Sunday, 28 November 2010

Running Rigging

Went up today and measured Robinetta's running rigging. Its over 10 years old and showing chafe in a lot of places.

There is some 8 mm buff polyester (must be polyester, it sinks):
  • topsail downhaul
    • from a ring on the top of the throat of the gaff to a cleat on the mast. 20'
  • shroud tensioners
    • four off 8' (actually 7' + manrope knot)
  • Total
    • 52' = 16m
There is some 10 mm  buff polypropelene (it floats! - Hempex or Hardy Hemp):
  • topsail halyard
    • runs through sheave in mast. 730 cm from sheave to bottom of cleat so 14.6 m
  • back stays
    • 16'6" plus loop round blocks and eye splice each say 40' or 12m
  • topping lifts
    • hypotenuse of luff and foot of mainsail + tensioning length plus loops round boom + splicing length
    • hard to measure without taking the sail cover off, but in good condition – not necessary to replace
  • Total
    • 14.6 m + 12 m = 26.6 m
    • We could buy 30m of this or just do the back stays and buy 15 m. The topsail halyard might be better in Dynema so we can use it to go up the mast safely.
There is a lot of buff polypropylene, probably 12mm but could be 14 mm:
  • Jib halyard
    • purchase on deck with knot to block dependent from wire rope and back to cleat on mast. 2x23'=46', say 50'
  • peak halyard
    • eye splice on horse to block on mast 21'. up, down and back to cockpit 52'
  • throat halyard
    • eye splice on horse to block on mast 20'. up, down and back to cockpit 50'
  • main sheet
    • 17 m
  • Total
    • 64 m, buy 70m
There is some 12 mm Braid (not measured):
  • jib sheet
And some 6 mm braid (not measured):
  • roller furling line
  • staysail sheet
  • topsail sheet

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