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Thread: Just fore the fun of it:)

  1. #4936
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by John B View Post
    Since every time I open this thread ( which is several times a day)I think to myself , "fantastic, congratulations Mr Lemonhands and Nat, those of the order of the extravagent sandpaper, well done , doesn't she look great".... I forget whether I've actually said that.

    Brilliant , really pleased for you guys to see it's all gone so well.

    Really nice of you to say so John, but you really should stop opening this thread several times a day....talk about extravagent!

    I am still in a state of un-believingness that this boat floated as well as she did and continues to do so despite my continued efforts at loading her up with all sorts of supplies or "junk", as Nat is fond of saying. It does feel odd too, pulling up various floor boards,bending over and having to pass the vacume cleaner to remove the sanding dust which had settled throughout the multiple bilge compartments.


    Still waiting for the bluesandpaper withdrawal symptoms to begin. But not to worry, lots of medicine on hand for when that happens!



    Cheers!



    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  2. #4937
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    Default Re: Just fore the fun of it:)

    i too have the problem of opening this fine thread several times a day ,especially since you have such a way of putting wit into words and making everyone laugh and chuckle like you do

  3. #4938
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by ChrisBen View Post
    FTFY.


    Although I know I'll never have what it takes to do stuff like that with pictures, it is very nicely done.Thanks Chrisben!! While your at it, could you tweek the waterline a bit so that is follows the sheer of the rub rail somewhat? I like a waterline that is happy and smiles!



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  4. #4939
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    Default Re: Just fore the fun of it:)



    Those SMD's look a little naked there Peter, don't you have something appropriate to cloth at least one of them??
    Larks

    “It’s impossible”, said pride.
    “It’s risky”, said experience.
    “It’s pointless”, said reason.
    “Give it a try”, whispered the heart.

    LPBC Beneficiary

    "Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great!"

  5. #4940
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    Default Re: Just fore the fun of it:)

    I'd have to make a custom paintbrush 1/2 a pixel in width and height to smooth it out more, it's a bit choppy but gives you the idea of what you're after. Ummm, you aren't leaving any rings on that shiny tabletop are you? Nat will tan your hide.
    "Bundinn er bátlaus maður" Bound is boatless man.

  6. #4941
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by Larks View Post


    Those SMD's look a little naked there Peter, don't you have something appropriate to cloth at least one of them??

    I most certainly do Gregg, I most certainly do! But it wouldn't look right, without the proper medicine inside and besides, these SMDs were drawn down so quickly they hardly had the time to acclimate themselves.Once most of the fitting out is completed and things begin to slow down some, I'll gradually introduce "him" to his new home with a medicine he is more familiar with. Trust me!


    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  7. #4942
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by ChrisBen View Post
    I'd have to make a custom paintbrush 1/2 a pixel in width and height to smooth it out more, it's a bit choppy but gives you the idea of what you're after. Ummm, you aren't leaving any rings on that shiny tabletop are you? Nat will tan your hide.

    By George, that was quick! You've hit it right on the head ChrisBen and she looks much happier for it too!

    As for that table, there is a story of heart-break,frustration and resignation behind it followed by hope for a brighter future. In other words, Nat really hates the finish on the table,as do I, and couldn't care less for "rings".We will correct it for next seasons' use. The picture of it is rather deceptive as it does not show why we are rather displeased with the finish. We know we can do better!

    Thanks again for the photo touch up,especially the waterline. Very happy indeed!


    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  8. #4943
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    Default Re: Just fore the fun of it:)

    So did you get any sleep at all in the last two months?
    I keep forgetting to ask if the fuel,water and holding tank fittings are accessible from the deck or if you need to be standing on something like a dock to get at them.
    R
    Sleep with one eye open.

  9. #4944
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by Ron Williamson View Post
    So did you get any sleep at all in the last two months?
    I keep forgetting to ask if the fuel,water and holding tank fittings are accessible from the deck or if you need to be standing on something like a dock to get at them.
    R
    Sleep? Perhaps not as deep,long nor restful as most but yes Ron, sleep she did visit on occasion.

