This is the second chapter in the Introduction to GUT series.
Thinking about skiing in terms of extreme limits helps us to understand the underlying physics. Let’s compare two different scenarios at the centerline (CL) of the course to help demonstrate the unique relationship between speed and load.
For the first extreme, imagine approaching the gates, but instead of pulling out to the left, you stay behind the boat and start right on top the left wake. The instant you reach the gates you slam the ski on edge and pull extremely hard to head toward one ball. For this example, let’s assume that you are able to reach 5mph of cross-course speed by the CL, with your ski angle 50° to the course. In a highly loaded position, you are moving much faster straight down the lake (36mph) than across it (5mph).
Now imagine the opposite extreme. Let’s say you are again coming into the gates, but this time you pull out to the left and get very high and wide, nearly passing the windshield on the boat. With a wide and early turn in for the gates you build a lot of speed and angle progressively, allowing you to reach a 40mph cross-course speed by CL, and like the first extreme, with your ski angled 50° to the course. This time you are actually moving faster across course (40mph) than down course (36mph).
Figure 1 illustrates the two extremes we discussed above. As you can see for Scenario 2, the 40mph cross-course speed translates into a 53.8mph resultant speed, while in Scenario 1, the 5mph cross-course speed translates into a resultant speed of only 36.3mph, almost the same as the boat. What’s important to understand is that even though the physical angle of the ski relative to the course is exactly 50° in both cases, the load acting on the ski will be completely different due to the speed and direction of water flow relative to the bottom of the ski.
|Scenario 1: 5mph Cross-course Speed, Ski at 50°||Scenario 2: 40mph Cross-Course Speed, Ski at 50°|
(Merced, CA) – Today both Centurion Boats (Centurion) and Supreme Boats (Supreme) announced that respected industry veteran, Paul Singer, has been appointed as their President.
Singer, an Air Force veteran, is highly respected for nearly three decades of work in the boating industry. He is best known for playing a key role serving as an executive at one of the boating industry’s largest manufacturers. During his time at the boat manufacturer Singer played an instrumental role building the organization from a start-up into a respected industry leader. Singer is universally respected and liked among competitors, dealers, vendors and customers.
Centurion and Supreme are both owned by Correct Craft and are built in Merced, California. For over twenty years Centurion has been the official boat of the Wake Surf World Championships and was recently chosen by the International Waterski and Wakeboard Federation (IWWF) as the official boat of their Wakeboard World Championships. Supreme is known for providing great watersports boats at an exceptional value. Singer will serve as President of both brands.
Singer, President of Centurion and Supreme stated “I could not be happier to join the Centurion and Supreme teams. Both brands have wonderful teams and we will work together to achieve great things!” Singer added “I am also happy to be part of Correct Craft. The Correct Craft culture is amazing and something we look forward to further developing at Centurion and Supreme. The future is exciting!”
Bill Yeargin, CEO of Correct Craft, announced Singer’s appointment today stating “Paul Singer is one of the most respected people in our industry and he will have a big impact on both Centurion and Supreme. Paul fully embraces the Correct Craft culture and he is a friend; Paul is one of the best guys I know and I could not be happier to have him joining our family.” Yeargin added “In the several months since Correct Craft purchased Centurion and Supreme the brands have released exciting new product, added nearly thirty new dealers, seen production processes improved, added key talent and seen Centurion selected as the official boat of the IWWF Wakeboard World Championships. Having Paul join the team tops this all off with the best news yet and begins an exciting new era at Centurion and Supreme!”
Denali Skis is a new USA based startup in the water ski community with a revolutionary approach to ski design, product support, and skiing philosophy. We at Denali are excited to announce the launch of our new 2016 Denali Ski, now available in limited quantities at Denaliskis.com.
Orders are fulfilled on a first-come first-served basis, and skis will no longer be available when order limits are met. By intentionally controlling volumes, Denali intends to grow organically, focusing on personalized technical support for each individual customer. Visit Denaliskis.com to learn about our asymmetrical fin settings, free-flex binding plate, measure-flat tail, and much more!
The team behind Denali consists of engineers who are also skiers. For several years, Denali has worked off the grid exploring the boundaries of water ski design. With the use of an exclusive rapid prototyping method, new concepts at Denali are drafted to a 3D model, machined into a mold, built and tested - all in less than 72 hours. As a result, Denali has evolved its ski design faster than ever before, putting the new 2016 Denali years ahead of the competition.
In addition to the most cutting edge design in slalom history, flex and torsion patterns are customized for each individual skier. Matching the skier’s size, weight, and ability to a tailored flex pattern provides ideal characteristics to optimize the delicate balance between speed and feel on the water, further improving longevity and performance.
