BATOPERF considers the equilibrium of the forces acting on a boat when sailing in the thrust and in the canoe body and appendages side force directions. A transverse plane force moment equilibrium is also considered solving for three principal unknowns: boat speed, leeway and heel.
In this paper an overall description will be given of the fundamental solving principles of BA TOPERF and its force models.
Finally a comparison will be made against the IMS VPP in the context of the importance of accurately predicting boat speeds when designing an IMS boat.
Keywords:
equilibrium,
side force,
ims vpp,
calculation,
resistance,
residuary resistance,
yacht,
hull,
prismatic hull,
prediction
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1997. The Society of Naval Architects and Marine Engineers
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