Here are some more information for Bottom Base:

Surfboard fins are very important to surfboard design and surfing. Similar to the rudder of a boat, surf fins work to stabilize and steer a surfboard and prevent surfers from spinning in circles while riding a wave. With them, a surfboard can glide in a controlled path.

Surfboard fins come in a variety of shapes, sizes, and even flexibility, that suits every surfers surfing preferences. However, one thing is common to all of them, they all have a curved appearance. These things may sound simple to you, but in reality, their science and design is quite complex.

Much like surfboards, surf fins have undergone a series of evolutionary changes since their invention. Early surfboards did not even have fins. Surfers used to drag one foot in the water to control their boards. However, an important breakthrough took place in 1935, when Tom Blake introduced his "Nub Keel Fin". Soon after, almost every surfboard was being shaped with fins fixed to the bottom of the board. Moreover, designs were not given due importance until the 1990s. Today, they have become the number 1 surfboard accessory with many manufacturers, such as FCS and Future Fins, leading the way.

Basically, there are only two types of fins used in surfboards, the glass-on and the removable types. The only difference between the two is that removable types can be taken off the bottom of the surfboard at any time and can be replaced with a different set. Glass-on types on the other hand are fixed and cannot be detached.

An adaptation to these two types is soft fins, most commonly used on rental boards. This is because they are safer for beginners to use as they do not cut or injury the body. Unlike fiberglass glass-on and removable types, soft fins are known not to perform as well with most professional surfers refusing to ride them.

The performance properties of surfboard fins are dependent on their design and specific measurements. Some basic parts of a surfboard fin include its depth, base length and rake.

Depth

The depth of a surfboard fin is its measurement from the base of the surfboard to its tip. It determines how deep it goes into the water. This feature is what holds the surfboard to the water when it moves, pivots or turns, known as traction or hold. The more the depth is, the more controllable the surfboard is, most importantly when turning.

Base Length

The base of a surfboard fin is the part that connects with the face of the bottom of a surfboard. It is also the widest part. This part determines how much speed and drive the fin can contribute to the board. The longer the base length is, the more speed and drive the board will have. Thus, if you need more speed, choose fins with long base lengths. They are very effective.

Rake

The Rake, also known as "sweep", is the angle created between the back part of the base (the part of the base closest to the tail of your surfboard) and the tip of the fin's offset and has nothing to do with rake we commonly use in our gardens. The smaller the angle of the rake, the more drive will it provide, but the surfboard becomes more difficult to maneuver. Consequently, when the rake angle is greater, the board can make tighter turns with a sacrifice in speed.

The Fin Setups and their Uses

Now let's look at the variety of fin setups you can choose from.

Single fin is the original setup and is commonly used in longboards. Compared to other setups, single fins are usually wider and longer making the board more stable and controllable even with just one fin.

Twin fin setup is composed of two parallel fins attached to the bottom of the surfboard. With this, the board is faster and easier to turn. Twin setup fins are usually identical in all dimensions.

Thruster setup is the most common of all. It is a three-fin setup and is also composed of three identical fins. In this setup, 2 fins are placed parallel to each other while the third one is placed in the middle, slightly further back towards the tail of the board. This is the setup found on most high performance shortboards.

2+1 setup is also composed of 3 fins with two fins positioned parallel to each other, while the third one is adjustable and is larger than the other two.

Quad setup is composed of four fins, with the 2 attached to each side of the surfboard bottom. This setup is commonly used in shortboards meant for surfing small, powerless waves. This is due to the fact that this setup provides more speed as the absence of a middle fin reduces drag.

With such a wide range of choices it is often quite difficult to choose the right surfboard fins. However with the right amount of surfboard fin design knowledge and a bit of patience you will find the surf fins that are meant for you!

Discover the Entrepreneur and His Home Based Business Environment

Everywhere you turn nowadays, you always hear about venturing into Home Based Business entrepreneurship. But what is Home Based Business entrepreneurship exactly? It is actually defined as the process wherein a group or an individual makes an effort to pursue Home Based Business opportunities to satisfy needs and wants through uniqueness and innovation. Some people have the misconception that Home Based Business entrepreneurs are gamblers in the sense that they take risks and invest in Home Based Business industries that have no record of success. However, the truth is, these Home Based Business entrepreneurs take calculated risks that have the potential to provide them with huge returns.

The key factors you need to remember about Home Based Business entrepreneurship are opportunities, innovation, and growth. A Home Based Business entrepreneur sees opportunities in environmental trends and changes that nobody has seen before and pursues this Home Based Business opportunity with whatever resources he has at hand. The second theme in Home Based Business entrepreneurship is innovation which involves transforming and revolutionizing existing products or services to cope up with the changing global environment. The third theme is growth; this involves the continual efforts of a Home Based Business entrepreneur to expand his business locally and internationally. A Home Based Business entrepreneur is on the constant look out on how to create new approaches to make His Home Based Business grow and become a huge success.

These themes are the key factors which Home Based Businesses are founded upon. The largest Home Based Business corporations you find today did not start out big, rather they started out as small Home Based Business enterprises by visionaries who want more than what is offered to them. You can see from the history of some of the most successful Home Based Businesses today that the founders of these Home Based Businesses have taken great leaps of faith and incredible amounts of risks in order to be what they are today. Wherever you turn, you see the results of Home Based Business entrepreneurship. But it is most obvious in internet commerce because this is a new industry. People that were unheard of before are becoming some of the riches names in the world and it is all because they have taken risks and have succeeded. So whether we realize it or not, it is the Home Based Business entrepreneurs who drive the global environment nowadays. They are the ones who are always seeking out Home Based Business opportunities and taking risks to improve our world and profit from it in return.

The Home Based Business Environment and even the technological advancements that are available today would not have been possible if these Home Based Business entrepreneurs did not come out of their comfort zone to invest in the development of these Home Based Businesses. As you can see, having the Home Based Business entrepreneurial spirit is definitely necessary for Home Based Businesses to reach greater heights and provide better and faster products and services to their clients. It is no wonder then that a lot of Home Based Business enterprises are hiring young and dynamic individuals with a vision and who are not afraid to take calculated risks to ensure the survival of the Home Based Business tomorrow.

Felix Alexander, Missionary in Christ-Jesus, of NSJCN4DataEntry.ws is a successful internet marketer working with top leaders in the Home Based Business and internet marketing industry. For more information to start your Own Home Based Business Visit: http://itshrunk.com/c67f32 ; and/or Call Toll Free NOW: +1-800-719-8268 ext. 15813

About the Author

By God's will, as an Ambassador of the Kingdom of Jesus-Christ on Earth; I am fully devout to model and Minister to as many as possible to Enjoy Earthly Riches According to the Kingdom of Jesus; while leading them to embracI HEARTILY INVITE YOU TO SHARE THE FOLLOWING TESTIMONIES:e firmly the Citizenship of the Kingdom of Heaven: to glory and honour The Only True Living God in all aspects, all domains, all walks of Their Lives now and for evermore, in Jesus' name! Amen!! Hallelujah!!!

What is the bottom half of a cone called?

If you split a right cone horizontally, you would end up with a cone on the top half and another shape with 2 circular bases. That shape could also be obtained by rotating a trapezoid on the perpendicular bisector of its bottom base.

a "truncated" cone

Area Roundup 03-11-10: Chilton wins it for Sun Devils
APPLE VALLEY • Apple Valley’s Kevin Chilton knocked in the winning run with two outs in the bottom of the seventh to give the Sun Devils a 5-4 victory over Big Bear on Thursday. Chilton’s single scored Clayton Nelems, who reached base with a...

Thanks for visiting!