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Impact Attenuation Press Release: New Auto Racing Safety Devices Have Broad Potential

08/27/96


New Auto Racing Safety Devices Offer Life Saving and Injury Reduction
Potential


MOSPORT, Ontario, Aug. 23 -- Four innovations from the
inventor of highway safety barriers may save drivers from serious or
fatal injury. In development since 1994, they include a number of
practical and relatively inexpensive energy-absorbing devices:
A cluster of energy absorbing "cushions" that can decelerate a racing car from 100 mph to a stop in 30 feet. A displaceable guardrail that actually moves with the impact of a racing car. A tire wall, with the tires behind the guardrail. A cocoon-like seat that wraps around and protects the driver, and includes a helmet tether and crash-absorbing seat mount.
The Federation Internationale de L'Automobile (F.I.A.) -- which sanctions all Formula One races, the Daytona 24-Hour endurance race, World Championship rallies and other motorsports events worldwide -- has expressed an active interest in these designs. Creation of the devices was motivated by the deaths of Ayrton Senna and Roland Ratzenberger at the San Marino course in Italy. The devices were initially developed for road racing courses, specifically those on the international calendar for Formula One events. However, the concepts could be adapted for American road courses, oval tracks, drag strips, with highway versions as well, and by race sanctioning organizations that include IndyCar, NASCAR, IMSA, SCCA, and NHRA. The inventor is John Fitch, whose Fitch Intertial Barriers -- the yellow, sand-filled barrels you see in front of bridge abutments -- have saved thousands of lives on America's highways. His 18-year racing career has included a GT-class win in the Mille Miglia and overall wins in World Championship events at Sebring and the Tourist Trophy in Ireland, driving with Stirling Moss on the Mercedes team. Fitch later became a consultant for race course designs, and directed the early operations at the track at Lime Rock, Connecticut. One of the energy-absorbing devices is an adaptation of the Fitch Barrier. It is a grouping or array of energy-absorbing modules, designed for head-on or high angle, high speed impacts. It increases resistance as the car nears the rigid guard rails in place for spectator protection, and it will be able to drastically reduce the forces acting on drivers. This deceleration system has been named the "Cunningham," in honor of the designer's longtime teammate and racing patron, Briggs Cunningham. A useful feature of the system is that elements of it can be replaced quickly by race workers during an event. The displaceable guardrail works on the principle of the blocking sleds that football players use while training. Instead of being mounted to rigid, in-ground posts the guardrail is mounted on weighted skids. The amount of resistance varies with the amount of weight on the skid. Thus resistance is adjusted to the speed of impact anticipated. The impact-absorbing compression guardrail is proposed as a replacement for current walls, guardrails and tire barriers -- the bundles of tires stacked in front of unyielding guard rails and concrete walls. When hit at a shallow angle at racing speeds, tire walls snag and violently reject the cars back into the stream of traffic. In the new design, resilient tubes or foam- filled tires are banded and placed between the post and the track-side rail, thus preventing snagging and rejection into traffic. As an advantage of the compression guardrail, it can be used where space is limited. The fourth design idea is a driver safety capsule that protects the driver within the car. Somewhat similar in concept to those used in Unlimited Hydroplane racing it is a cell that surrounds and protects the driver from the effects of a collision, yet leaves him free to steer, shift and brake. The intent is to integrate it into the design of the race car so that an injured driver can be removed from the car while immobilized in the cell. These designs were presented to the Federation Internationale de L'Automobile at a meeting in London, and subsequently to Max Mosely, the president of F.I.A. As a result, the designs now have the support of the F.I.A. and they have offered to test the Cunningham at the MIRA proving ground in England. Highway applications of these racing safety systems are expected to evolve after the impact attenuating barriers have been proven in motorsports, as in the past. The company formed to develop, manufacture and install the safety devices is Impact Attenuation, Inc. The people involved with the company and its projects include John Fitch, William and Douglas Milliken, Karl E. Ludvigsen, Paul Frere and Stirling Moss. In addition to his advisory role in the design of the race track at Lime Rock, Connecticut, Fitch is best-known as the only American ever to drive for the Mercedes-Benz racing team. The Millikens are noted engineers and the authors of Race Car Vehicle Dynamics, published by the Society of Automotive Engineers. Mr. Ludvigsen is the founder of the Motor Racing Safety Society and chairman of a motor industry consultancy, headquartered in London, England. Paul Frere is a LeMans-winning driver, noted automotive journalist and author of the book Sports Car and Competition Driving. Stirling Moss is a legend in motorsports. Phil Hill and others prominent in the sport are informed advocates. To date, Adrian Reynard has offered a Formula Atlantic car to be used for crash testing. Briggs Cunningham, Roger Penske, Vintage Motorsport and Roadway Safety Service, a supplier of highway safety devices, are among those who have helped to launch the undertaking. Additional sponsorship will be required for prototypes to be fabricated and tested. Interested parties should contact Impact Attenuation, Inc., 433 Salmon Kill Road, Lime Rock, CT 06039, 860-435-2006, or Carl Goodwin, Hedge & Company, Southfield, MI 860-350-2190.