Philosophy of redundancy

If cruising in Pacific waters outside the hurricane season for up to 6 months, a yacht has to be self supporting and resilient to all conditions. Therefore on board of Alexandra none of the vital systems can be a ‘single point of failure’. This means there is always at least one backup/secondary system available when the main/primary system fails.

Multiple systems are:

  • 4 independent GPS receivers (Leica, Thrane/Thrane, Magellan Meridian and Pioneer)
  • 2 fully independent ways of position information (GPS, Sextant)
  • 3 compasses (B&G halcyon, Navico, Sestrel Moore)
  • 4 ways of weather information (Inmarsat-C, Pactor SSB, weather fax, voice SSB)
  • 2 barometers (1 barograph, 1 clock
  • 3 brass shipclocks
  • 3 VHF transceivers (Skanti, Kenwood, handheld Furuno)
  • 3 SSB voice receivers (Loewe, Debeg, Lokata)
  • 3 laptops for navigation (2 with TRANSAS and CMAP) (note: only 1 laptop included in sale)
  • 2 ways of e-mail connection on high seas (Inmarsat-C, Pactor SSB)
  • 4 AM/FM receivers (Loewe, 2x Pioneer, Lokata)
  • 2 satelite emergency beacons (Inmarsat-C, 406 EPIRB)
  • 2 ways of emergency flares (Flaregun, handheld flares)
  • 4 diffent bilgepumps (Automatic electric, manual, high volume Jabsco, bailing buckets)
  • 2 autopilots (B&G Helmstar, Navico WP5000)
  • 2 speed sensors (B&G impellor, B&G sonic speed)
  • 3 independent depth sounders (B&G Hydra330, Interphase color sounder, leadline)
  • manual steering by steering wheel, emergency tiller or Helmstar740 power steering
  • 5 ways of battery charging (Yanmar alternators, 2x 220V chargers, solar power, towing generator)
  • multiple ways of starting Yanmar and Westerbeke (emergency parallel switch, startercables)
  • 2 fridges (75, 90 ltr) and a separate 75 ltr freezer
  • 2 heads (electric and manual)
  • 3 showers (each with mixing tap)
  • 5 ways of cooking (220V ceramic, LPG burners, microwave, fan forced oven, LPG barbeque)
  • 2 aluminium 6 kg LPG tanks
  • Hot water cylinder (60 ltr) is heated either by 220V power and/or main engine coolant
  • 3 separate water tanks (180, 170, 220 liters)
  • 2 ways of  fresh water replenishment (desalinator, water catchments)
  • 2 separate dieselfuel tanks (2x 350 liters)
  • manual and automatic electric fuel transferpump to refill the fuel daytank
  • 2 separate 150 ltr blackwater tanks (each with macerator pump and crossover connection)
  • 3 anchors (75 lbs CQR, 15 lbs Fortress, Danfort)
  • 2 control units for anchorwinch (switchable forward/aft)
  • 2 ways of electric hoisting of mainsail (mastwinch motor, anchorwinch capstan via snapblock)
  • 3 ways of closing and locking companion way (closed hatch, plexiglas, ventilation hatch)
  • 2 ways of MOB signalling (float with flag, dan buoy with automatic light)

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