Final answer:
The question is about computing the distance between specific navigational points known as fixes and NAVAIDs in aviation. This is achieved through onboard navigation systems or manual calculations using aviation charts and is critical for air navigation and flight planning.
Step-by-step explanation:
The question pertains to the calculation of mileage between fixes, which are specific points in space used for navigation and air traffic control, and NAVAIDs, or navigational aids, which are a collection of radio-frequency transmitters that provide aircraft with data on their geographic position and bearing. In aviation, pilots and air traffic controllers often need to know the exact distance between these points to ensure the safety and efficiency of flight routes. The mileage is typically calculated using avionics equipment that processes data from a variety of sources, including satellites (as in GPS), ground-based navigational systems, or even inertial navigation systems.
To calculate the distance between these navigational points, one must either use the data provided by the onboard navigation systems or perform manual calculations using aviation charts and applying mathematical principles such as the haversine formula or the law of cosines for spherical trignometry. This is a crucial aspect of air navigation and flight planning, affecting fuel estimates, flight time, and adherence to air traffic control restrictions and regulations.