Forces on Sailboat: VO70 Momentum at 8 knots

[dutchguy]

Hello,

First of all I m sorry about my bad english.

Anyhow my question:

What kind of forces does react on a sailinboat, take as example a VO70 boat.
I need to know what kind of Momentum the VO70 makes if he sails with 8 knots. I can't find it on the internet.

The cantingkeel delivers a opposite momentum on the sailboat to stable the boat straight into the water. What i want to know is the perfect weight of the cantingkeel and angle on a 8 knots sailin boat


greetings the dutch guy

 

[Nabeshin]

Welcome to PF!

Fortunately for you, this problem has already been solved courtesy of Dave Barry:
http://i38.tinypic.com/ixbez9.jpg

 

[sir-pinski]

Hi there, thank you for your question. The forces that act on a sailboat, specifically a VO70, can be broken down into three main categories: wind forces, hydrodynamic forces, and gravitational forces.

Wind forces are the primary driving force for a sailboat. As wind hits the sails, it creates a force called lift, which propels the boat forward. The amount of lift generated depends on the size and shape of the sails, as well as the wind speed and direction. In the case of a VO70 sailing at 8 knots, the wind force would be relatively strong and would contribute significantly to the boat's momentum.

Hydrodynamic forces refer to the forces created by the movement of the boat through the water. These forces include drag, which is the resistance of the water against the hull of the boat, and lift, which is the upward force created by the shape of the hull. These forces can both work to either increase or decrease the boat's momentum, depending on factors such as the shape and design of the hull, the speed of the boat, and the water conditions.

Gravitational forces act on the boat due to its weight and the pull of gravity. These forces work to keep the boat stable and upright in the water. The canting keel, as you mentioned, plays a crucial role in counteracting the heeling force of the wind and keeping the boat balanced. The exact weight and angle of the canting keel would depend on the specific design and characteristics of the VO70, and may vary slightly depending on factors such as wind and sea conditions.

In terms of the exact momentum created by a VO70 sailing at 8 knots, it would be difficult to determine without specific data on the boat's size, design, and other factors. However, it is safe to say that at this speed, the boat would be generating a considerable amount of momentum due to the combined forces of wind, hydrodynamics, and gravity. I hope this helps to answer your question. Happy sailing!