Monday, 22 October 2012

Zen Again's Sail Indonesia 2012 Technical Summary

Hi everyone,
It's time for some technical statistics on our Sail Indonesia 2012 adventure.  The statistics include our participation in the Darwin to Dili Rally as well as Sail Indonesia.  We sailed the western route of Sail Indonesia, entering Indonesia at Kupang and exiting at Nongsa Point.

Zen Again was one of the smallest yachts on the rally this year.  She is a 34' (10.4m) cutter-rigged cruiser/racer monohull displacing about 6500kg.  She has 200 litre freshwater tanks plus four 20 litre jerry cans; and 140 litre diesel tanks plus five 20 litre jerry cans.  We have no water maker.


  • Duration = 98 days
  • Distance Logged = 2541nm
  • Sea Time = 528 hours
  • Average Speed = 4.8 knots
  • Average Distance = 26 nm/day
  • Engine Hours = 331 hours
  • Fuel Consumed = 560 litres
  • Fuel Consumption Rate = 1.7 litres/hour (20 year old Yanmar 3GM30F)
  • Water Consumed = 910 litres
  • Water Consumption Rate = 5 litres/person/day (approx)

What Worked:

  • Garmin BlueChart G2 electronic charts (better detail and fewer offsets than other brands)
  • GE2KAP translation of GoogleEarth imagery for viewing in OpenCPN chartplotter - brilliant!
  • AIS receiver
  • Good autopilot
  • Reaching sheets (ie separate sheet run to block on toe rail)
  • Boom brake (ours was a A$40 mountaineering "figure of eight")
  • Quiet cabin fans (ours are Caframo)
  • Soda water maker (ours is a SodaStream)
  • Waterproof video camera (ours is an Oregon Scientific ATC9K)
  • Jiggler hoses for transferring fuel and water from jerries to main tanks (easy to use at sea)
  • Scrubbing brushes for regular hull cleaning

What Broke:

  • Engine Freshwater Pump failed near Dili (getting replacement was quick but costly)
  • Engine Freshwater Pump / Alternator V-Belt failed enroute Belitung-Mesanak (spare fitted)
  • Two mainsail luff slug webbings replaced - one pre-emptively replaced, one failed at sea
  • One of our two freshwater bladders developed a leak near Dili (removed and not replaced)

Spares We Used:

  • 9 litres of oil, including 3 litres for two oil changes and 6 litres of topping up
  • 2.7 litres of coolant (when replacing freshwater pump)
  • 2 oil filters
  • 2 primary fuel filters
  • 1 secondary fuel filter
  • Webbing straps and whipping twine

What Wore:

  • Boom brake attachment chafed boom vang attachment, so replaced with webbing
  • Headsail sheets now look quite old and worn
  • Anchor chain marks abraded away

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