The Electronic Standby Instrument System (ESIS) provides which information?

• A. Attitude, Heading, Slip and Skid
• B. Altitude and airspeed
• C. Torque and VSI
• D. A and B

Answer: (D)

The Electronic Standby Instrument System (ESIS) is designed to enhance situational awareness and provide essential flight information to the pilot in case of primary system failure. It plays a crucial role in improving safety and operational efficiency in aircraft operation.

The correct answer reflects that the ESIS provides both crucial attitude, heading, slip, and skid information as well as altitude and airspeed. This combination of data is vital for pilots to maintain control of the aircraft. Attitude indicates the aircraft's orientation relative to the horizon, which is fundamental for flying. Heading provides information on the aircraft's direction, while slip and skid help in understanding the aircraft's balance during maneuvers.

In addition to these, altitude and airspeed are fundamental parameters that pilots continuously monitor to ensure safe flying. Altitude is essential for maintaining proper flight levels and avoiding terrain, while airspeed is critical for safe operation during different phases of flight.

The combination of these types of information helps pilots make informed decisions, especially in scenarios where primary instruments fail or provide unreliable information. By merging the necessary data from various flight phases, the ESIS supports pilot situational awareness, ultimately enhancing flight safety.