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1991 45" Viking aft rail question

Discussion in 'Viking Yacht' started by vds1968, Jan 3, 2021.

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  1. vds1968

    vds1968 New Member

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    I have 1991 45' Viking with cummins qsm 11 i am thinking about installing lift rails/ Is it worth it?
  2. vds1968

    vds1968 New Member

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    Sorry Lift rails
  3. Capt J

    Capt J Senior Member

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    I ran one 45' with them, had 6v71's and ran well. I do not know if the lift rails were the reason why......
  4. NYCAP123

    NYCAP123 Senior Member

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    What are "lift rails"?
  5. Capt J

    Capt J Senior Member

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    Like a spray rail, but they're alongside the hull on the edge where the hull meets the hull side. Kind of concaves downward a bit. Some manufacturers added them at the factory to fix a hull design that didn't run as stable as expected at cruise speeds.

    Like this:
    48rollchock-jpg.77029 (800×600) (yachtforums.com)
  6. NYCAP123

    NYCAP123 Senior Member

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    Oh ok. The way it was phrased I thought the OP was referring to something with the motor. Spray rails are common, but I can't see them having much effect on lift, no matter how angled, over what the trim tabs and chines designed for the hull do.
  7. RER

    RER Senior Member

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    lol ...that's my photo of a 48' sportfisher hull that had been extended 4' from an original 44' a 15' hull. And yes it did help with stability and lift in this case.
  8. Capt J

    Capt J Senior Member

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    I notice that they help with stability and lift also......
  9. bayoubud

    bayoubud Senior Member

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    I owned a 1989 Viking, what is happening t0 make you want to add lift rails.
  10. vds1968

    vds1968 New Member

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    Sorry lost user name and passwords I’m back now
    So I made and installed lift rails well worth all the effort
    Boat is much drier picked up a little speed and the engine load is less
    Thanks
    FL000 likes this.