSamantas
    @SalingSamantas Рік тому +103

    I'd love for you to keep making these survey videos and cover the entire sailboat. This is very good information that every sailor should know. I've not come across another channel doing this yet. I think you are on to something.

    • @jpkatz1435
      @jpkatz1435 Рік тому +4

      Yes, yes.

    • @harbourdogNL
      @harbourdogNL Рік тому +7

      Could not agree more!! So valuable, and despite 10,000 YT sailing channels this is pretty much an untapped channel niche.

    • @johnsmith-iu1dv
      @johnsmith-iu1dv 8 місяців тому

      And judging his reaction, most will probably enjoy the chance at the conversation...

  • @Al-Storm
    @Al-Storm 4 місяці тому +2

    Guys like Jim are rare, and unfortunately a dying breed. I'm my experience, most surveyors are worth a happy meal.

  • @Joe_Not_A_Fed
    @Joe_Not_A_Fed Рік тому +15

    Another very interesting look at the nuts and bolts (and valves) of sailboats. Fascinating stuff. I never gave a second thought about sailing until I got sucked into the Captain Q vortex.
    One thing to remember about any personal project involving a used anything...It is very important to actually use the thing for its intended purpose. In this case...don't wait until your boat is perfect before using it. The projects will never end and eventually, if all you do is work on it, your new love will become just another chore. I learned this the hard way from working on project vehicles.
    Also...try focus on one project at a time. Completing a small chore provides a lot more satisfaction than starting, and not finishing, a bunch of chores.
    Once it's safe and reliable, get some fun out of it. The smiles are the fuel that will keep you motivated.

  • @claytonallen3361
    @claytonallen3361 Рік тому +6

    I don’t know about asking Jim a question. I just want to take him with me to every boat I look at! What a knowledgeable man!

  • @para1324
    @para1324 Рік тому +12

    I hope Jim gets more business for his time showing and explaining this information on the channel. Thanks Jim and Randy. 👍

  • @williamdgurley421
    @williamdgurley421 Рік тому +22

    Randy, this is a very good series. Jim is quite competent. I really appreciate your effort. I encourage you to continue this type of content. Include all systems eventually. Bravo

  • @dmitch1177
    @dmitch1177 Рік тому +10

    I can hardly wait to see a part 3!

  • @hermanator2
    @hermanator2 Рік тому +8

    This series is massively invaluable - a big ‘thank you’ to Jim and Randy!

  • @chowdel
    @chowdel Рік тому +2

    Surveyor saved me thousands on my boat. Had agreed to a sales price pending survey, post survey renegotiated over 15K less to fix issues with boat. Survey is worth every penny!

    • @YachtHunters
      @YachtHunters  Рік тому

      Excellent… yeah a quick pays-for-itself risk reducer… great to hear 👍

  • @paulschumacker9901
    @paulschumacker9901 Рік тому +4

    You were right - this one is also a tour de force! Everyone who’s considering buying a boat needs to watch this. It’s too easy to fall in love with your dream boat, only to find out later that it’s rotting from the inside out. On the bright side, when a competent surveyor gives it the thumbs-up, you are on your way to all the the exciting times you hoped for, and hopefully none of the hidden nightmares.
    So my question is, Randy, did you get a surveyor to go through your boat like this before you wrote the check?
    Either way, I’m enjoying this series immensely. Many thanks!

  • @tippyzuk1
    @tippyzuk1 Рік тому +9

    Jim, very well explained. All good to know for us looking for a boat. Gives us a guide to narrow down the search before we hire the surveyor for "the one".

  • @Useless_Knowledge07
    @Useless_Knowledge07 Рік тому +6

    Knowledge is awesome! I would like to hear about screwed down teak decks and can damage can be foretold without ripping out the headliner? Leaking toe rails too! We see a lot of weepagae around bun holes on deck and if being teak is screwed down, does that mean your screwed.
    This series is bad ass Randy!

