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Maritime Technology in the Indian Ocean

Maritime Technology in the Indian Ocean. Chinese Junks Hull Design Sail Design Navigation. http://en.wikipedia.org/wiki/Indian_Ocean. Chinese Junks. Very unique in the Indian Ocean Basin Flat bottomed hull evolved from the rounded hulls Battened sails

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Maritime Technology in the Indian Ocean

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  1. Maritime Technology in the Indian Ocean • Chinese Junks • Hull Design • Sail Design • Navigation http://en.wikipedia.org/wiki/Indian_Ocean

  2. Chinese Junks • Very unique in the Indian Ocean Basin • Flat bottomed hull evolved from the rounded hulls • Battened sails • Overlapping planks increased strength and allowed for beamier boats • Wanshichuan, bianhechuan, fuchuan • Multiple sails, multiple rudders,

  3. Rigging • Cotton sails • Square rigged sails -> lateen/ settee rigs http://nabataea.net/sailing.html

  4. Hull Design • Wooden planks sewn together • No iron nails until major Portuguese presence • Square transom • Steering oars -> axial rudders • Fish oil varnish on hull

  5. Navigation • Monsoon winds • Landmark navigation (watercolor, fauna, etc.) • Determining latitude- cross staff-> charts • Latitude sailing • Compass http://www.thepirateking.com/historical/cross_staff.htm

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