    If by "fittings" you are refering to the fill pipes, yes,they are easily accessible from the quay(dock). However, if it is somethng else you intended,then my reply is yes, easily accessible from anywhere inside the boat

    I can't believe it was only a short while ago when you visited and we seemed so far away from ever launching her. Where has the time flown!?



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  10. #4945
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    Default Re: Just fore the fun of it:)

    Okay, sure."Fill" pipes,except only two should be for filling and one should be for emptying.
    Two on one side and one on t'other,IIRC.
    Not a crit,but you might want to figger a way to access the orphan one without turning the boat around.
    If the orphan is water you may be in good shape,as you may not need to fill it often.

    Yes,the time she does fly.FIL's boat is already in the shed.
    R
    Sleep with one eye open.

  11. #4946
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by P.L.Lenihan View Post
    Still waiting for the bluesandpaper withdrawal symptoms to begin. But not to worry, lots of medicine on hand for when that happens!
    Just tossin' this out there but...... if you're really suffering from the withdrawls of sanding I have plenty of that ahead of me and am willing to share!

    Quote Originally Posted by P.L.Lenihan View Post


    That's the EXACT "Cat that ate the canary" grin he had on his face when I left the boat yard almost three weeks ago!
    ---------------------------------------------------------------------
    She:Kon, pronounced "Say-go" is a traditional Iroquois greeting that means "Do you still have the Great Peace?" (Old forum name: KnottyBuoyz)

  12. #4947
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    Default Re: Just fore the fun of it:)

    Carrying on brightly with pre-launch stuff left to the last minute;the extension platform for the aft deck. The intention with this folding platform is to allow one, say when at anchor, to lower the platform and presto!, a patio appears. I could have easily lived without it but Nat,ever the party animal, insisted on the dance flo....er...patio deck.Of course,me with ten thumbs and not much else, was hardly in a position to argue.

    So off I went and ordered a single sheet of some wonderful and glorious 1/2" Signal MDO just for Nat.
    Upon its' arrival at the bowshed, I right away traced out and cut the thing to size, even going so far as to add a nice bit of crown to the trailing edge, for looks only.









    Here we see the freshly cut out sheet just resting more or less where it will become fixed to the hinge.







    A view from da udder side.As one may imagine, when this platform is raised, it will provide a safe and secure "life line" to prevent anyone from falling off backwards while the boat is underway. I think this will become the favorite gathering spot for smokers to lean over the rear watching the ever lengthening wake slip out to the horizon while BSing each other.






    Here we see the deck lowered, just for me to see how it will end up looking. Also clearly visible is that wonderful huge stainless steel hinge given to me by fellow forum member Doug B. slightly over a year ago. THANKS AGAIN DOUG!! For those who like to know these things, those are number 14 screws,3 inches long, buried in the big chunky mahogany cross member.






    Satisfied with how the deck looked, I scrounged up some bits of mahogany 2X3s and proceeded to establish a perimeter frame work.Here we see the dry fitting has already been completed and the faying surfaces wetted out with some epoxy just prior to the arrival of the thickened epoxy and the screws.






    The lower cross member and the two ends now screwed and epoxied in place with a nice fillet along the inner face of the frames. The red taped stuff is just for the lamination of the aft edge of the platform as this radius is to great to simply bend a 2 X 3 around. I wanted to be able to laminate the thing in place and then remove it for cleaning up and final trimming. Unfortunately, due to the hurried nature of events, this fun step was skipped as we became funneled toward a launch date.





    Instead, an executive order was heeded and the inner patio support members were installed instead, followed by an on-the-fly lamination derby, with her Highness scoring big points for helping out with the sticky and slippery laminates. Pictures of these antics, per force, took a back seat.





    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  13. #4948
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by knottyBuoyz View Post
    Just tossin' this out there but...... if you're really suffering from the withdrawls of sanding I have plenty of that ahead of me and am willing to share!
    That's the EXACT "Cat that ate the canary" grin he had on his face when I left the boat yard almost three weeks ago!
    O.K. Rick, I lied about suffering withdrawal, but don't tell Nat......she is babying me and feeling sorry for me as I transition from ten thumbed woodbutcher to ten thumbed boatbum and to be perfectly blunt, I like the way babys me!