    • @YachtHunters
      @YachtHunters  Рік тому +6

      Thanks UK… we’re excited people are enjoying it so we’ll continue on with the rest of the boat.. stay tuned and thanks for watching

  • @anthonyelam2257
    @anthonyelam2257 Рік тому +6

    Thank you for this informative instructional video ... from what I have learned is for a boat to be fully inspected it would need to be lifted out of water ... only then can a proper survey be done ... so much to consider in order to fully get a clear picture on the condition of a boat ... so important ... but the right thing to do ... 😊😊😊

  • @sgeti3994
    @sgeti3994 Рік тому +3

    "That should be a dollar sign" Gave me a good laugh on that one, thanks.

  • @kalli1357
    @kalli1357 Рік тому +7

    Love this bottom up coverage on the sailing boat. very informative.

  • @bendaves77
    @bendaves77 Рік тому +2

    Great thing about getting a quality surveyor is that you are going to know everything that the boat is going to need right away and in the next few years. They've been doing it and have seen the progression of a issue. Starts out a small crack and ends up without proper care being a nightmare for someone

  • @bryanb1259
    @bryanb1259 Рік тому +7

    This is a great series 👍

  • @Mike7O7O
    @Mike7O7O Рік тому +1

    Besides the good one liners, this perfectly illustrates the value of a thorough, professional survey.

  • @bobgaysummerland
    @bobgaysummerland Рік тому +2

    This is good information for the new buyers. It's easy to get into a never ending project without this knowledge and if you are up for a "project" then this is a great way to start your tick list. Great stuff Randay...

  • @bloodyeyeful
    @bloodyeyeful Рік тому +2

    Fabulous show. I'm retiring in a year and saving to buy an old sailboat. This series will be invaluable to me. Thank you and Blessings.

  • @jy2299
    @jy2299 Рік тому +5

    I like this new evolution of your channel. Even more informative than before. Great work. Thanks for your effort. (I do still like the boat reviews- this new direction is just a bonus) I likely will be buying a great lakes sailor within the next couple of years.

  • @borys2767
    @borys2767 Рік тому +3

    Just love the channel!!!! Where is Captain Q? Learning so much I will probably get kicked out of the next boat yard I visit for pointing at stuff....LOL

    • @YachtHunters
      @YachtHunters  Рік тому +2

      He’s busy getting sea dog through obedience school… pointing is better than using the hammer and random boats! 😂

  • @chuck571
    @chuck571 Рік тому +4

    These videos are so great and educational Randy. My best to you and the Captain!

  • @kevingardner1658
    @kevingardner1658 Рік тому +1

    Hey randaay - absolute winner with this format - well done mate

  • @karaDee2363
    @karaDee2363 Рік тому +1

    I love listening to Jim's vast experience, it's always very interesting...
    And thanks Randay for posting Jim's contact info. ..

  • @michaeltedeschi9929
    @michaeltedeschi9929 Рік тому +1

    As someone who would like to get a sailboat later on in life, I will definitely be referring to these videos when I begin the search!! Awesome series
    Editing to add because I almost forgot... Jim is a well of knowledge. Very knowledgeable and nice to see him on the channel

    • @YachtHunters
      @YachtHunters  Рік тому

      thanks very much! Jim will be back to cover more of the survey items for future episodes... fun stuff! thanks !

  • @johnsmith-iu1dv
    @johnsmith-iu1dv 8 місяців тому

    Hope we do not loose knowledge like this. Guys like this are SO undervalued...

    • @YachtHunters
      @YachtHunters  8 місяців тому

      jim will be back this spring to continue the series. he's the best!

  • @susanc.8009
    @susanc.8009 8 місяців тому

    Great to see a show like this for all us who love old boats.

  • @Seafariireland
    @Seafariireland Рік тому

    I understand better now why having a surveyor check out a boat is a win win decision! Great lesson, well done to all. SkipRay.

