BoilerIMS
9th August 2007, 18:51
http://www.speedtv.com/articles/indycar/auto/39310/
"The roll hoop, which protects the drivers in such situations, worked as designed. The tubular steel frame roll hoop was mandated to withstand 18,000 pounds of vertical, 6,500 pounds of lateral and 15,500 pounds of horizontal loads in testing. The sanctioning body also required that the structure it was fastened to (the top of the carbon fiber tub) also would be able to withstand similar loads."
The IRL chassis has a steel roll-hoop? I was under the impression that most modern carbon chassis had a kevlar-constructed roll-hoop. Can anyone verify that the roll-hoop is steel?
"The roll hoop, which protects the drivers in such situations, worked as designed. The tubular steel frame roll hoop was mandated to withstand 18,000 pounds of vertical, 6,500 pounds of lateral and 15,500 pounds of horizontal loads in testing. The sanctioning body also required that the structure it was fastened to (the top of the carbon fiber tub) also would be able to withstand similar loads."
The IRL chassis has a steel roll-hoop? I was under the impression that most modern carbon chassis had a kevlar-constructed roll-hoop. Can anyone verify that the roll-hoop is steel?