Why are cooling fans recommended for avionics equipment?
The greatest contributor to reliability and improved life of all modern avionics is to limit the operating temperature of panel or remote mounted units. Therefore, the importance of providing avionics stack cooling is essential to the life span of electronic equipment. While each individual unit may not require forced air cooling, the combined heat load of several units operating the avionics stack will significantly decrease the reliability of the avionics. Failure to provide stack cooling will most definitely lead to increased avionics maintenance costs and frequent issues.