  • @billmead5052
    @billmead5052 Рік тому +1

    This series is awesome! Thanks Jim and Ran-Day 😁

  • @davidzemke2549
    @davidzemke2549 Рік тому +1

    I'm been out of the design engineering for decades. (Now a consultant @ a much higher level) HOWEVER, before I would design an idea, I would sit down with the maintenance person / department and just ask question. Best day or 2 always..... Every question I would have developed with out the interviews they answered with a reason(s) way. Just a word to the wise. If you or your company wants to develope a new design, sailboat, motorboat,ship, polymorane, airplane, jet, space etc... sit down with these guys and just listen for days .. weeks if possible .. it will save you or maybe the life of your company.

    • @YachtHunters
      @YachtHunters  Рік тому +1

      Couldn’t agree more. If you caught our visit with Walter Schulz, founder of Shannon yachts, he spent over a decade maintaining boats and then went on to design many of the details on his boats to be easily maintained (e.g. removing all tanks could be done with basic tools). I always feel wiser listening to the wisdom and expertise from these experts

    • @davidzemke2549
      @davidzemke2549 Рік тому

      @@YachtHunters lol it is not that common that things are functional and simple... it's hard work to find the correct solution. Keep up the great work. Some day soon I will put my wife in a dementia home but until then I will live and image the possibilities OF SAILING . THANK YOU.

  • @jd739
    @jd739 Рік тому +1

    Excellent! Please more of these!!!

  • @bernardszirth9665
    @bernardszirth9665 Рік тому +2

    Amazing work! So useful to better understand possible issues! Thank you!

  • @QuickChip-v2w
    @QuickChip-v2w Рік тому +1

    Awesome explanation! Very helpful!

  • @tomclause9555
    @tomclause9555 Рік тому

    I could watch this dude all day!!

  • @sallyb3
    @sallyb3 Рік тому +1

    I find these videos extremely helpful. Thank you Jim.

  • @jeffk7017
    @jeffk7017 Рік тому +1

    Randy, Enjoying this series! It looks like you and Jim have been looking only at fiberglass boats. How different would the process be for a wooden-hulled boat? Does that require a different kind of surveyor?

  • @harbourdogNL
    @harbourdogNL Рік тому

    Wow! 1:33 in, and already I've learned something new. Jim could have his own channel. Seriously.

  • @johnnylightning1491
    @johnnylightning1491 Рік тому +2

    Where you found that de-lamination with no water intrusion is it OK to fill that with resin after you let it dry for a while? Keep the good stuff coming Randall.

  • @annhooper726
    @annhooper726 Рік тому

    Excellent footage Ran-Day and Jim,. Thumbs up, as I am learning to buy more confidently

  • @louisfbrooks
    @louisfbrooks Рік тому

    Great series. This needs its own play list.

  • @sacres01
    @sacres01 Рік тому +1

    Hi, thanks Randal for such a terrific video and also for introducing us to Jim! Very insightful and extremely helpful for someone such as myself, who is actively looking for a cruising vessel to live on but only has limited knowledge. I stumbled across this site and am so glad that I did - I am now a subscriber 🙂

    • @YachtHunters
      @YachtHunters  Рік тому

      Welcome aboard, Steve. Glad to hear it was helpful.. there’s more on the way. Cheers!

  • @frankmosses9121
    @frankmosses9121 Рік тому +2

    Learning all kinds of things. Thanks

  • @vinniemontrealangler
    @vinniemontrealangler Рік тому +2

    Great episode. Much education. Thanks Ran-Day !

  • @lab35982
    @lab35982 8 місяців тому

    Fantastic series! A point about winged keels and grounding. I had a 30' Hunter with a winged keel. Sadly she broke her mooring during a hurricane and was beached. I live on the Bay of Fundy with its 29' tides and when she beached on he port side the port wing about 10 - 12" dug into the sand and gravel and wheat the tide came in and tried to lift her, the winged keel secured itself like an anchor and the lifting forces were so great that she broke her back. We only discovered the break when we lifted her with a transit lift and water was leaking out of the keel and when the yardman pushed on the keel, it swung big a pendulum. Had we craned her onto a trailer we would not have discovered the keel had failed. The boat was a total write-off.

