Guest guest Posted April 28, 2004 Share Posted April 28, 2004 I thought some would find this ineresting. At the start of the 19 mile Run of the Charles, I saw this strip kayak with wheels fixed on the rear deck. I thought it was just another crazy contraption. The fact is, this guy, Steve Rosenau, designed and built this boat to just squeeze by the USCA Sea Kayak Class rules. It turns out to be more of an over sized sprint boat but as a sea kayak and so he could use wheels at portages, just flip it over and run. This guy trained hard for the event and did the 19 miles in 2:39. The following letter is from Jonathan Smith: Steve Rosenau's sea kayak design is a joint effort between John Winters and myself. I provided John with a list of dimensions to meet all the common "touring Sea Kayak" class rules including the USCA and the Sound Rowers System. I provided some general comments on the type of paddler, type of conditions and estimated constant velocity (Steve is consitantly exceeding this). One of the most critical parameters provided was the boat's design displacement. Nearly all touring kayaks are designed for much heavier loads than they are ever raced with. Having paddled Winters pretty fast QCC700 and having studied sailboat design for many years I knew there was a huge decrease in wetted surface possible over most touring kayaks by limiting bouyancy requirements and then accomplishing this with the roundest sections allowed by the class rule's waterline & overall beam dimensions. The use of a full-time rudder was also mandatory because of the great advantage it provides to making as efficient a hull shape as possible. I commissioned John Winters to draw up the design because of his software skills, sailboat canoe and kayak design experience and established credentials. Working with John Winters was a great experience. We had many discussions on design, the state of the class rules, and the great difficulty of trying to get the masses to understand the basics of boat design, never mind the more complicated principals. For example, John struggles to understand why most Unlimited boats are around 21ft in length. In most marathon races with most paddler weights a significantly shorter boat should be faster. Maybe the Unlimited-like level of performance by our new 18 ft boat designed to the much less slender Sea Kayak specs will open some minds. I digress. Steve Rosenau built his and my wood strip versions of the design in his free time at his North Carolina home. They were built on computer cut forms taken from Winter's 3D computer model. Steve lives on beautiful Lake Norman, has many canoes and kayaks and has a great love for paddling. He has beaten his personal records with the new boat. I did not know when he offered to build the boats how dedicated to paddling he is. It is amazing to me that he would travel all that distance to do the ROTC. He also traveled down to Florida over the winter to win the Bogey n Bacall race series in the boat. Race 2 was in 35 - 40 mph winds! He plans on traveling back to New England for his first Blackburn later this summer. Steve does not have much experience in the ocean, but I suspect he will rise to the challenge. I plan on turning my wood stripper into a plug to make molds for composite production. I have been getting my ducks in a row with regards to materials and components and hope to get started on bulding some boats soon. I am not sure how far I will go with the project, but I hope to build at least two composite models, one for me and another for Steve. After trying out many brand name ideas and doing some research I am likely to call the boat the Fairbanks FSK. I have a couple other models in my mind to fill out the Fairbanks line, but I am taking things slowly right now. Images of Steve and I trialing the boat on Lake Norman can be seen at: http://community.webshots.com/album/101764624JDaLUa Jonathan Smith Quote Link to comment Share on other sites More sharing options...
Ben Fuller Posted April 29, 2004 Share Posted April 29, 2004 Wondered when someone would drive a truck through the barely defined sea kayak rule. Epic started it and CLC with their Pax's are in the area, although they may be too narrow to be Sea kayaks. Unfortunately it will end the days of "run what you brung" but may mean more boats hanging from the garage roofs. Noted that you have bulkheads in the boat which is good. I suspect that sea kayak rules also should require hatches, deck rigging and a minimum weight. Will be interesting to see how the boat does in the Blackburn in conditions... I remember one year that it was SCW out of the NW, breaking beam seas on the exposed leg that rolled an outrigger.At 58 I just try to stay ahead of guys my age, and thats pretty hard in my old Nordkapp, a little easier in the North Bay. Quote Link to comment Share on other sites More sharing options...
Dee Hall Posted April 29, 2004 Share Posted April 29, 2004 When this guy passed me, I thought that the wheels bolted to the rear deck were clever. After the first portage, I was even more impressed with the idea. Quote Link to comment Share on other sites More sharing options...
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