Download coordinates as: Allan's Island Radar Station (Cinco) was a United States Army General Surveillance Ground Radar Early Warning Station in the Dominion of Newfoundland.

[1] It was built during World War II and responsible for monitoring air traffic from Naval Station Argentia to Gander and into the Gulf of St.

The site was established in 1942 as a United States Ground Radar Early Warning Station, funded by the United States Army, which stationed the 685th Air Warning Squadron on the site under operational control of Newfoundland Base Command at Pepperrell Air Force Base.

[1] The station was assigned to Royal Canadian Air Force in November 1944, and was given designation "No 40 RU".

[5] Units: Assignments: This article incorporates public domain material from the Air Force Historical Research Agency