Which components are typically included in an airborne VOR navigation system?

An airborne VOR (VHF Omni-directional Range) navigation system is specifically designed for receiving radio signals to determine the aircraft's position relative to a VOR ground station. The correct components involved in this system include antennas, which receive the VOR signals, a frequency selector that allows the pilot to choose the desired VOR frequency, and a visual display that shows the information, such as the aircraft's heading in relation to the VOR station.

The antennas are crucial as they are the functional parts that capture the radio signals broadcasted by the VOR ground stations. The frequency selector enables pilots to tune into various VOR stations as needed during flight. The visual display interprets this information and presents it in a way that the pilot can readily understand, allowing for navigational decisions.

Other options include components that are not typically part of a VOR system. For instance, a receiver and transponder are more associated with transponder systems used for air traffic control, while an autopilot and throttle control relate to flight management rather than navigational systems. Similarly, a GPS unit and flight computer involve satellite-based navigation rather than VOR. Thus, the components mentioned in the correct answer are essential for the proper operation of an airborne VOR navigation system.