    However, once we haul out for the winter, I just may take a ride up stream to put an honest days sanding in for ya. I really do like sanding....just not missing it at the moment

    Can't help the grinning, as I come from a long line of grinners and clowns.It's in me blood!!



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  14. #4949
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by Ron Williamson View Post
    Two on one side and one on t'other,IIRC.
    Not a crit,but you might want to figger a way to access the orphan one without turning the boat around.
    If the orphan is water you may be in good shape,as you may not need to fill it often.

    Yes,the time she does fly.FIL's boat is already in the shed.
    R

    Good point Ron. As it stands now, the orphan one is indeed for the water and with 52 gallons on board, we are good for awhile.The quay side has the two pump out fittings. However, now that I think of it, watering and pumping is done at the service dock and the boat can come in on whichever side needs the most attention. I'll have to live with turning the boat around once in awhile as I am loath to add further matching hull recesses for the sake of avoiding turning her around. I'm too lazy!!


    FIL boat out already? Indian summer hasn't even arrived and the Fall colours are only the verge.......unless it is cooler and sooner up your way.


    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  15. #4950
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    Default Re: Just fore the fun of it:)

    Is Simon onboard?

    (nice engine btw. herd nuttin but good things about those yamahammers!)

  16. #4951
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    Default Re: Just fore the fun of it:)


    "For those who like to know these things, those are number 14 screws,3 inches long, buried in the big chunky mahogany cross member."

    Tenner, You're clearly BSing us on that. I counted those screws they are clearly 13 in number. Length I'll take your word on because all 13 are burried up to their little necks in that nice hunk of mahogany. IF MAHOGANY IS IT'S REAL NAME..............
    If one advances confidently in the direction of his dreams, and endeavors to live the life which he has imagined, he will meet with a success unexpected in common hours.
    -Henry David Thoreau-

  17. #4952
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    Default Re: Just fore the fun of it:)

    Here's a slightly improved shot of ChrisBen's virtual sheered waterline...

    Now is a good time!


    Steward of MAKOTO [WB Magazine #232], and Honored Member of the LPBC

  18. #4953
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    Default Re: Just fore the fun of it:)

    Hey Peter,
    I like your little back deck invention there. Three cheers to Nat for demanding it from your 10 thumbs. I would love to see some pictures of it in its lowered and operational setting.

    - Cam
    "And all I ask is a tall ship and a star to steer her by..."

  19. #4954
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by P.L.Lenihan View Post
    Although I know I'll never have what it takes to do stuff like that with pictures
    Nonsense, I just watched you build a boat with a jig saw, angle grinder, block plane, a couple of chisels and some used sandpaper.
    Quote Originally Posted by P.L.Lenihan View Post
    Thanks Chrisben!!
    Nay Peter, tis I who'll be thankin you for 3 plus years of daily entertainment while I drink my morning coffee.
    "Bundinn er bátlaus maður" Bound is boatless man.

  20. #4955
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    Default Re: Just fore the fun of it:)

    Hey Chris, you forgot that Peter also used a skil saw to cut the cabinet stock.

    But I must say, following Peter's lead, I used my angle grinder the other day to curve the bottom of the new Teak hatch ring I had made. It worked like a charm!
    Now is a good time!


    Steward of MAKOTO [WB Magazine #232], and Honored Member of the LPBC

  21. #4956
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    Default Re: Just fore the fun of it:)

    Aft deck extension platform continued........

    As we crunched away during the final days at the boat yard, my two remaining neurons had me feeling like I had two hyper-active hamsters,on steroids, going bananas on their circular treadmills. The net result of that craziness going on "up stairs" was a seriously dis-jointed and pathetic photo record of how things went.

    In other words, we jump magically to this:




    The platform is now right side up, the intermediate support beams,seen previously, have been epoxied snd screwed in place underneath and the wonderful Doug B hinge has been dry fitted to the platform. Here we see some QuikFair epoxy about to be mixed and then used to quickly fill the recessed screw holes.




