Cartwright Air Station

Cartwright Air Station (ADC ID: N-27) is a closed General Surveillance Radar station. It is located 145.2 mi east-northeast of CFB Goose Bay, Newfoundland and Labrador. It was closed in 1968.

History
The site was established in 1953 as a General Surveillance Radar station, funded by the United States Air Force. It was used initially by the Northeast Air Command, which stationed the 922d Aircraft Control and Warning Squadron on the station on 1 October 1953. The station functioned as a Ground-Control Intercept (GCI) and warning station. As a GCI station, the squadron's role was to guide interceptor aircraft toward unidentified intruders picked up on the unit's radar scopes.

It was equipped with the following radars:
 * Search Radar: AN/FPS-3C, AN/FPS-502, AN/FPS-20A, AN/FPS-87A, AN/FPS-93A
 * Height Radar: AN/TPS-502, AN/FPS-6B, AN/FPS-90

The station was re-assigned to the USAF Air Defense Command on 1 April 1957, and was given designation "N-27". In 1963, the site was connected to the Manual Data Center at Goose AFB.

In addition to the main facility, Cartwright operated several AN/FPS-14 manned Gap Filler sites:
 * Cut Throat Island Air Station   (N-27A): 54.49639°N, -57.13333°W
 * Spotted Island Air Station      (N-27B): 53.51472°N, -55.81444°W
 * Fox Harbour Air Station         (N-27C): 52.37°N, -55.66444°W

On 18 June 1968, the USAF transferred control of the site to the Canadian Forces. It was inactivated and closed. Today, the remains of the station are abandoned.

USAF units and assignments
Units:
 * 922d Aircraft Control and Warning Squadron, Activated at Grenier AFB, New Hampshire 26 May 1953
 * Moved to Cartwright Air Station, 1 October 1953
 * Discontinued 18 June 1968

Assignments:
 * 4707th Defense Wing (ADC), 26 May 1953
 * Northeast Air Command, 1 October 1953
 * 4732d Air Defense Group (ADC), 1 April 1957
 * Goose Air Defense Sector, 1 April 1960
 * 37th Air Division, 1 April 1966-18 June 1968

North Warning System
A long Range AN/FPS-117 surveillance radar site was built 13.5 mi south of Cartwright Air Station in November 1998 as part of the North Warning System to cover any Long Range Radar surveillance gaps. The new site (LAB-6) consists of a radar towers, communications facility, and storage and tunnel connected buildings for personnel.