Resistance
The resistance, or drag, is a physical term for a force wanting to counteract the motion of a moving object. In planing boats there are four main resistance components
- Frictional (viscous) resistance from wetted surface area
- Induced resistance, the cost of lifting the boat out of the water
- Aerodynamic resistance, air resistance on the hull, deck, superstructure etc
- Appendage resistance, form and frictional resistance on sterndrives, gearhouses, rudders, etc