    Quikfair fairing putty is nice stuff to use and really appreciated here as it cures to a sandable state in but a few hours time and does not shrink as it cures. This stuff is a 2 to 1 ratio mix and I just cut some small PVC pipe to measure my amount accurately.One has just to guessestimate how much fairing compound one needs and then cut 2 lengths of PVC pipe,with one lengh exactly half the length of the other.Hopefully the mixed volume will equal what ya needed for the job.





    A few hours later and the Quikfair is sanded flush over the screw holes.Being an epoxy based fairing compound, it is far easier and quicker to sand that straight old fashion thickened epoxy!







    Next up, the Doug B hinge is removed from the platform and the platforms' surface cleaned of dust in preparation for the first of two coats of some high build epoxy primer, seen here during its' induction period inside a closed yogurt container.






    And here she is, after the first coat.I know, this is terribly exciting stuff and hard to take perhaps at this early hour but brace yourselves for just one more.........





    There you go.The last photo of the platform. The next time she is seen she is already installed on the boat. Nat was rather flustered however, at not having had enough time to at least put a coat or two of paint on it but dems da breaks. Lots of time for doing some pretty work once she is hauled back out for the winter!




    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  22. #4957
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by A.Greever View Post
    Is Simon onboard?

    (nice engine btw. herd nuttin but good things about those yamahammers!)
    Mr.Greever, I am pleased to inform you that yes, Simon Bates is indeed on board and for once in his miserable plastic bastid life, he is keeping to himself while the rest of us carry on, undisturbed during our small fitting out tasks and moments of exquistite leisure. He has a new friend to play with nowadays and "we" couldn't be happier!



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  23. #4958
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by Sailor View Post
    Tenner, You're clearly BSing us on that. I counted those screws they are clearly 13 in number. Length I'll take your word on because all 13 are burried up to their little necks in that nice hunk of mahogany. IF MAHOGANY IS IT'S REAL NAME..............
    It is precisely during moments like this,while reading posts like this, where I really feel bad about not having quick and ready access to whateverthehellitisyou'redrinking Daniel, as I remain convinced it would do wonders for my own pathetic state of comprehension and over all well being. It is clearly having a salutory effect on your own good self !



    Cheers!



    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  24. #4959
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by ChrisBen View Post
    So where's Pebbles? Didn't see her in the launch pics (Congrats on that by the way). Hope your not lettin rain water drip down inside on Nats paint and cetol work. And grab rails in the cockpit ? Pics mon, we needs pics.

    Ah yes, dear old Pebbles.......Well,ChrisBen, she is in a machine shop waiting for surgery. The problem concerns her inside flange which is too short for the cabin thickness.The solution appeared obvious after asking the question here;http://forum.woodenboat.com/showthre...ghlight=bronze

    However, after several visits to as many machine shops, I'm told the bronze flat bar I bought cannot be rolled and fitted to the existing flange as the bronze flat bar will crack/chip/ and split while it is being rolled to conform to the radius of the porthole flange.


    Only one machine shop has a "solution" which appears to be getting hold of a bronze ring the same diametre as the porthole flange,machining a lip on it and then press fitting it in place. All sounded good until the price for this was discussed.$900.00 CAN.! Some may say,"Hey Tenner, you idjit, that's nuttin' compared to the overall cost of the boat fool!" Indeed, it is small potatoes in the grander scheme of things but I'm having a hard time swallowing the price considering the entire porthole,new, cost me less than $300CAN and that even included shipping from England! Nat suggest buying another porthole,cutting off its' flange and silver brazing the darned thing my self for a savings of near $600. I'm still rolling that idea over in my head while the machine shop owner remains at a loss to clearly explain why I should pay 3 times the price of the entire porthole for a flange extension and I'm even supplying the bronze.


    Were waiting while other stuff carries on happily and hope to have Pebbles in fine form before next summer



    Thanks for asking!



    Cheers!


    Peter



    P.S. the cockpit has two hand rails(grab rails) just forward of the cabin bulkhead,port and starboard.....
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  25. #4960
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    Default Re: Just fore the fun of it:)

    Speaking of handrails or grabrails, I am wondering if there is a relatively easy or simple method I could use to evaluate my boats' actual stability,as built. I would have liked to ask the boats' designer,but he is no longer available for this earthbound clown.

