RCAF Station Aylmer

The closure was a result of post-war military consolidation and budget reductions by the Department of National Defence. The vast training infrastructure created for the British Commonwealth Air Training Plan (BCATP) was no longer necessary in the post-war era, and the base was declared surplus.

The site has been extensively redeveloped. In 1963, the Government of Ontario purchased a large portion of the former base to establish the Ontario Police College (OPC), which is the primary occupant today. Many of the original WWII-era buildings, including several hangars, barracks, and the parade square, are still standing and have been incorporated into the college's campus for training purposes. The remainder of the property was developed into the 'Air-Park' industrial area, with streets named in honor of its aviation history (e.g., Spitfire Street, Hurricane Road). The original runways are no longer intact; they have been either removed, built over, or converted into roads for the college and industrial park.

RCAF Station Aylmer was a critical installation of the British Commonwealth Air Training Plan (BCATP) during World War II. Opened on July 3, 1941, it was home to No. 14 Service Flying Training School (SFTS). The school was responsible for the advanced flight training of thousands of pilots from across the Commonwealth, including Canada, the United Kingdom, Australia, and New Zealand. Pilots trained here on aircraft such as the North American Harvard and the Avro Anson before being assigned to operational squadrons. The station was a massive, self-contained facility with six large hangars, barracks for over 2,000 personnel, and extensive training infrastructure. After the war, from 1950 to 1961, it was repurposed as RCAF Station Aylmer, home to No. 1 Technical Training School, where it trained ground crew in various support trades.

There are no known plans or prospects to reopen the site as a functional airport. The original aviation infrastructure, particularly the runways, has been dismantled or repurposed, and the land is fully utilized by the Ontario Police College and various industrial businesses. The ICAO identifier CA-0004 is a historical reference and does not correspond to an active, certified aerodrome.