Pacific Proa: Double-ended, bi-directional
sailing multihull with

main hull to leeward (75% displacement)
and small hull to weather (25% displacement)
Goes opposite direction when tacking!
    Click for rotating view! (253K)
Click for rotating view! (253K)     Click any image for
rotating, 360 ° view! (253K)
Click for rotating view! (253K)
 
Click for rotating view! (253K)
  large hull small hull
Length 69 feet 38 feet
Displacement 5.4 tons 1.8 tons
Beam 4.0' 2.5'
Draft 2.0' 1.5'
D/L Ratio 18 at rest,
22 flying ama
33 at rest,
26 at 75% RM,
17 at 50% RM

7 to 9 tons total, 34' beam overall
Scalable Pacific proa design!
Feet Meters Displacement     Currently designing large
multihulls inspired by the
Flying Proas of Micronesia.

69
90
120
21
26
36
7-9 tons
15+ tons
22+ tons!?
Balanced Rotating Rig
Steering Details!
Click for rotating view! (253K)
Click image for larger view
Extensive engineering analysis of stability, drag, weight and load capacity, rig, rudders and steering, etc.,
Click image for larger view of sketch
Web site by wingo.com
Joseph Oster
www.josephoster.com -
Northern California
Joseph sailing!
Versions of this design: All 3D models created by Joseph Oster using MultiSurf by AeroHydro





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Proa Links!