    I ask this since it has been observed throughout our engine breaking in period,whenever we would encounter wakes from other passing craft, how the boat pitches but hardly rolls as we encounter their wakes from various angles. I know I should not complain about not rolling, but it does feel odd and almost counter intuitive considering this boats narrow wl beam(7'11"),loa of 31' and a draft of 11 inches. Standing on the aft deck,while at the quay, I can get her to roll easily by rocking from side to side yet when underway,she hardly rolls.

    Another thing I've noticed, especially as we near the end of the engine breaking in period and get her running smoothly at her hull speed of aprox. 6.5 knots, is that she leans outward in a turn whenever we put the helm over too quickly.

    Never having owned a power boat before and certainly nothing this size, leaves me like a new born pup at the races.I haven't a clue what is "normal" or not.

    Any thoughts, suggestions or ideas appreciated as always!

    Cheers!

    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  26. #4961
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by riversailor92 View Post
    Hey Peter,
    I like your little back deck invention there. Three cheers to Nat for demanding it from your 10 thumbs. I would love to see some pictures of it in its lowered and operational setting.

    - Cam
    Hi Cam,

    No invention of mine but rather an option presented on the plans. We hope to get some "operational" pics of it before the boating season is over up here. I'll second your three cheers to Nat.....she drove the whole operation with a firm hand and a warm whip! Were it not for her, I would still be plodding along happily guzzling beer in the bowshed and taking pictures of how I screwed and glued stuff together. I'm much happier with the boat in the water! Trust me!!



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  27. #4962
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by P.L.Lenihan View Post
    Speaking of handrails or grabrails, I am wondering if there is a relatively easy or simple method I could use to evaluate my boats' actual stability,as built. I would have liked to ask the boats' designer,but he is no longer available for this earthbound clown.

    I ask this since it has been observed throughout our engine breaking in period,whenever we would encounter wakes from other passing craft, how the boat pitches but hardly rolls as we encounter their wakes from various angles. I know I should not complain about not rolling, but it does feel odd and almost counter intuitive considering this boats narrow wl beam(7'11"),loa of 31' and a draft of 11 inches. Standing on the aft deck,while at the quay, I can get her to roll easily by rocking from side to side yet when underway,she hardly rolls.

    Another thing I've noticed, especially as we near the end of the engine breaking in period and get her running smoothly at her hull speed of aprox. 6.5 knots, is that she leans outward in a turn whenever we put the helm over too quickly.

    Never having owned a power boat before and certainly nothing this size, leaves me like a new born pup at the races.I haven't a clue what is "normal" or not.

    Any thoughts, suggestions or ideas appreciated as always!

    Cheers!

    Peter
    Try this:
    Knowing the boat's natural roll period is an excellent indication of its stability, and there are several rules of thumb we can use to evaluate roll period. In general an acceptable, but minimum, natural roll period (seconds) should be equal to a vessels maximum waterline beam in yards. For example a boat with a 30-foot beam should have a roll period of 10 seconds (30 feet/3 feet per yard = 10 yards or 10 seconds). Cruise ships with beams of 100 feet have roll periods of approximately 30 seconds (100 feet/3 feet per yard = 33 yards or 33 seconds). Additionally, a vessel's natural roll period may be calculated using this formula:Natural Roll Period = (.44 x Vessel’s Beam)/ Square Root of GM
    GM is the distance between the vessel's center of gravity (CG) and the metacenter (M), where metacenter is defined as the point through which the center of buoyancy acts when a vessel heels.
    You can get her rolling by moving your weight back and forth across your cockpit. Then count and time 10, 20, or any easily divisible number of rolls (port to starboard and back is one roll). Do the sums and you have a measure of stability or as we "waste of times" call it GM. I'd be interested to see what you get.
    It really is quite difficult to build an ugly wooden boat.

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  28. #4963
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    Default Re: Just fore the fun of it:)

    Quote Originally Posted by Cogeniac View Post
    Hey Chris, you forgot that Peter also used a skil saw to cut the cabinet stock.
    Yeah, I think we've seen a drill once or twice too. I'll bet he just borrows them from a sympathetic neighbor as the need arises.
    "Bundinn er bátlaus maður" Bound is boatless man.

