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Thread: Shaft drive catamarans (35-42') and questions

  1. #1
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    Default Shaft drive catamarans (35-42') and questions

    This is a two part question:

    Would like a list of cats in the 35-42' range that were factory shaft drive.

    I know of the Lagoon 35ccc

    Also, can just about any sail drive cat be converted to shaft drive?

    Thanks

  2. #2
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    Default Re: Shaft drive catamarans (35-42') and questions

    conversions: most cant be converted without other trouble

  3. #3

    Default Re: Shaft drive catamarans (35-42') and questions

    Our friend has a Leopard 38', I think it's 2004? with shaft drive, Westerbeke diesels. This may vary within the Leopard cats

  4. #4
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    Default Re: Shaft drive catamarans (35-42') and questions

    So we have two cats:

    Lagoon 35ccc
    Leopard 38 (unsure years)

    Thanks

  5. #5
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    Default Re: Shaft drive catamarans (35-42') and questions

    I think PDQ 32 & 36 LRC models do

    pretty sure Sunstar 32 does

    AMI Renaissance 320 does

    FP Tobago 35 does not

    I think TPI Lagoon 37 does -- don't know about French built L37s
    Last edited by searenitysail; 13th August 2013 at 09:46 PM.
    "People sail for fun and no one has yet convinced me that it's more fun to go slow than it is to go fast." -- Dick Newick

  6. #6
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    Default Re: Shaft drive catamarans (35-42') and questions

    Add the Lagoon TPI 42 and 37. Also a few 410's came with shaft drive..Year 2000 Leopard 45's have shaft drive, maybe other years and models too...

  7. #7
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    Default Re: Shaft drive catamarans (35-42') and questions

    Thanks all

  8. #8
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    Default Re: Shaft drive catamarans (35-42') and questions

    Privilege 39 was available with either shaft or saildrive.

    Don't expect to get an exhaustive list here though - just a very small sampling.

  9. #9
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    Default Re: Shaft drive catamarans (35-42') and questions

    Thanks Scott...just thought I'd ask, so I could look on yacht world for those models. Also why I asked if a sail drive vessel could be converted without huge issues.

  10. #10
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    Default Re: Shaft drive catamarans (35-42') and questions

    There's a Privilege 39 on Yachtworld that has already been converted to electric drive. Nice looking boat.

  11. #11
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    Default Re: Shaft drive catamarans (35-42') and questions

    IslandPacket cat 35, though i would not recommend them.

  12. #12
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    Default Re: Shaft drive catamarans (35-42') and questions

    Quote Originally Posted by georgetheleo View Post
    conversions: most cant be converted without other trouble
    With the engine placed well aft as it usually is with a sail drive, your alternative is to turn the engine around, aft end forward, and install a v-drive. The shaft ends up under the engine, and it can be difficult to access the stuffing box or dripless alternative to a stuffing box. I prefer a stuffing box with teflon packing to the dripless alternative, which are great unless they fail. If you're talking about an existing boat conversion instead of a design alternative, you're obviously in for some real expense and effort.
    Currently concentrating on http://earthnurture.com .

  13. #13

    Default Re: Shaft drive catamarans (35-42') and questions

    Quote Originally Posted by BigCat View Post
    With the engine placed well aft as it usually is with a sail drive, your alternative is to turn the engine around, aft end forward, and install a v-drive. The shaft ends up under the engine, and it can be difficult to access the stuffing box or dripless alternative to a stuffing box. I prefer a stuffing box with teflon packing to the dripless alternative, which are great unless they fail. If you're talking about an existing boat conversion instead of a design alternative, you're obviously in for some real expense and effort.
    It is not difficult to change from SD to Shafts or visa versa, the main difficulty is space as you describe and log installation. Also the rocker shape typical of catamaran hulls does not lend itself to fitting a vee drive without restricting the size of propeller or imposing a severe angle on the prop shaft itself.

    We previously had shaft drives as you describe with engine reversed but replaced these with SD's essentially because the propeller size could not be increased. The SD's are a poor substitute for shafts in terms of maintenance and cost, but the propeller angle and sizing are much more efficient from propulsion point of view.

    Going from shafts to SD is easy given that they come with pre-constructed beds. Going the other way is more difficult because of the size of the beds that have to be removed the necessity to build new custom beds and most importantly fit and align the log for the shaft.

    This is why boat builders love SD's there is very little thinking involved. It is just a shame that the manufacturers reap their profits from replacement seals which is a particular problem on catamarans.

  14. #14
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    Default Re: Shaft drive catamarans (35-42') and questions

    If you can find one the PDQ Antares 42 is a great shaft drive cat.
    The older Leopard 42/43's (pre 2007) are shaft drive.

  15. #15
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    Default Re: Shaft drive catamarans (35-42') and questions

    Our '99 Privilege 42 is shaft drive but, I think it was optional, some are SD.

  16. #16

    Default Re: Shaft drive catamarans (35-42') and questions

    You guys might want to check this out ttps://twitter.com/feigincraig

  17. #17
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    Default Re: Shaft drive catamarans (35-42') and questions

    Lagoon 42 TPI
    Lagoon 37 TPI
    Solaris 42
    Privilege 42 (some)
    Leopard 42
    Leopard 38

  18. #18
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    Default Re: Shaft drive catamarans (35-42') and questions

    Leopard 38's were shaft drive?

  19. #19
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    Default Re: Shaft drive catamarans (35-42') and questions

    Yep, 38,42,43,45,47 prior to 2008 were all shaft drive.

  20. #20
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    Default Re: Shaft drive catamarans (35-42') and questions

    Our Solaris Sunstar 36 is shaft drive with Yanmar 3GM30Fs.
    Sail Fast Live Slow

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