GP14 Sailing Forums Forum Mainsheet block

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    • #21459
      Alex Reynolds
      Participant

      What sheave size would people recommend for a new centreboard-case mounted mainsheet ratchet block?  Harken alternatives seem to be 57mm or 75mm.  And what manufacturer do you prefer (Harken/ Selden/ Allen etc)?

      Thanks in advance, Alex

    • #21460
      Oliver Shaw
      Moderator

      For what it is worth,  it is getting on for 15 years since I last had centre sheeting,  and that was a free-running block with a jammer,  rather than a ratchet block.   But 75 mm is 3 inches in old money,  which seems fairly enormous;   I would expect 57 mm to be more usual,  and just looking at 57 mm on a ruler it seems compatible with the sort of size that I remember.

      Arguably the rope will run more freely round the larger sheave,  but I was never conscious of any impediment with the one I had.

       

      Oliver

    • #21461
      Alex Reynolds
      Participant

      Many thanks Oliver.  Will go for the 57mm!

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