How many fuel probes are there for metering in each tank?

The correct understanding regarding the fuel probe configuration in the aircraft is that there are four fuel probes per side for metering purposes. Each probe plays a crucial role in accurately gauging the amount of fuel in the tanks. These probes ensure that the fuel management system receives precise readings, which are essential for monitoring fuel levels, enhancing safety, and optimizing flight planning.

With four probes, the system can provide a comprehensive assessment of fuel status, helping to mitigate issues that may arise from inaccurate fuel readings due to fluctuations in fuel quantity and distribution. This design is intended to provide redundancy and improve measurement accuracy, an important factor in aviation where fuel management is critical.

Additionally, the number of probes per side may differ based on aircraft design; other configurations may utilize fewer probes, but in this case, the four-per-side specification is the standard utilized in the aircraft, thus confirming the correct answer.