Topic |
Site Pages |
How aerofoils work
Where lift comes from |
Engineering formula for lift
Momentum theory of lift
Lifting line theory of lift
Circulation theory of lift
Circulation, Planform, Bubbles |
How fins and sails work
Aspect ratio, Wash,
Planform & Vortices,
Boundary layer,
Reynolds number,
Sheeting, Twist, Slot |
Downwash
Sail section lift
Slot Effect
Wind tunnel (2) Sheeting angles |
How a yacht works
Points of sailing,
Downwind sailing and hull speed,
Sailing on the wind,
Lift & drag,
Apparent wind |
Apparent Wind
Wind Gradient
Twist due to wind gradient
Big boat instrumentation
Wind tunnel Drive vs heel
Wind tunnel Goosewinged vs same gybe
The course theorem, pointing,
and drag angles |
Appendage design
Fin & rudder size,
Fin & rudder planforms,
Fin sections,
Rudder
sections,
Rudder balance |
Bulb size & shape
Bulb cant
Marko's bulb calculator
Foil planforms
Fin area
Fin Position
Foil Sections and forces
Oval Bulb |
Hull design
Froude number,
Surface friction,
Wave drag,
Hull lines |
Hull design with arcs
Metacentric moments
Boundary layer
Flow around a hull
Flow around a hull 2
Permitted roughness
Turbulators |
Sails and rigging design
Shrouds, Jumpers, Stays,
Spreaders,
Mast, Sail-mast interaction
Jibstay sag, Windage,
Gooseneck geometry,
Topping lift,
Sail camber
Gap between jib foot and deck |
Sail shape
Sail draft
2D Entry & Exit Angles
Gap between sail and mast
Sail Twist
Twist & downwash
Twist measurement
Twist measurement (part 2)
Wind tunnel (3) Twist
Jib foot gap to deck |
The boat as a whole
Balance, Stability,
Environment, Trade-offs,
Class rule effects |
Balance due to hull shape
Rig tune and snap weather helm
Tuning weather helm
Simple VPP
Heel apparatus for "A" |
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