  • @bin_chicken80
    @bin_chicken80 Рік тому

    Interesting series Ran-day. Thank you and Jim!

  • @windrider65
    @windrider65 Рік тому +1

    Another video packed full of good info.

  • @CheekyMonkey1776
    @CheekyMonkey1776 Рік тому +2

    Question:
    I’ve always wondered if sailboats primarily sailed on freshwater (Great Lakes) do better or worse when it comes to these problems.

  • @Abc-kf4qx
    @Abc-kf4qx Рік тому +1

    Excellent! Can we expect a part 3, topside and interiors?

  • @richardhill2260
    @richardhill2260 Рік тому +1

    Very informative show thanks Randal

  • @jimrellis
    @jimrellis Рік тому

    Wow, Jim has a ton of knowledge. Lord! I wonder how someone gets started in marine survey. Are there apprentices?

  • @carlosdias8404
    @carlosdias8404 Рік тому

    Thank you very much for the education. Important, interesting and well presented.

  • @philipstrachan6212
    @philipstrachan6212 Рік тому

    What a great series. Thanks.

  • @alfonsoescobar1209
    @alfonsoescobar1209 Рік тому

    Omg been waiting for this part 2.

  • @martyspargur5281
    @martyspargur5281 Рік тому

    Thank You, Randall And Jim!
    The thing that I like about surveyors is that they are compelled to only tell the truth. Presented with no bias.
    I found Alan Vaitses book at a yard sale and you could tell that it hadn't even been read... maybe a little dry for most readers. But after going through it a few times, I realized that it had information that you couldn't find written down Anywhere else. That book was about the basics, without any complications like electronics, battery killers (inverters), or other modern gimmicks (tailgates come to mind). These surveyors have Forgotten more of their knowledge than the rest of us will ever know.
    But this is supposed to be the "find a sleeper channel". Part one had a comment about "ok, so we spent the whole video looking at shafts!". Let's move on, lets get to the meat and potatoes! Happily, this video expands beyond the mundane and into the fascinating world of Ballast.
    Maybe this is a little much after all. And I have noticed that some yacht brokers sweat bullets around surveyors. So let's move on already, if you could just do a video on rudder bearings and quadrants please first?
    Thank You

    • @YachtHunters
      @YachtHunters  Рік тому

      Thanks Marty! Now I want to find a copy of that book to see what else I can pick up to advance my position on the educational learning curve. We plan go over the rest of the boat step by step… seems like you have your own stash of good tips to share from your experience. Always great to have you pop in with some tips

    • @martyspargur5281
      @martyspargur5281 Рік тому

      @@YachtHunters This is part of Jim's Legacy. However many of these he can afford to do will definitely be appreciated.
      Personally, I often need to think about what I see before I know what to do about it. Walter touched on this briefly.
      I'm (We're?) super into learning because once we're off soundings we know that anything can go south at any time, and how we rig our own boats really could mean life or death. The more we learn, the more sense everything makes, and we realize the boat isn't a bunch of stuff thrown together a la carte. It's a machine that depends on everything working together.
      Sorry I don't have any tips today ok maybe one,
      Plastic thru hulls at the waterline or above (like a shower sump line) exposed to light can break off when you aren't looking, if they're more than a few years old. The outside flange comes off as a ring, the barb or threaded part falls off inside. You can guess the rest.
      Thank You Randall

  • @yanassi
    @yanassi 8 місяців тому

    Jim is really informative. I’m curious when it comes to new/newer boats, what does jim think in terms of how manufacturing has improved? Is there a company who has paid attention to the quality of their builds?

  • @coldnorthadventures5905
    @coldnorthadventures5905 Рік тому

    This was the most interesting video l have seen for a long time.