  29. #4964
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    Default Re: Just fore the fun of it:)

    Google "Inclining Experiment" and you'll come up with this:
    http://en.wikipedia.org/wiki/Inclining_test
    Go there, do what it says.
    Your welcome (for the driving lessons this winter and the link above)
    If one advances confidently in the direction of his dreams, and endeavors to live the life which he has imagined, he will meet with a success unexpected in common hours.
    -Henry David Thoreau-

  30. #4965
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    Location
    Rockford, Michigan
    Posts
    166

    Default Re: Just fore the fun of it:)

    Quote Originally Posted by P.L.Lenihan View Post
    Mr.Greever, I am pleased to inform you that yes, Simon Bates is indeed on board and for once in his miserable plastic bastid life, he is keeping to himself while the rest of us carry on, undisturbed during our small fitting out tasks and moments of exquistite leisure. He has a new friend to play with nowadays and "we" couldn't be happier!



    Cheers!


    Peter
    Excellent! I love a happy ending! Especially when I,... er,... oh, nevermind!

    Enjoy the rest of the season!

  31. #4966
    Join Date
    Oct 2001
    Location
    Flattop Islands
    Posts
    2,330

    Default Re: Just fore the fun of it:)

    Quote Originally Posted by P.L.Lenihan View Post
    I am wondering if there is a relatively easy or simple method I could use to evaluate my boats' actual stability,as built. I would have liked to ask the boats' designer
    No, there isn't....The designer could not tell you what the real, as built, stability is unless he or she measures the floatation and performs a inclining experiment. This information is plugged into a computer program (we used to do it by hand) to calculate righting arms at various heel angles. Designer's calculate preliminary stability based on some guess/calculation as to where VCG is and the finished boat's weight and trim, in reality it's always different. Specific weight (density) of materials has a lot to do with this, weight of wood varies with moisture content, glass sheathing weight varies with resin content, how much filler was used, how much was sanded off.....and on and on.......

    I'm not sure what good knowing your stability (in reality it would be the range of positive stability) will do you. As long as you (and I know you are wise enough to do this) avoid the perfect storm and don't run in the trough of monster surf, you'll be fine. Scientific curiosity is another thing and I would be happy to work through a stability project with you (for the edification of all reading this, not as a commercial enterprise). Suffice to say that your boat is initially stiff but also has a low angle of ultimate stability.

    I ask this since it has been observed throughout our engine breaking in period,whenever we would encounter wakes from other passing craft, how the boat pitches but hardly rolls as we encounter their wakes from various angles. I know I should not complain about not rolling, but it does feel odd and almost counter intuitive considering this boats narrow wl beam(7'11"),loa of 31' and a draft of 11 inches. Standing on the aft deck,while at the quay, I can get her to roll easily by rocking from side to side yet when underway,she hardly rolls.

    Another thing I've noticed, especially as we near the end of the engine breaking in period and get her running smoothly at her hull speed of aprox. 6.5 knots, is that she leans outward in a turn whenever we put the helm over too quickly.
    The lack of rolling was the designer's intention and indicates high initial stability. If you do Perie's rolling test you will find your roll period is very short. This is typical of flat bottomed boats and is nothing to worry about....it also indicates a vessel not intended for a North Atlantic crossing in winter.....

    The outward heeling in turns can be disconcerting for those used to vee bottoms that usually heel inward in a turn. As long as the heel is no more than 8-10 degrees I would not worry......Obviously it could be a problem if it was exaggerated by...say 20 passengers on the roof all running to the low side as you turned that way....the boat might indeed roll over....this is why we look at this sort of situation very carefully for passenger vessels......If you install an inclinometer close to the helm make a note of the heel angle in a turn and let me know what it is. It should vary with speed.
    ___________________________________
    Tad
    cogge ketch Blackfish
    cat ketch Ratty
    http://www.tadroberts.ca
    http://blog.tadroberts.ca/
    http://www.passagemakerlite.com

  32. #4967
    Join Date
    Jan 2003
    Location
    Southern Maine
    Posts
    21,009

    Default Re: Just fore the fun of it:)

    If your glass is half full and your cup runneth over, then you are inclined.

