In a situation where two aircraft are on converging courses, who gives way?

In a situation where two aircraft are on converging courses, the standard rule is that the aircraft on the left must give way to the aircraft on the right. This rule is established to provide a clear protocol for avoiding collisions in the air, as both aircraft can be maneuvering in a three-dimensional space.

By adhering to this convention, pilots can predict each other's movements more consistently, which reduces the risk of accidents. The rationale behind this regulation is akin to the right-of-way rules used in road traffic. It creates a systematic approach to managing encounters between aircraft, promoting safety and efficiency in air navigation.

The other options describe circumstances that do not dictate the right-of-way in converging courses. The size or speed of an aircraft does not determine who has the right of way; instead, it is the relative positioning of the aircraft that is the guiding factor in this scenario.