World War II (1941–1945)

At the height of the Second World War, the RCAF selected a relatively level farming area at the head of navigable waters in the Saguenay River to be the site of several aerodromes during 1941. This area was considered useful for RCAF purposes, given the amount of cleared land in the region, its relative geographic isolation and proximity to the deepwater port of Port-Alfred, as well as access to the adjacent railway network. Construction began that summer and continued through the winter and following spring on RCAF Station St-Honoré near Chicoutimi and RCAF Station Bagotville in La Baie.

The base at St-Honoré opened in June 1942, followed by Bagotville on 17 July 1942; St-Honoré being operated as a sub-base to Bagotville. RCAF Station Bagotville hosted the 1 Operational Training Unit (1 OTU) which trained pilots from Commonwealth nations under the British Commonwealth Air Training Plan (BCATP), as well as the 130 Panthère Squadron, which was an operational RCAF air defence unit intended to protect the massive Alcan aluminum smelter in nearby Arvida (one of the largest industrial facilities in Canada at the time), and associated hydro-electric facilities in the Saguenay region. During 1942 Quebec's coastal regions along the lower Saint Lawrence River and Gulf of Saint Lawrence were witnessing the Battle of the St. Lawrence as German U-boats were sinking Canadian shipping throughout the area. RCAF Station Bagotville was established, along with RCAF Station Mont-Joli to counter the U-boat menace to Canada's war effort and placate local fears.

Early training aircraft operating from RCAF Station Bagotville included Curtiss Kittyhawk, Westland Lysander, North American Harvard and Hawker Hurricane. 130 Squadron, which was deployed at the base to provide regional air defence to key industrial facilities, used the motto "Défendez le Saguenay", which was later adopted by the entire base. On 1 August 1942 the 12 Radar Detachment was deployed to provide air traffic control. On 24 October 1943 129 Squadron took over from 130 Squadron as the regional air defence unit; two months later in December 129 Squadron was redeployed from Saguenay and the 1 OTU was retasked with regional air defence duties.

Toward the end of the war, RCAF Station Bagotville began to decline in activity as the requirement for BCATP training decreased. On 28 October 1944 the 1 OTU ceased operations, followed by the 12 Radar Detachment. In 29 pilot training courses given by 1 OTU at RCAF Station Bagotville (and St-Honoré), 940 pilots graduated and 41 were killed during training.

In November 1944 1 OTU was disbanded and the closure of RCAF Station Bagotville and its secondary facilities at RCAF Station St-Honoré was announced; they were closed and mothballed on 5 January 1945.

Aerodrome

In approximately 1942 the aerodrome was listed as RCAF Aerodrome - Saguenay, Province of Quebec at 48°20′N 71°00′W with a variation of 23 degrees E and elevation of 510 ft (160 m). Three runways were listed as follows:

Cold War (1951–1993)

The escalating tensions brought about by the Cold War and the Korean War saw RCAF Station Bagotville reactivated on 1 July 1951 as a training base for air defence squadrons deploying in support of NATO's defence of western Europe from the Warsaw Pact. Two squadrons, 413 and 414, initially operated at Bagotville using De Havilland Vampire and F-86 Sabre aircraft ( * logs from 413 during this period detail no Vampires, only Sabres, Harvard, T33 and Expeditor). During this time squadrons were deployed on Operation Appletree visiting a number of cities and towns in the Maritimes, Quebec and Ontario, and to the Toronto CNE to promote the RCAF. 2 Flying Officers were lost; F/O Robert Verne "Hank" Snow and Robert "Mongoose" Moncrieff. There were other incidences of engine failures requiring emergency procedures. On 7 March 1953 both squadrons deployed to Europe on the month long Leapfrog III and the base was quiet through the rest of that year.

No. 431 (Fighter) Squadron re-formed at RCAF Station Bagotville on 18 January 1954 using the Sabre. The squadron was formed on a temporary basis until there were enough new CF-100s available to fulfill RCAF squadron needs and was deactivated on 1 October 1954. Also in 1954 432 and 440 squadrons were transferred to RCAF Station Bagotville flying the CF-100 Canuck all-weather fighter. In 1957 440 squadron deployed to RCAF Station Zweibrücken in West Germany and on 1 May 1957 413 squadron returned to the base flying the Canuck. That year also saw the CT-133 Silver Star arrive at the base as a training aircraft.

In 1961, 413 and 432 squadrons disbanded and 416 Squadron was formed at Bagotville flying the CF-101 Voodoo. 416 squadron was moved to RCAF Station Chatham the following year in 1962. In summer of 1962 the 425 Alouette squadron transferred to RCAF Station Bagotville flying the Voodoo; its aircraft were modified to carry the AIR-2 Genie - a nuclear-tipped air-to-air missile, with nuclear warheads being stored at Bagotville until the weapon's decommissioning in the early 1980s.