Originally Posted by F1R
...an over temperature / fire detection and alert system near the cooing air exit would provide improved odds of a faster reaction and landing.
I have one of those. It's a $13 digital meat thermometer with the probe stuck through the firewall. It doesn't have an alarm so would only serve as confirmation of a fire. I also installed a 3/8" aluminum tube "spray bar" in front of the firewall which is plumbed to a fitting on the panel into which my Halon fire extinguisher nozzle fits. I hope I never have to use those things.