
When pilots circle above Nantucket Island preparing to land, understanding key operational information becomes crucial for ensuring a safe touchdown. Nantucket Memorial Airport (ACK), located in Nantucket, Massachusetts, serves as the island's primary aviation hub. This comprehensive guide examines the airport's operational characteristics, navigation details, and safety considerations for pilots and aviation enthusiasts.
Airport Overview
Nantucket Memorial Airport (IATA: ACK, ICAO: KACK) is a public-use facility serving Nantucket Island. With an elevation of 47 feet (14 meters), the airport features two runways: 06/24 measuring 6,303 feet (1,921 meters) and 15/33 at 3,000 feet (914 meters). The facility offers comprehensive general aviation services including fueling, maintenance, and ramp leasing.
Key Navigation Data
- Magnetic Variation: 14.2°W (annual change 0.1°E, effective January 2025)
- Clearance Delivery: 119.375 MHz
- Ground Control: 132.5 MHz
- Tower Frequency: 118.3 MHz
- ATIS: 127.5 MHz
Runway Specifications
Runway 06-24: Pavement classification S-75, D-170, 2D-280 with PCR value 770 F/A/X/T.
Runway 15-33: Pavement classification S-60, D-85, 2D-155 with PCR value 430 F/A/X/T. This runway features a 0.3% upward slope.
Safety Protocols
The airport emphasizes strict runway safety procedures, requiring pilots to fully read back all runway holding instructions. Particular vigilance is mandated regarding runway crossing clearances to prevent potential conflicts.
LAHSO Operations
Land and Hold Short Operations (LAHSO) are permitted with approved distances of 624 feet for Runway 33 and 45 feet for Runway 6. Pilots must thoroughly assess aircraft performance and weather conditions to ensure safe operations within LAHSO limitations.
Facility Infrastructure
The airport maintains comprehensive facilities including:
- Fire station
- Ramp areas
- Fixed Base Operator (FBO) services
- General aviation zones
- Terminal building
- Tenant GA areas
- Control tower
Operational Notices
The NE-1 area will be closed from December 25, 2025 through January 22, 2026 for scheduled maintenance.
Community Impact
Nantucket Memorial Airport serves a vital role in island connectivity, providing essential air transportation for residents and visitors. The facility operates under strict FAA oversight, with ongoing maintenance and upgrades to accommodate increasing aviation demands.
Conclusion
As a critical regional airport, Nantucket Memorial Airport requires pilots to thoroughly familiarize themselves with navigation details, runway specifications, and safety procedures before approach and landing. Proper preparation and adherence to protocols ensure safe operations and quality passenger experiences.