  • @mauroceresa1219
    @mauroceresa1219 Рік тому +1

    Great videos. Question for Jim, at 16:55 of the video there is red paint missing all around the hole. Is this a sign of bad maintenance of the hull paint and possible source of moisture damage to the hull. Thanks.

    • @martyspargur5281
      @martyspargur5281 Рік тому +1

      Is that a steel hull? Because if it is then why is the thru hull bronze? But that thru hull has no outside flange, unless it's a "countersunk" flush flange. But what about the visible seam, around the hole on the outside, that looks like the "spigot only" part of a modified thru hull, screwed into hull plating from the inside? That's probably not a flush flange.
      Translation: What is it? It just looks spooky. Thanks.

  • @lawrencepavesejr.9754
    @lawrencepavesejr.9754 Рік тому

    So informative and such important topics related to monies spent on ones recreational investment. Thank you Ran-Day for your efforts and keep up the action..

  • @maurofieni
    @maurofieni Рік тому

    great videos- Thanks = Mauro . . . .and Jim looks like a great perso too

  • @lancedaniels
    @lancedaniels Рік тому +1

    Thanks for posting and sharing.

  • @louiskirby4266
    @louiskirby4266 Рік тому

    Thanks Team Q and mighty the mighty Jim, l’ll be coming to the US to buy a cracking yacht . Love the passion and content . Beers 🍻 up lads

  • @sailor1261
    @sailor1261 Рік тому

    Great vid Randy & Jim. Thank You.

  • @MudLogger
    @MudLogger Рік тому +2

    Question for Jim... Will surveyors open floor boards and closed compartments? If not, how do we get around this for a proper inspection? Example mast step plates and chain plate coverings.

    • @earthman3000
      @earthman3000 Рік тому

      Yes of course. They open up everything.

  • @rickynsue
    @rickynsue Рік тому

    Congrats🎉🎉🎉to my favorite UA-camrs

  • @spectralize13
    @spectralize13 Рік тому

    Fabulous information. Please cover every part of a boat.

    • @YachtHunters
      @YachtHunters  Рік тому

      That’s the plan! Glad you enjoyed it 👍👍 thanks

  • @vincentsrzentic596
    @vincentsrzentic596 Рік тому

    Very informative, thank you so much!

  • @ragingpatriot772
    @ragingpatriot772 5 місяців тому

    I really enjoy this show

  • @markpeter1968
    @markpeter1968 Рік тому

    I hope the captain is ok? Ive re-watched all your old yacht hunting episodes. Love getting the captain Q's take on older boats.

  • @shermanjenne3154
    @shermanjenne3154 Рік тому

    I sure enjoy these informative lessons

  • @mojoneko8303
    @mojoneko8303 Рік тому +2

    Too bad this kind of video wasn't available when I bought my first sailboat in the 80's. It turned out okay but that was dumb luck.. A segment on how to pick a reputable, competent surveyor would be helpful. Thanks for the video.

  • @DCGULL01
    @DCGULL01 Рік тому

    Umm, can you do more of these & I'll reach out to Jim directly. Thank you!!!

  • @chip9177
    @chip9177 8 місяців тому

    Not all surveyors are the same. Jim seems great, I read some surveys that were a joke so to speak.

  • @o4pureh2o
    @o4pureh2o Рік тому

    Another excellent lesson. Thanks

  • @donnykincaid8133
    @donnykincaid8133 Рік тому

    Great information, Thank you for making these video's

  • @Celt_Downunder
    @Celt_Downunder 7 місяців тому

    You’re such fun. Made me laugh a few times. Very smart too. I have learned a lot from your videos. Thank you. Generally boats mean $ signs LOL. In Australia we rarely see boats on the hard as we don’t have the good winters as such. So we have to dive to find out about Prop Rudder and Keel.

