What information does the upper left corner of the EHSI show when selected?

The upper left corner of the Electronic Horizontal Situation Indicator (EHSI) displays vital information related to navigation and flight progress. When selected, it shows the distance to the next point, groundspeed, and time to go (TTG). This information is crucial for pilots as it aids in situational awareness and helps in managing the flight plan effectively.

Understanding this display is essential for navigation, as the distance to the next waypoint informs the pilot of how far they are from their next destination, allowing for more effective planning of descent and approach. The groundspeed indicates the aircraft's speed over the ground, which is important for timing and distance calculations. Time to go provides an estimate of how long it will take to reach the next waypoint based on the current groundspeed, helping in making informed decisions about adjustments to speed, altitude, or course.

The other options describe different data that may be available on various other instruments or during other settings on the EHSI, but they do not specifically refer to the prominent information located in the upper left corner when selected. This understanding is an essential part of flight management and navigational procedures in aviation, particularly in the T-6 training environment.