Groton airspace gets a slight resize.
Published Date: 7/31/2026
Rule
Summary
This action amends Class D and Class E airspace over Groton, CT. This action reduces the dimensions of the Groton, CT, Class D airspace to a 4.2-mile radius of the airport, excluding that airspace within a 1-mile radius of Elizabeth Field, Fishers Island, NY. This action updates the geographic coordinates for the Groton-New London Airport, Groton, CT, and the Elizabeth Field Airport, Fishers Island, NY, in the associated airspace legal descriptions. This action also updates the airport name for the Elizabeth Field Airport in the Groton, CT Class D airspace legal description. This action also replaces "Airport/Facility Directory" in the Groton, CT Class D airspace legal description with "Chart Supplement" to comply with current FAA guidance. This action also removes the exclusions of adjacent Class E airspace areas from the Groton, CT and Fishers Island, NY Class E airspace legal descriptions to comply with current FAA guidance.
Analyzed Economic Effects
2 provisions identified: 0 benefits, 2 costs, 0 mixed.
Groton Class D Airspace Shrinks
The FAA reduces the Groton-New London Airport Class D airspace from a 5-mile radius to a 4.2-mile radius, while still excluding airspace within a 1-mile radius of Elizabeth Field. This change takes effect on October 29, 2026, and could cause, at most, de minimis compliance costs or minor flight rerouting for aircraft operators who choose to navigate around the controlled airspace.
Class E Boundary Changes at Fishers Island
The FAA amends Class E airspace legal descriptions for Fishers Island, NY and Groton, CT by removing exclusions of adjacent Class E areas and setting new radii (Fishers Island: a 6-mile radius), effective October 29, 2026. The rule notes these changes are expected to result in, at most, de minimis costs from compliance or minor flight rerouting for operators who navigate around controlled airspace.
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