While it’s obvious that you now “line up and wait” where you once positioned and held, that’s not the only place international standards are sneaking into your flying.
Height above What?
I always thought the term TCA-Terminal Control Airspace-had the right ominous overtones for airspace I didnt want to blunder into as a newbie pilot. In comparison, Class B airspace sounds like a factory second the FAA picked up at a bargain price. (The border is a bit ragged on the south side, but dont worry about it, no one will notice.)
Key Takeaways:
- A 2007 TERPS update (Change 20) began subtly changing U.S. approach charting terminology to align with international standards.
- Specifically, "Height Above Touchdown (HAT)" is being replaced by "Height Above Threshold (HATh)," and "Touchdown Zone Elevation (TDZE)" by "Threshold Elevation (THRE)."
- This is largely a "paper change" with minimal practical safety impact, as the measurement difference is usually only a few feet, but pilots should expect a mix of old and new charts for a significant transition period.
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