WaveAerospace

Your engineers should watch this, not for the problem, but for the process used to solve it. :-)

Keeping the avionics at an optimum working temperature, from the baking hot desert to the icy spray of the North Sea, takes more than a temperature-controlled fan.

This purpose-built Falcon II has a very special trick hidden in plain sight. When transitioning between critical hot and cold temperatures, thermochromic pigment in upper paint layers changes color to help maintain the aircraft's internal temperature.

The careful selection of colors and transition temperature can make a difference of as much as 20˚C to the internal temperature of the aircraft. Here we see the Falcon's top cowling changing color in realtime when put into an ordinary freezer.