KAHN Athens GA — Instrument Checkride Guide

What kind of airport is KAHN and what is its IFR environment?

Athens/Ben Epps Airport (KAHN) serves Athens, Georgia — home of the University of Georgia — located approximately 65 nm east-northeast of Atlanta. Elevation is 808 ft MSL, notably higher than the coastal plain airports of south Georgia. The airport operates Class D airspace when the control tower is staffed from 0800 to 2000 local. An approach/departure control facility serves KAHN on 132.475 MHz from 0615 to 2200; outside those hours, IFR services are provided through the en route system.

KAHN's Piedmont foothills location creates a meaningfully different IFR environment compared to flat-terrain airports. MEAs on airways approaching from the north are elevated to account for the rising terrain toward the Blue Ridge Mountains, and missed approach procedures on some runway ends require prompt climbing turns. Per 14 CFR 91.177, no person may operate an aircraft below the applicable minimum IFR altitude except during takeoff or landing — understanding why the minimum altitudes are what they are at KAHN is an evaluable knowledge area.

What instrument approaches are published at KAHN?

KAHN offers a solid non-precision and limited precision approach suite, sourced from AirNav.

The ILS RWY 27 requires either DME or GPS to substitute for DME — confirm your aircraft's equipment before filing. LOC-only minimums are published separately and carry a higher DA. The VOR RWY 02 is a notable approach because it leads to the shorter runway (3,995 ft); the DPE may use this approach to generate a discussion about landing distance, go-around planning, and MDA versus DA distinctions.

What is the runway configuration at KAHN?

KAHN operates two asphalt runways. Runway 09/27 is the primary instrument runway at 6,122 ft, adequate for typical general aviation instrument training. Runway 02/20 at 3,995 ft is considerably shorter and limits aircraft type and weight for approaches terminating on that runway end.

The shorter runway 02/20 demands attention during approach briefing. At 3,995 ft, wet or contaminated surface conditions meaningfully reduce the margin for error on landing. A go-around decision must be made early — not at the threshold. This is an ACS-evaluable judgment call.

What frequencies does KAHN use?

KAHN uses an ASOS rather than a full ATIS — weather information is broadcast continuously but does not carry an alphabetic identifier. Pilots should note the observation time and confirm currency before filing. Ground and clearance delivery share 121.8 MHz; contact ground for your IFR clearance and taxi instructions before engine start.

What terrain and weather should instrument pilots expect at KAHN?

Athens sits in the Georgia Piedmont, where the land surface rises gradually from approximately 700 ft MSL in the city to over 1,500 ft MSL within 30 nm to the north and northeast as the Blue Ridge foothills begin. Airways and instrument procedures that route toward or from the north have elevated MEAs to maintain the required obstacle clearance. The DPE at KAHN may ask you to calculate the MEA on a specific airway segment and explain why it differs from the MOCA.

Radiation fog forms readily in the Athens area during autumn and winter, particularly in low-lying areas near the North Oconee River and its tributaries. These fog events can reduce visibility to near zero but often dissipate by late morning as surface heating increases. Pilots planning early IFR departures should monitor ASOS and obtain current PIREPs from Atlanta Center or adjacent airports.

Summer convective activity at Athens follows the classic southeast pattern: surface heating builds cumulus development through the afternoon, with scattered to numerous thunderstorms from 1500 to 2100 local on typical summer days. Cells near Athens can produce localized wind shear on approach, particularly from the west where the terrain is slightly lower and flow accelerates. The National Weather Service Peachtree City (FFC) issues forecasts and warnings for the Athens area.

What should you expect on an instrument checkride at KAHN?

KAHN offers a well-rounded Class D environment with terrain context that most coastal-plain and flat-terrain airports cannot provide. The DPE will likely discuss MEAs, minimum obstruction clearance altitudes, and why filed altitudes must account for terrain — this is ACS Area II (cross-country flight planning) territory.

The ILS or LOC/DME RWY 27 is the primary precision approach. Because the procedure requires DME or GPS, the DPE may use it as a springboard for a discussion of IFR equipment requirements under 14 CFR 91.205 and GPS substitution rules under AIM 1-1-17. Brief the procedure including the DME or GPS requirement before beginning.

For the non-precision segment, the DPE may assign the RNAV (GPS) RWY 02 or VOR RWY 02, which terminate on the shorter runway. Be prepared to explain your go-around decision criteria, landing distance calculation, and the difference between MDA and DA under 14 CFR 91.175. The DPE may specifically ask why an MDA approach requires level flight at MDA rather than a continuous descent — CDFA technique is a valid discussion point.

