Showing posts with label Canoe Slalom Tickets for Olympic 2012. Show all posts
Showing posts with label Canoe Slalom Tickets for Olympic 2012. Show all posts

Tuesday, 20 December 2011

Canoe Sprint Paddles and Olympic Canoe Sprint Tickets


Paddles for propelling are double-bladed for kayaks, and single-bladed for canoes, and are usually made of carbon fiber with epoxy. For kayaks so called wing paddles are generally used, the blades of which are shaped to resemble a wing. These paddles are more efficient than traditional paddles, presumably because they create extra "lift" in the direction the kayak moves. The wing blade has undergone many evolution in the past two decades, evolving from a flatter blade to one with a more pronounced curve to better catch the water. For racing canoes, the blade will typically be short and broad, with a 'power face' on one side that is either flat or scalloped out. 
The shaft will typically be longer than a tripping canoe paddle, because the kneeling position puts the paddler higher above the surface of the water. More recent designs of canoe racing paddles often have a slight bent shaft a concept of Gene Jensen in the 1950s but not to the degree used in marathon paddles. Many high-performance canoe paddlers prefer the feel of a carbon fiber shaft mated to a wooden blade, while nearly all high-performance kayak paddlers use paddles made completely of carbon fiber.
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Wednesday, 14 December 2011

Development of Slalom Boats and Olympic Canoe Slalom Tickets


In the 1960s and early 1970s, boats were made of heavy fiberglass and nylon. The boats were high volume and weighed over 65 pounds. In the early 1970s Kevlar was used and the boats became lighter as well as the volume of the boats was being reduced almost every year as new designs were made. A minimum boat weight was introduced to equalize competition when super light materials began to effect race results. The I.C.F also reduced the width of the boats in the early 1970s. The gates were hung about 10 cm above the water. When racers began making lower volume boats to sneak underneath gates, the gates were raised in response to fears that new boats would be of such low volume as to create a hazard to the paddler. Their low volume sterns allow the boat to slice through the water in a quick turn, or 'pivot'.

Typically, new racing boats cost between $1,200 and $2,500 or £650 onwards for the cheapest constructions in fiberglass. Usually boats are made with carbon fiber, Kevlar, and fiberglass cloth, using epoxy or polyester resin to hold the layers together. Foam sandwich construction in between layers of carbon, Kevlar or Aramid is another technique in use to increase the stiffness of slalom boats.
Recently, the minimum length of these boats were reduced from 4 meters down to 3.5 meters, causing a flurry of new, faster boat designs which are able to navigate courses with more speed and precision. The shorter length also allows for easier navigation and less boat damage in the smaller man made river beds that are prevalent in current elite competitions. Boat design progression is rather limited year to year. Designs tend to focus on providing optimal performance for upcoming critical race venues. Olympic years tend to generate boat designs with specific performance characteristics tuned for the upcoming Olympic course.
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