This is the sideways shift of the board on all tracks except being on the run. It depends on several factors.

  • Sailing speed
  • Angle of attack
  • Size and design features of fin
  • Fin profile
  • Fin torsion
  • Size and sheeting angle of sail
  • Wave conditions
  • Standard of sailor
  • Flow conditions in the sailing area

Figure 6: Drift

β drift angle