willga wrote: ↑23 May 2021, 13:22The 1998-2002 Arrows F1 cars had a solid carbon roll hoop which was separately rivetted and bonded to the top of the monocoque - I assume this was industry standard at the time.
The 2016 Manor MRT05 had a machined titanium roll hoop bonded/rivetted to the tub. I don't know whether the shift is because of greater static tests for the hoop, or if this is how most of the teams do it nowadays.
It's always going to be a balance of strength versus having weight that high up in the car. And there will be budgetary constraints to consider too.
https://www.racecar-engineering.com/wp- ... upMAN9.jpg
Maybe at least a description how the roll hoops where made and how they were fitted exactly? Anything for more details?