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Lengthened 1990 Hakvoort LRC; opinions please?

Discussion in 'Hakvoort Yacht' started by hrosetti, Jun 23, 2014.

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  1. hrosetti

    hrosetti New Member

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  2. Old Phart

    Old Phart Senior Member

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    I dunno
  3. olderboater

    olderboater Senior Member

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    I'm normally not a big fan of boats that have been lengthened and in the case of this boat 8' was added in 1996. Now the fact that the builder did it relieves some of my concern. Still I'd want to put it through a good tough sea trial.
  4. Capt J

    Capt J Senior Member

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    I've never seen strength or the quality of the bond of the extension as ever a problem. The ride and handling are always the problem.....how much it detracts, well it depends on the boat and fuel load/distribution makes a huge difference also
  5. Old Phart

    Old Phart Senior Member

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    I dunno
    1996 was a few days ago - time tested. ;)
  6. rmjranch

    rmjranch Member

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    Age

    I have never seen the boat, but from what I understand, she need a complete refit, read VERY expensive. A new Dutch built boat, in this size range, is 7 to 8 million dollars, at least. You probably will need to spend several million to bring her back. Again, I have NOT seen the boat, but that is a general idea of the costs. You will then have a ship, not a boat or yacht. With all due respect to US, Taiwan, or China built boats, these are a different product. Again, since I have not seen the boat, it not might not pay to put this much money into this particular boat. Note, that these ships are far more complicated then most yachts, read more work, BUT you have a real ship, that will go anywhere. Good luck and happy cruising!!!! Also nice to have a boat that will be the only one when you enter a marina, not the same as 20 others.
  7. RER

    RER Senior Member

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    I've had personal experience with some that were better boats after an extension.
  8. hrosetti

    hrosetti New Member

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    Where did you get the information about the boat needing a complete refit? I would love to read it, I would appreciate if you would provide the source. It will definitely help me to make a decision.
  9. Danvilletim

    Danvilletim Senior Member

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    Only two staterooms.... Not much room for two crew...no additional room for friends
  10. K1W1

    K1W1 Senior Member

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    Hi,

    Contact the broker and ask if the photos are recent before wasting too much time on a false lead.
  11. hrosetti

    hrosetti New Member

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    I already did that, he claims less than a year old.
  12. K1W1

    K1W1 Senior Member

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    Hi,

    If that is really the case a first impression of the interior would not lead me to believe that she needs that part refitted if you can deal with what's there already in way of furniture colours etc.

    I saw in the specs she has the venerable 855 cu in Cummins, they were the basis of many thousands of truck and other offroad vehicles and had a bulletproof reputation when I was working as a mechanic man moons ago.

    Given that they have a reputed 12000 hrs these might be in need of some refreshing and can if they have been neglected suffer badly from damage to the block in the area where the liner o rings are located.

    If you are serious get her surveyed and there is a well known Cummins ace on the west coast (who blows his own trumpet too much to be mentioned here by name) who could no doubt give you the word on the engines.
  13. hrosetti

    hrosetti New Member

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    Thanks for all the input and advice, especially to rmjranch for the PMs and phone calls. After viewing the yacht the other day I have decided to move on, she is mostly original and extremely shabby. I have decided it would be more of a project then I care to take on so am passing on this one and shall keep on looking.
  14. 993RSR

    993RSR Senior Member

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    The listing says she was lengthened amidships not extended. Wow that had to be a huge expensive job.
    4 stateroom boat. Master, VIP and two upper and lower berth cabins.
    Sounds like a sweet package if she is healthy.
  15. K1W1

    K1W1 Senior Member

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    Hi,

    Look at it this way, if its chopped in front of the ER Bulkhead and a bit added there is a lot less to do than extending it then moving the steering gear and extending the shafts and its all living space for the Owner
  16. 993RSR

    993RSR Senior Member

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    I am a broker. Looked at, operated and/ or sold many extended boats. Never have I found the hardware moved as a result of the extension. My experience is mostly Hatteras where a 70 MY would have a 6-8' Extension. They always run faster and overall better with the exception of off or down wind. In that case the extension is a pry bar lifting the back of the boat with every swell.
    I was told 10% is OK on an extension before the hull gets really squirrely.
    Anyway back to this boat adding a center section is no question the best approach.
  17. Capt J

    Capt J Senior Member

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    Not entirely true in the real world. 10% of the boats length is the common number.....Although I ran a Broward that was extended 3 different times by 3 different owners, started life as an 86' and was a 103'. I have run more extended Hatteras than I could care to list and to be honest relatively few that were never extended as well as many other brands....... 1995<.

    I have never seen the running gear moved on any of them either. However 95% of the time they do not add speed, slow the boat down. You're gaining a lot of weight and surface area (drag) even though you have more flat planing surface, your using the same HP to push the boat. They'll have a faster hull speed.

    The biggest problem with an extension (non factory) is usually the extension is a cockpit for a MY that never was built with one, so it adds a lot of Bouyancy and moves the COG really far foward. They usually counter this with an additional fuel tank and a water tank in the cockpit. Well 2 things that are always changing weight as you use the boat. It's a very fine balance between having the COG just right, too far foward or too far aft. Too far aft and the boat will usually handle good in any sea direction but it won't get on plane as well and lose speed. Just right is just right but it's very hard to maintain that balance and 30 gallons +/- back there can change the speed (lose/gain a few knots). For example if someone takes a shower while you're running the boat may lose 2 or so knots until you change it by drawing fuel from somewhere else. The prybar effect only happens when the stern is too light and COG too far foward......In a relatively small following sea I've seen one swing 90 degrees while on plane and on autopilot. In a Calm sea on some boats keeping the stern light may pickup speed until you get it too light. But let me tell you that I have never seen an extension improve the handling of a boat.

    Exceptions would be 2 boats I've known of. But 1 was a factory extension of the mold.....The 86' to 109' Johnson.....The 86' squats bow high and won't get on plane and only cruises at 14 knots with 12v2000's. The 109' with 16v2000's will get solidly on plane and run a flatish attitude at 20-21 knots at 80% load. The only other boat I know of started life as a 45' Hatteras SF that was extended to I think 53' call the shark, they also put 1050hp Man's in the boat.....it cruised close to 35 knots, when it used to cruise at 23 knots.....But again it also gained close to 1000HP.
  18. Marmot

    Marmot Senior Member

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    That is a neat trick ... adding weight aft moves the CG forward?

    How does that work?
  19. YachtForums

    YachtForums Administrator

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    Your splitting hairs. The added buoyancy of an extension can be greater than its own weight, therefore moving the center of floatation forward. If it's a planing hull, this can induce trim, which has the effect of moving the center of pressure forward.
  20. HTMO9

    HTMO9 Senior Member

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    Archimedes principle

    Just add more (underwater)volume than weight :D.

    apparent immersed weight = weight of object - weight of displaced fluid
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