Core Thermal Peaks

[Kerbinator-Fras]

Sometimes, when you are traveling over 2km/s , some parts suddenly heat up and explode
Note that parts affected are mainly tail fins, and control surfaces behind the main wing
The derivative, dT(core)/dt can reach over 500K/s, which is very abnormal in core temperature - Even sudden fiery explosion without even overheat bar shown up
Showcase is attached (by unzipping the zip package you find a mp4 file lol)
Tail fin explode.zip

[dkavolis]

The only way FAR interacts with thermals is by setting radiative and exposed areas. Funny thing is KSP also adds some magic scaling to the exposed areas for convection which made convective heating with FAR lower than in stock. dev version exposes the areas in a way that KSP can apply its scaling so the heating should be higher and closer to stock.

If you enable thermal debug from the cheat menu (Alt+F12 > Physics > Thermal > Display Thermal Data in Action Menus) you should see what caused the explosion.