What is the primary benefit of using an electronic fuel quantity indicating system over a mechanical one?

The primary benefit of using an electronic fuel quantity indicating system over a mechanical system is higher accuracy in readings. Electronic systems utilize advanced sensors and digital processing, which allow them to provide more precise measurements of fuel quantity. This increased accuracy is essential for flight safety and operational efficiency, as precise fuel readings enable pilots to make informed decisions regarding fuel management and range planning.

Mechanical systems, on the other hand, can be subject to physical wear, potential calibration issues, and limitations in measurement precision due to their mechanical components. Consequently, the electronic system's ability to deliver consistently accurate readings enhances overall reliability and safety in aircraft operations.

Moreover, while electronic systems may require less maintenance due to the reduced wear and tear compared to mechanical systems, the main distinguishing factor remains the accuracy of the measurements they provide, making them preferable in many modern aircraft designs.