What is one of the key materials used for aircraft conductors?

Aluminum is widely used as a key material for aircraft conductors due to its excellent electrical conductivity, lightweight properties, and resistance to corrosion. These properties make aluminum an ideal choice for applications in the aerospace industry, where weight savings are critical for fuel efficiency and performance. Additionally, aluminum is more cost-effective compared to other conductive materials like copper and is easier to process in various manufacturing settings.

While other materials, such as gold and copper, do have high conductivity, they are heavier or significantly more expensive. Iron and graphite are less commonly used due to their limitations in conductivity and performance under various conditions found in aviation settings. Thus, aluminum stands out as the primary choice for aircraft conductors.