    • @YachtHunters
      @YachtHunters  7 місяців тому +1

      hahaha great to hear! What great fortune to be able to sail all year-round.... just make sure you don't forget to dive once i awhile otherwise you'll get a big sealife beard on your hull :)

    • @Celt_Downunder
      @Celt_Downunder 7 місяців тому

      @@YachtHunters we are certainly blessed to be able to sail all year round. The boats come out once a year for anti foul etc and have regular divers as we race all year. Wednesday afternoons. Friday Twilights. Saturdays in summer and Sundays in winter as well as a heap of annual regattas. Channels like yours certainly take my learning to the next level. So appreciative. Note to self - must buy a plastic mallet. 🔨

  • @jackwalby6257
    @jackwalby6257 Рік тому +1

    Ha thirty years in the Marine industry and I know that almost every rudder older than 10 years is wet!! Fortunately I'm in the freshwater market were the fail rate goes way down.

  • @vivianshark9966
    @vivianshark9966 Рік тому +1

    Randay...what did you do to the Captain Q?

  • @garyhammond2213
    @garyhammond2213 5 місяців тому

    Fascinating!

  • @tarivard
    @tarivard Рік тому

    I always drilled holes in the bottom of my rudder at the end of every season. Some water would come out and the "on the hard" time allowed it to dry out. I just plug the holes every spring with thickened epoxy. I suspect water was coming in through the top of the rudder.

  • @bendaves77
    @bendaves77 Рік тому

    Ran-dayy, I have a question. When looking for a quality surveyor what license or qualification or schooling is the best and or what should we ask for when shopping for a quality surveyor? Im sure a boat sales company will have their own beloved surveyor which is perhaps as picky as needed

  • @claydanenhower9335
    @claydanenhower9335 Рік тому

    Great show!

  • @johndodds7949
    @johndodds7949 Рік тому

    I love this information

  • @vancekeith5642
    @vancekeith5642 Рік тому

    Great videos, thanks

  • @AwsomeLifeofBrian
    @AwsomeLifeofBrian Рік тому

    In my experience with balsa cored boats and centerboard trunks etc. is: eight coats of epoxy paint on the inside and outside are required to keep water out!!!! Water is a universal solvent and can turn a solid fiberglass hull into a flacid erectile dysfunctional trash heap! 8 COATS starting with barrier coat/primer, 4 coats, then 4 top coat layers! any questions?

    • @YachtHunters
      @YachtHunters  Рік тому

      sounds like an insurance place to coat in epoxy...

  • @SmartLearningAI
    @SmartLearningAI Рік тому

    I would like to get a cape dory 27 or 28 but can't make my mind which one. ie diesel vs outboard in a well. Mostly coastal cruising. Thoughts? Pro/Cons of both appreciated.

  • @MrBrody1961
    @MrBrody1961 8 місяців тому

    I used to have a Bristol 33. Nice Boat !

    • @YachtHunters
      @YachtHunters  8 місяців тому

      love the bristols.... great, long-lasting boats! cheers

  • @kejung1
    @kejung1 Рік тому

    Many thanks 🙏

  • @earlhunt2815
    @earlhunt2815 Рік тому +2

    Can Jim address some concerns on aluminum hulls and keels? I know the market favors fiberglass, however I think Norwegian and Antarctic sailing is safer with aluminum even though it costs much more.

    • @YachtHunters
      @YachtHunters  Рік тому +1

      Sure can… and if you plan on heading north having aluminum or steel is a great idea. Thanks!

    • @YachtHunters
      @YachtHunters  Рік тому +1

      Actually my son in law just did the nwp in 47’ FG sloop ..with no issues relating to integrity the build.
      Apparently all the other passage makers they encountered were in aluminum or steel . He had no issues. His story will be published by National Geographic in book and film. Look for it this summer

    • @earlhunt2815
      @earlhunt2815 Рік тому +1

      @@YachtHunters Would you let us know when his story is released? Thank you

    • @jf5336
      @jf5336 Рік тому

      Brand new subscriber and wannabe boat owner. These inspection videos are wonderful ...here's my stupid question: how are these inspections done if the boat is in the water?

