<http://schema.org/articleBody>
" In the winter of 2005, a craft that&amp;#039;s currently in the design phase will fire up its engines on a large reservoir in eastern Washington state and try to crack 400 mph -- setting a new water speed record. The boat, the American Challenge, piloted by Russ Wicks, will be unlike any other in history. A product of computer modeling and technology borrowed from the aerospace field, the revolutionary boat will be constructed by a team using the most advanced composites and working under exacting, state-of-the-art conditions. The cost is expected to ring in at about $5 million. Halfway around the world, at Blowering Dam in Australia, another craft, completed in 1999, is expected to take up the same challenge at about the same time. This boat, the Aussie Spirit, was designed and built by one man in his backyard shed. The cost, in comparison with the American Challenge, is chump change. This effort would seem laughable when stacked up to Wicks&amp;#039;s if it were not for one thing. Its designer, builder and driver, Ken Warby, holds the current water speed record at 317.60 mph. It&amp;#039;s not an entirely friendly competition: In fact, Wicks and Warby seem to take a perverse joy in throwing verbal boat anchors at each other. &amp;quot;A Wile E. Coyote going for a ride on a fiberglass board,&amp;quot; says Wicks of Warby. &amp;quot;He&amp;#039;s pushed the limits of what you can do without the latest technology.&amp;quot; Warby isn&amp;#039;t as kind. &amp;quot;Wicks is known in boat racing as the media whore,&amp;quot; he says. &amp;quot;He&amp;#039;s not going to do anything. The design that he&amp;#039;s got will kill him -- if he ever builds it.&amp;quot;  The two speedsters clash even when it comes to the best water for going fast. Wicks will be running on 7 miles of smooth, flat water surrounded by a gentle and symmetrical shoreline. A world record requires a run in both directions within an hour&amp;#039;s time. The last thing you want, he maintains, is to have odd-shaped wakes coming at you on the return run. Warby, in contrast, likes a rippled surface. Ripples, he says, create air pockets on the hull so it&amp;#039;s like riding on marbles. Smooth, flat water creates added drag, which according to Warby can add up to a 30-mph penalty at 300 mph. No matter what the water conditions, 300 miles per hour is seriously dangerous -- much more so than the same speed on land, where the current record is 763 mph. Boats running at record speeds plane on a surface area the size of a teacup saucer. And that&amp;#039;s when they&amp;#039;re not flying totally out of the water. Catch too much air under the bow and you flip over backward in a paroxysm of disintegration. And while you may be able to survive a land speed crash, there&amp;#039;s no second chance on the water. Since Warby&amp;#039;s boat is a known quantity, Wicks&amp;#039;s ride is the one being watched by designers around the world. It&amp;#039;s engineered so that the impact loads pass near the craft&amp;#039;s center of gravity. This minimizes pitching and yawing, and makes it easier to keep his ride on course. The American Challenge will rely on computer-controlled airfoils for stability control. Gyro inputs on Challenge&amp;#039;s attitude will be processed at 1000 times a second. This leaves Wicks with just the throttle and rudders (water and air) to contend with. As a last resort, the computer will trigger an ejection seat to launch Wicks out of harm&amp;#039;s way. But slamming into water at 300-plus mph is like being fired out of a cannon into a brick wall. Powering the carbon-fiber and Kevlar composite craft will be two GE J85 jet engines each producing 5000-plus pounds of thrust (about 9000-plus horsepower) with afterburner. The cockpit will be a 1-1/2-in.-thick solid carbon-fiber tub--similar to that in a Formula One car. DIGITAL HUMAN  The cockpit is being designed using a program called Jack that was developed by UGS PLM Solutions. Jack is a biomechanically accurate virtual human that, when programmed with Wicks&amp;#039;s body dimensions, can be seated in a virtual cockpit and used to predict reach, vision and fit requirements. Meanwhile, Wicks is wind-tunnel and water-tank testing a one-tenth scale model of his yet-to-be-built 40-ft. craft. And Warby? We haven&amp;#039;t heard of him doing much wind-tunnel testing lately. If the past is any indication, the master of the old school is probably doodling any last-minute design tweaks on the back of a napkin.  DO YOU FEEL LUCKY, MATE? Ken Warby has beaten the odds. Four other water speed record seekers -- John Cobb, Lee Taylor Jr., Donald Campbell and Craig Arfons -- didn&amp;#039;t. Anyone who could design a boat on his kitchen table in one night, singlehandedly build it and the trailer to haul it on under a tree, and then run it to a record speed of over 300 mph, either has to be tapped into the cosmos or be very lucky. Warby powered that boat -- the Spirit of Australia -- with a $65 military surplus Westinghouse J34 jet engine. That same engine modified for more power and fitted with an afterburner (&amp;quot;should it be needed&amp;quot;) finds a new home in the Aussie Spirit. Output of the J34 is 3500 pounds of thrust increasing to 5000 pounds of thrust with the afterburner. The Aussie Spirit has no on-board computer and no movable airfoils other than an air rudder. Warby relies on conventional throttle and steering (and maybe a rabbit&amp;#039;s foot?) for stability and control. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/adventure/outdoors/a196/1277281/>