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  1. #31
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    May 2001
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    Default Re: Gen out, Engines out?

    Quote Originally Posted by MapisM View Post
    Yup, coming to think of it, now I remember.
    I believe that's allowed by your V-drive gearboxes (ZF550, possibly?), whose prop shaft connection is right under the engine jackshaft.
    AOTBE, this allows the prop shafts to pass through the hull more forward, compared to a system with separate gearbox+BPM V-drive like mine (and which Ferretti also used in several models),.
    Spot on P

    This is the V drive arrangement on my current F630 with ZF gearbox



    And here is the V drive arrangement on my old F46 with BPM gearbox



    I assume that ZF's gearbox with one shaft above the other is specifically designed to allow the prop shaft to exit the hull more forward and to reduce the prop shaft angle

  2. #32
    Join Date
    Mar 2002
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    Default Re: Gen out, Engines out?

    Quote Originally Posted by mikef View Post
    And here is the V drive arrangement on my old F46 with BPM gearbox
    Yup, that's similar to what I've got in the DP.

    Btw (not that this matters, but just for the records), the green box in the left bottom corner of your second pic is indeed a BPM V-drive, but very different from what you've got now in the F630, because the BPM unit is a pure V-drive, always on, and with no gearbox functionalities.
    In this setup, the gearbox (for engaging/disengaging and reversing) is attached to the engine, and it's the yellow box to which the jackshaft is connected.
    I don't know the type/brand, but I don't think it was supplied by BPM, anyhow. Fwiw, that's where I've got a ZF350 gearbox.

    Otoh, the white box on the right side of the first pic is a single unit gearbox+V drive, which incorporates a 10 degrees down-angle offset.
    Probably a ZF550-V, I would dare guessing.
    Do you possibly remember that? Just curious...

  3. #33
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    Default Re: Gen out, Engines out?

    Btw (not that this matters, but just for the records), the green box in the left bottom corner of your second pic is indeed a BPM V-drive, but very different from what you've got now in the F630, because the BPM unit is a pure V-drive, always on, and with no gearbox functionalities.
    In this setup, the gearbox (for engaging/disengaging and reversing) is attached to the engine, and it's the yellow box to which the jackshaft is connected.
    I don't know the type/brand, but I don't think it was supplied by BPM, anyhow. Fwiw, that's where I've got a ZF350 gearbox.
    Yes youre right. The BPM V drive is not a gearbox as such, it just reverses the drive whereas the ZF is a gearbox + reverses the drive


    Probably a ZF550-V, I would dare guessing.
    Do you possibly remember that? Just curious...
    Not quite right. The model is a ZF665V

  4. #34
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    Mar 2002
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    Default Re: Gen out, Engines out?

    Quote Originally Posted by mikef View Post
    Not quite right. The model is a ZF665V
    Well, my guess wasn't too far off, anyway.
    I don't remember to have heard before of the 665, but based on a quick specs comparison it looks like it's a beefed up 550, rated for higher power...
    550V vs. 665V
    Solid stuff, anyway - made in IT, afaik!

  5. #35
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    Default Re: Gen out, Engines out?

    Quote Originally Posted by MapisM View Post
    Well, my guess wasn't too far off, anyway.
    I don't remember to have heard before of the 665, but based on a quick specs comparison it looks like it's a beefed up 550, rated for higher power...
    550V vs. 665V
    Solid stuff, anyway - made in IT, afaik!
    I didnt know the ZF boxes were made in Italy. I better start offering up prayers for the continuing reliability of my ZF boxes then

  6. #36
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    Mar 2002
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    Default Re: Gen out, Engines out?

    Yup, near Padova.
    I don't think you have reasons to be worried, though.
    If those folks in Friedrichshafen HQs trust them, we also can, I reckon.

  7. #37
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    May 2001
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    Default Re: Gen out, Engines out?

    Quote Originally Posted by MapisM View Post
    Yup, near Padova.
    I don't think you have reasons to be worried, though.
    If those folks in Friedrichshafen HQs trust them, we also can, I reckon.
    Padova thats OK. I feared it might have been made down south in the African part of Italy!

  8. #38
    Join Date
    Mar 2002
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    Default Re: Gen out, Engines out?

    LOL, do you mean like those Itama thingies, for instance...?

  9. #39
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    May 2001
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    Default Re: Gen out, Engines out?

    Quote Originally Posted by MapisM View Post
    LOL, do you mean like those Itama thingies, for instance...?
    Have I said the wrong thing now?

  10. #40
    Join Date
    Mar 2002
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    Default Re: Gen out, Engines out?

    In fairness, Rome still ain't so African, after all.
    And their nautical heritage is remarkable, including Canados, among other reputable builders.
    Aicon, on the other hand.....

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