  • @johnhopkins6731
    @johnhopkins6731 Рік тому +1

    Can you drill a hole in the bottom of a rudder to drain the water, then just seal it back up after?

    • @jackwalby6257
      @jackwalby6257 Рік тому +1

      Happens all the time. All depends on how long the water has just been sitting there. Unfortunately there's no X-ray nor MRI way to look inside to know exact condition.

  • @danielsondavidf
    @danielsondavidf Рік тому

    Excellent!

  • @rsbrehm
    @rsbrehm Рік тому

    What about "blisters" on fiberglass hulls?

  • @peteh8077
    @peteh8077 Місяць тому

    Im absolutely buying a moisture meter...

  • @TheJamesthe13
    @TheJamesthe13 Рік тому

    Interesting stuff. How did he become a surveyor?

    • @YachtHunters
      @YachtHunters  Рік тому +1

      Good question… we’ll definitely ask him!

  • @stevenr8606
    @stevenr8606 Рік тому

    👍 as always. BTW, what happened to Captain Q ?!?

  • @kayweiss1862
    @kayweiss1862 Рік тому

    Good idea to invite surveyor expertise !.Could you include following topic :
    mast stability?! what to look for ,difference of fixed on deck , hull ,tabernacle ?

  • @mboyer68
    @mboyer68 Рік тому

    I couldn't understand why it makes any difference which nut goes on first, so i Googled it. It makes sense!
    Look at the threads on a propeller shaft, grooves cut into the metal. Between the crests of each thread is a V-shape whose sides are called flanks in engineering speak. When you put a nut onto a shaft, notice as it turns its way up the shaft, the nut is doing so by pushing against the outer flanks of each thread as it winds its way up towards the propeller. When the nut bottoms out against the hub of the propeller, and you tighten the nut snug with a wrench, the nut is tight because its internal threads are firmly seated against the outer flanks for as many threads as the nut covers.
    Proper installation begins by installing the half nut first and tightening it just snug enough to “preload” the half nut onto the shaft against the prop hub. Tight but not with all your weight on it.
    Then the thick nut goes onto the shaft. When it reaches the half nut, this is where the engineering magic happens.
    With a second wrench on the half nut to keep it from turning, you continue to tighten the thick nut against the half nut. As one applies more torque to the larger nut, which has twice as many threads and is therefore more powerful, the thick nut begins lifting (or unloading) the half nut off the outer flanks of the shaft threads. As you fully tighten the thick nut, the half nut releases its pressure on the outer thread flanks and is pushed hard against the inner thread flanks and against the prop hub. The two nuts are effectively now pushing against each other, and they will stay that way forever.
    The greater number of threads of the larger nut means it will always win this contest, also because the half nut has nowhere to go. The two nuts will not come off due to vibration or engine use. Ding a blade and the nuts will stay tight. Have a cutless bearing back out and you will have other things to worry about in the vibrating chaos that follows, but not about losing the propeller. That happened to me once in the Caribbean…another story.
    The purpose of the prop nuts is to make sure the propeller stays seated snugly against the shaft taper. In normal operation, prop nuts don’t really take much load anyway, as thrust from the engine keeps the propeller pushing onto the shaft. In reverse there may be some load on the nuts but that is temporary and nothing to worry about.
    So why make a big deal about these two nuts, and the order of how they are installed? Because it is the proper way to do it, and that is reason enough.

    • @YachtHunters
      @YachtHunters  Рік тому

      Fantastic homework job… you’re hired for our research department… that makes even more sense now. Well done & cheers!

    • @YachtHunters
      @YachtHunters  Рік тому

      That’s the nuttiest reply we have ever had !!!
      But I love the engineering behind it
      Give the man a giant seegar !
      Thank you for taking the time to research and share
      Do you have a link to your google discovery?🤗

  • @robertmcmahon1221
    @robertmcmahon1221 Рік тому

    Thank Jim for us, please

  • @basilbrushbooshieboosh5302
    @basilbrushbooshieboosh5302 Рік тому

    Magic. Thanks