Airport Operations - Non-Towered Airport Traffic Pattern | Training Blog

What is the recommended entry into a non-towered airport pattern when approaching from the opposite side of the pattern?

AI-generated editorial illustration based on GCAC Cessna 172K N84455 and the recognizable runway, turf extension, hangars, and surrounding farmland at Green Castle Airport (IA24). It is illustrative, not current operational guidance.

​The FAA's preferred, commonly called "teardrop" entry from the opposite, or upwind side of a left-hand pattern is to cross midfield at least 500 feet above traffic pattern altitude, fly clear of the pattern by approximately 2 miles, descend to pattern altitude, and turn right to join the 45-degree entry to midfield downwind.

That extra-altitude crossing lets you observe the airport and traffic without descending through the pattern. For a normal 1,000-foot AGL piston-airplane pattern, the crossing would normally be at least 1,500 feet AGL. The Airplane Flying Handbook recommends remaining at 2,000 feet AGL when large or turbine aircraft operate at the airport so you do not conflict with their higher pattern.
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The alternate, commonly called a direct entry, crosses midfield at pattern altitude, yields to traffic on the preferred 45 and downwind, and then turns directly onto downwind. The FAA calls it the alternate midfield entry and says it should not be used when the pattern is busy. The preferred route gives you an easier escape: If traffic prevents entry, continue away from downwind and try again.

The preferred route is shown at left; the alternate midfield entry is shown at right. Visuals are not to scale. Source: FAA Airplane Flying Handbook, Chapter 8, Figure 8-3, p. 8-5.

These are FAA recommendations, not a regulation prescribing one entry path. Regulations govern traffic-pattern flow and right-of-way, while the entry guidance helps pilots arrive predictably and reduce collision risk.
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Mirroring the Entry at Green Castle
At Green Castle Airport (IA24), field elevation is 756 feet MSL and the Club-published traffic pattern altitude is 1,756 feet MSL. That makes the normal preferred midfield crossing at least 2,256 feet MSL.
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Note: The KCID Class C shelf begins at 2,100 feet MSL. To fly an overhead midfield pattern entry at IA24, you will need to be in contact with Cedar Rapids Approach.

Before flight, review the pattern-altitude refresher and verify current charts, airport information, and NOTAMs.
The FAA figure assumes a left-hand pattern. Green Castle uses left traffic for Runway 33 and right traffic for Runway 15, so the geometry must be mirrored for Runway 15. The crossing altitude and outside-the-pattern descent remain the same, but the final turn onto the 45 must place you on the correct side of the runway. The Club's traffic-pattern diagrams show both runway patterns, and the related pattern-direction refresher explains how to confirm left versus right traffic.

GCAC's simplified Runway 15 diagram shows the right-hand pattern used at IA24 without the full course-level detail. Use it to visualize the correct side of the runway; it does not depict the opposite-side arrival entry or replace current preflight information.

​A good arrival briefing therefore answers four questions before you reach the airport: Which runway? Which pattern direction? What pattern altitude? Where will you descend and join the 45? Keep listening and looking throughout the maneuver; a quiet CTAF does not mean the pattern is empty.

FAA Sources and References
AC 90-66C, Non-Towered Airport Flight Operations, paragraphs 8.2.1 and 11.3; Appendix A, p. A-5
Airplane Flying Handbook, FAA-H-8083-3C, Chapter 8, pp. 8-4 to 8-5, Figure 8-3
Aeronautical Information Manual, paragraph 4-3-3
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Next Week
Airspace & Navigation - Tracking a VOR
How do you avoid reverse sensing when tracking a VOR? How do you correct for wind drift?
The CDI can give useful guidance only when the selected course and indication agree with the flight you intend. Next week, we'll connect that setup to small, disciplined wind corrections that keep the airplane tracking smoothly.