Providing an unmatched level of support, Denali customers will have access to an online community where skiers can ask questions and share ideas about setup, technique, and training. This platform provides customers direct access to the Denali community as a whole, as well as the engineers/skiers behind the ski, allowing for continuous technical support to help all customers take their skiing to a whole new level!
Join the Denali community today, and order now at Denaliskis.com to get your limited edition custom built Denali ski! Skis will begin shipping May 1st.
QUINCY, WA (January 29, 2016) – We are excited to announce that Crescent Bar River Fest will include the first annual Herb O’Brien Memorial Cup this year. Radar Skis, MasterCraft Boats and Sunshine Marketing have partnered to celebrate the Godfather of waterskiing with this Cash Prize Pro/Am waterski tournament.
Our mission is to celebrate the spirit that Herb O’Brien instilled in waterskiing, the passion he held for water sports in the Northwest and his specific love of Crescent Bar. It’s these values that we wish to reinforce in the community through an annual professional ski event and pro skier tour through Western and Eastern Washington.
The Herb O’Brien Memorial Cup will feature and international field:
K.C. Wilson – 3X Jr. Masters Champion
Brooks Wilson – 3X Jr. US Open Champion
Freddie Winter – Pro Champion and British Record Holder
Jason McClintock – Canadian Record Holder
Stephen Neveu – World Champion Medalist
Chris Rossi – Professional Champion
Trent Finlayson – Canadian Record Holder
Terry Winter – Professional Champion
Herb O’Brien founded O’Brien Sports, HO Sports/Hyperlite and most recently Ronix Wakeboards and Radar Waterskis. In 1972, he built the second ever manmade waterski lake in Woodinville, WA which today remains one of the most famous lakes in the world. Anyone with the privilege of knowing Herb remembers him for his generosity and giving nature. There are endless stories of his compassion told by the hundreds of people who worked for him over the years.
|Rank||Skier||Event %||Score %||Combined %|
|13||Coble Eller April||21.43||7.14||14.29|
SW&WC opens the season 2016
We are back, and it is now time to start planning your 2016 ski season. We are happy to announce that training opens March 5th with Easter holidays around the corner which is a great time to start skiing, relaxing and enjoying life in our beautiful complex! Not only will we be happy to help you with your skiing skills, with a fully stocked pro-shop waterPROOF – we’re also here to equip you with the latest skis, vests, gloves, handles and swimwear!
Building on last season’s success, this season we will host 4 tournaments:
· 1-2 July: Sesena´s Summer Slalom (4 rounds)
· 2-3 July: Nautique Big Dawg World Tour (2 rounds + head to head finals)
· 4-7 August: +35 European Championships
· 1-2 October: Sesena´s International Slalom (4 rounds)
If you are planning to compete in any or all of the above, please send us your entries early as each competition fills up quickly! Also, don’t forget to book your practice / training sets during the same time.
Once again during June, July and August we will have our kids courses, for more info and reservations contact us.
Hope to see all of Sesena skiing friends soon!
We are starting with the right foot, launching a project that fills us with enthusiasm and happiness.
We are launching the new WATERPROOF website and blog, www.waterproof.cc
It´s been already 6 years since we began this adventure, founded in 2010 by water ski and wake professionals with the aim of meeting the needs of enthusiasts of the sport by providing all necessary materials at the best prices, solving the problems of finding the right equipment in the nearby.
We have decided to go one step forward and redesign our web and create a blog where you will find posts regarding the pre-season, new products, driving tips, yoga stretching before and after your set and more written by professionals of this sport like Matt Rini, Chris Rossi, Javier Julio, Ricardo Botas, Claire Lise Welter, Natalie & Fred Halt, Ivan Morros, Whitney Mcclintock, Sandra Botas, Nadine Botas, Cristina Medem and many more. We want to thank them all for the help.
You will get 2 posts per month, we hope you like them and they inspire you as much as they inspire us.
And as we are launching the new web we want to offer you free shipping during the first week, use the code WELCOME.
Thank you for following us. Don´t forget to sign up in our newsletter for the latest news, posts and offers.
Welcome to this new chapter.
|Rank||Skier||Event %||Score %||Combined %|
Taking a trip to Orlando, Florida? Let MappleSports be your one stop place to train! Bring the whole family. You can book your time and be in and out in 30 minutes or hang out and let the kids learn to ski; paddle board available too. Great location... minutes from the airport, the convention center and attractions. Hope to ski with you soon.
The world record capability lake can be booked by the set or rented by the hour, day, week or month with a Nautique 200 and driver provided.