[AHappyCamper]

I'm sorry, but that's a whackadoodle approach to engineering. 40C is well within the range of expected temperatures, and the men who designed it failed epically. There have been heatwaves in the UK since 1911 where the temp approaches 40C.

https://www.theguardian.com/uk-news/from-the-archive-blog/20...

[jfax]

All of those temperatures are multiple degrees below 40.