    Quote Originally Posted by P.L.Lenihan View Post
    Speaking of handrails or grabrails, I am wondering if there is a relatively easy or simple method I could use to evaluate my boats' actual stability,as built. I would have liked to ask the boats' designer,but he is no longer available for this earthbound clown.

    I ask this since it has been observed throughout our engine breaking in period,whenever we would encounter wakes from other passing craft, how the boat pitches but hardly rolls as we encounter their wakes from various angles. I know I should not complain about not rolling, but it does feel odd and almost counter intuitive considering this boats narrow wl beam(7'11"),loa of 31' and a draft of 11 inches. Standing on the aft deck,while at the quay, I can get her to roll easily by rocking from side to side yet when underway,she hardly rolls.

    Another thing I've noticed, especially as we near the end of the engine breaking in period and get her running smoothly at her hull speed of aprox. 6.5 knots, is that she leans outward in a turn whenever we put the helm over too quickly.

    Never having owned a power boat before and certainly nothing this size, leaves me like a new born pup at the races.I haven't a clue what is "normal" or not.

    Any thoughts, suggestions or ideas appreciated as always!

    Cheers!

    Peter

  33. #4968
    Join Date
    Mar 2001
    Location
    Nantucket, MA. USA
    Posts
    120

    Default Re: Just fore the fun of it:)

    Congradulations Peter on a job well done! She looks great. I'm happy to have a small part in your wonderful story.

  34. #4969
    Join Date
    Nov 2005
    Location
    Montreal
    Posts
    7,473

    Default Re: Just fore the fun of it:)

    Seeing how the last pictures delt fleetingly with an item destined to hang forever off the transom, how nice to come across a few pictures taken of an item destined to sit forever at the opposite end of the boat.A Samson post or mooring bit. Strange how an item easily done eons ago became forgotten until virtually the last minute.Surely the first warning signal of a disorganized and scattered mind!






    Here we see four pieces of sugar maple,7/8th" X 3 1/2" X 38" found laying around inside the bowshed and just on the verge of getting pre-wetted with some epoxy.






    And here are those same four pieces of Lombardi popular now with the six faying surfaces liberally soaked with clear epoxy ,prior to the application of the thickened epoxy.






    And voila!, the once four seperated bits of Ponderosa pine snugged up nicely in the thickened epoxy mixture.






    There is nothing like the sight of thickened epoxy squeezing out along every seam and joint to make a fella feel smug and manly about his mastery of laminating.
































    Nor too is there anything like the sight of seeing ones gf labouring up in the "heat zone" of the bowshed, on hands and knees, correcting and fussing over the finish, to make a fella feel cheap,lazy and mighty thirsty!



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

  35. #4970
    Join Date
    Nov 2005
    Location
    Montreal
    Posts
    7,473

    Default Re: Just fore the fun of it:)

    Quote Originally Posted by Peerie Maa View Post
    Try this:

    You can get her rolling by moving your weight back and forth across your cockpit. Then count and time 10, 20, or any easily divisible number of rolls (port to starboard and back is one roll). Do the sums and you have a measure of stability or as we "waste of times" call it GM. I'd be interested to see what you get.

    Hi Nick,

    Thank you for your suggestion! I'll give it a go in a few hours time when I am back on the boat. Just to be sure I understand this correctly: I am to get the boat rolling by rocking it side to side from the cockpit.Do I have to maintain this rolling while timing each roll or do I simply time each roll as they decay and the rolling completely stops? How deep of a roll should I induce or does this matter? Finally, say after 20 self induced rolls, with each roll period timed, am I to add these times together and divide it by? or do I just figure out the average for the 20 rolls?

    Thanks once again for dropping by and sharing your knowledge.



    Cheers!


    Peter
    Do it,do it,do it,do it,do it,do it,do it,now!
    J.Lennon

    This boat was built with ten thumbs.No fingers were harmed in anyway.

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