Roll Structure Testing

In Simple Terms

The main roll structure (the safety cage protecting the driver) must pass two strength tests on the exact same structure. First, it's tested at 75% of maximum force (129kN), then at full force (172kN). Each test involves applying the load quickly (under 3 minutes) and holding it steady for 10 seconds to ensure it won't fail.

• The same roll structure must pass both the 75% and 100% load tests - teams can't use different structures
• Peak load must be applied in less than 3 minutes, then held for 10 seconds
• Full load testing is 172kN (roughly the weight of 17.5 tons pushing down on the structure)
• This is a mandatory safety procedure that all cars must complete before competing