Holding at KAHN may involve fixes on the approach or nearby VOR. The terrain context adds a layer to holding discussions: if the published hold altitude is lower than the published MEA on the inbound airway, understand why that is permissible within the protected holding airspace.

Practice Questions

1. You are cleared for the ILS or LOC/DME RWY 27 at KAHN. Your ILS receiver is operative but your DME is inoperative. Your GPS is IFR-certified with WAAS. Can you fly this approach, and what regulation or AIM guidance governs the GPS substitution for DME?

2. En route to KAHN from the north, ATC assigns you an altitude of 4,000 ft. The MEA on your airway is 4,000 ft. The MOCA is 2,600 ft. Explain the difference between MEA and MOCA and when you may fly at MOCA under 14 CFR 91.177.

3. The DPE assigns the VOR RWY 02 approach. The runway is 3,995 ft long and you calculate your landing distance at 2,800 ft. What factors increase that number in actual IFR conditions, and at what point in the approach do you commit to a go-around?

4. KAHN approach closes at 2200 local. You arrive at 2215 IFR. Who provides your approach service, on what frequency, and what type of approach can you expect?

5. After a missed approach on the ILS RWY 27, the published missed approach requires a climbing right turn. Explain why the missed approach is right-turn rather than left-turn given the runway orientation, and what terrain consideration likely drives that design.

Frequently Asked Questions

Q: What instrument approaches are published at KAHN?

KAHN publishes an ILS or LOC/DME to runway 27, RNAV (GPS) approaches to runways 02, 09, 20, and 27, and a VOR approach to runway 02. The ILS RWY 27 is the only precision approach. DME or GPS is required for the ILS procedure.

Q: What is the airspace class at Athens/Ben Epps?

KAHN operates inside Class D airspace when the tower is open (0800–2000 local). Outside those hours the airspace reverts to Class E and CTAF 126.3 governs traffic. No ATC clearance is required to enter Class D — only two-way radio communication.

Q: What is the ATIS frequency at KAHN?

KAHN weather is broadcast by an ASOS on 132.875 MHz. Tower operates on 126.3 MHz from 0800 to 2000 local. Ground and clearance delivery share 121.8 MHz. Approach and departure services are on 132.475 MHz from 0615 to 2200.

Q: What runways are available at KAHN?

KAHN has two runways: 09/27 (6,122 ft × 100 ft, asphalt/grooved) and 02/20 (3,995 ft × 100 ft, asphalt). Runway 09/27 is the primary ILS runway. Runway 02/20 at under 4,000 ft is short by IFR training standards — most instrument approaches terminate on runway 09/27.

Q: What terrain hazards should pilots be aware of near KAHN?

Athens sits in the Georgia Piedmont foothills region. Terrain rises significantly to the north and northeast as the Blue Ridge Mountains begin. IFR pilots departing to the north must observe MEAs that account for higher terrain, and missed approach procedures on some runways require prompt climbing turns to avoid terrain.

Q: What weather hazards should instrument pilots expect at KAHN?

The Athens area experiences radiation fog in autumn and winter, often clearing by mid-morning. Summer brings afternoon convective storms driven by surface heating and Gulf moisture. The Piedmont location means weather can differ significantly from the lowlands only 30 miles south — always obtain current PIREPs.

Q: Who provides approach control services at KAHN?

An approach/departure control facility serves KAHN on 132.475 MHz from 0615 to 2200 local. Outside those hours, pilots file IFR through the en route system and may receive services from Atlanta Center (ZTL).

Sources

• AirNav — KAHN Airport Information
• SkyVector — KAHN Instrument Approach Procedures
• 14 CFR 91.175 — Takeoff and Landing Under IFR (Cornell LII)
• 14 CFR 91.177 — Minimum Altitudes for IFR Operations (Cornell LII)
• 14 CFR 91.205 — IFR Equipment Requirements (Cornell LII)
• FAA Instrument Flying Handbook FAA-H-8083-15B
• NWS Peachtree City (FFC) — Terminal Forecasts

This article was researched from FAA primary sources (ACS, FAR/AIM, Advisory Circulars, Instrument Flying Handbook), approach procedure data from AirNav and SkyVector, and citing current 14 CFR Part 91 — drafted by MockDPE. Last updated: May 2026. If you spot an inaccuracy, email corrections@mockdpe.org.