The secondary pitot static system provides information to which computer?

The correct answer, which identifies the system that the secondary pitot-static system provides information to, is the Air Data Computer (ADC). The ADC receives input from both the primary and secondary pitot static systems to calculate essential flight parameters such as airspeed, altitude, and vertical speed. This redundancy is crucial for safety, ensuring that accurate data is still available even if one system fails.

In the case of the other options, they serve different functions within the aircraft. The Flight Data Recorder (FDR) primarily captures flight data for accident investigations but does not actively process real-time flight data for navigation or control during operation. The Engine Data Manager (EDM) monitors and processes the performance data of the aircraft's engines and systems rather than flight data parameters. The Navigation Control Unit (NCU) is responsible for navigation functions and does not directly rely on pitot-static data for its primary duties. Thus, the ADC is the only system among the options that directly utilizes information from the secondary pitot-static system for real-time flight calculations.