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Data source: OurAirports (2026-09-01 Snapshot) · Methodology & Verification →

Tainan International Airport / Tainan Air Base

Tainan (Rende), Tainan City (Taiwan)

IATA: TNN ICAO: RCNN

Longest Active Runway

10,007 ft

3,050 meters

Field Elevation

63 ft

19 m MSL

Runway Inventory

2 active

Lighted / Paved

Coordinates & Class

22.9504°, 120.2060°

LARGE AIRPORT

🏆

Multi-Universe Rankings & Statistical Standing

Ranking Universes Guide →

RunwayFacts Published Dataset

#549 of 650

In curated primary commercial index

Global Commercial Universe

#908 of 7558

Top 12.0% percentile worldwide

National Standing (Taiwan)

#4 in TW

#6 of 18 in full national registry

vs Large Airport Median

+0.1%

Compared to 10,000 ft baseline

💡 Statistical Statement: Tainan International Airport / Tainan Air Base's longest active runway measures 10,007 ft (3,050 m). Within RunwayFacts' published index of 650 aerodromes, it ranks #549. Across the broader global dataset of 7558 commercial facilities, it ranks #908 worldwide (Top 12.0%) and #4 nationally in Taiwan.

🔬 Operational & Aerodrome Engineering Comparative Analysis

Comparative aviation metrics evaluated against regional and global physical operational criteria.

ICAO Code 4D / 4E Heavy Intercontinental

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Elevation & Atmospheric Density

Lowland / Coastal Basin Aerodrome

Positioned at 63 ft (19 m MSL), this aerodrome operates near standard International Standard Atmosphere (ISA) sea-level air density. High ambient air pressure provides optimal turbine thrust conversion, maximum wing lift coefficients, and minimal ground roll distance requirements, allowing long-haul flights to depart at maximum structural takeoff weight limits without atmospheric density penalties.

🧭

Regional Density & Alternates (100 NM)

3 Qualifying Aerodromes in Vicinity

Within its 100 NM cluster of 3 neighboring aerodromes, Tainan International Airport / Tainan Air Base is supported by major regional alternatives. Notably, Kaohsiung International Airport (KHH) lies just 23.8 NM away with a 10,335 ft runway, offering reliable operational redundancy for commercial diversions and congested airspace rerouting.

✈️

Fleet Compatibility & Ground Roll

Primary Runway: 10,007 ft (3,050 m)

At 10,007 ft (3,050 m), the primary runway comfortably accommodates mid-to-large twin-aisle widebody transports (such as the Boeing 787-9 and Airbus A330-900) as well as maximum-range narrowbody transcontinental configurations (Airbus A321XLR and Boeing 737 MAX 9) under typical atmospheric conditions.

🛫 Physical Runway Inventory & Surface Engineering

Runway Designator	Length (ft / m)	Width (ft / m)	Surface Material	Lighting	Status
18R/36L	10,007 ft (3050m)	148 ft (45m)	`Concrete (CON)`	✅ Lighted	✅ Active
18L/36R	10,007 ft (3050m)	148 ft (45m)	`Concrete (CON)`	✅ Lighted	✅ Active

🧭 Comparative Aerodromes (100 NM Radius, ≥5,000 ft Paved)

Great-circle Haversine spatial proximity matching for commercial facilities with paved runway capacity within 100 NM.

Aerodrome Name	IATA	Distance	Longest Runway	Lighting
Kaohsiung International Airport (Kaohsiung (Xiaogang))	`KHH`	23.8 NM (44.1 km)	10,335 ft	✅ Lighted
Penghu Magong Airport (Huxi)	`MZG`	48.9 NM (90.6 km)	9,843 ft	✅ Lighted
Taichung International Airport / Ching Chuang Kang Air Base (Taichung (Qingshui))	`RMQ`	82.1 NM (152 km)	12,000 ft	✅ Lighted

🛡️ Data Provenance & Verification Metadata

Source Dataset: OurAirports Open Aviation Database

Snapshot Version: 2026-09-01

Dataset Integrity: Cryptographic SHA-256 Checksum Verified & Fail-Closed Schema Inspected

Source Verification: Source-reported registry data

Read Complete Methodology & Verification Protocol → GET /api/airport/tnn.json ↗