Aerodynamic Fundamentals Paul Bogataj

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Aerodynamic Fundamentals Paul Bogataj
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Computed pressure differential
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Spanload

• Etchells Star

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Sectional Loading

• Etchells Star

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Forward Force
Etchells 8 knots
Star 9 knots
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Side Force
Etchells 8 knots
Star 9 knots
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Camber Comparison
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Pressure Distributionalpha 5.5 degrees

• Forward Aft

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Pressure Distributionalpha 7.5 degrees

• Forward Aft

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Summary

• Aerodynamics is about generating the best
  possible information to understand the flow
  around an object
• and
• then implementing the optimum shape to
  efficiently deliver the desired force at the
  correct conditions.