Cummins Marine Diesel Repower Specialists › Forums › Boats & Repowers › Bertram 28 new power prop sizing

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  • October 24, 2022 at 8:17 pm #138157

    Fernando Perez
    Participant
    Vessel Name: Rehab
    Engines: QSB 5.9
    Location: PR
    Country: USA

    Hi, a friend of mine is needing popellers size  recommendations for Bertram 28 1972 with Cummins 4bta 250hpRpm 600 to 3000Shaft 1-3/8 Wating on trans ratio   any one with similar set up?    

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  • October 25, 2022 at 5:11 am #138161

    Fernando Perez
    Participant
    Vessel Name: Rehab
    Engines: QSB 5.9
    Location: PR
    Country: USA

    Ratio is 1.56:1

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