What type of backup information does the ISI provide to the pilot?

The ISI, or Integrated Status Indicator, provides critical flight information to the pilot, including altitude, attitude, and airspeed indications. This information is vital for maintaining situational awareness and ensuring the safe operation of the aircraft.

Altitude indicates how high the aircraft is flying, which is essential for avoiding obstacles and maintaining a safe flight profile. The attitude of the aircraft shows its orientation relative to the horizon, helping the pilot understand the aircraft's position in three-dimensional space. Airspeed indications inform the pilot about the speed of the aircraft relative to the surrounding air, which is crucial for performance calculations, stall awareness, and maintaining the appropriate approach speeds during phases of flight.

The integration of these parameters into the ISI enables pilots to have a clear and concise view of their aircraft's status, directly influencing their decision-making process while flying.