Aviation History of The International Ice Patrol
- 6 February 1946 - A PBY-5A makes the first International Ice Patrol reconnaissance flight.
- 24 February 1946 - Two PB4Y-1s arrive in Argentia, Newfoundland to become the first dedicated Ice Patrol aircraft.
- 01 July 1946 - First helicopter deployments in International Ice Patrol. An HNS-1 helicopter, Sikorsky R-4, CGNR 39047, flew from USCGC Northwind (WAGB-282) off the Greenland coast. The pilot was Aviation Pilot First Class John A Olsen, USCG; USCG Aviator Number 646, AMM1 Richard A. Dowst, USCG flew as observer.
- 1947 - The PB-1G becomes the Ice Patrol aircraft.
- 1948 - Camera-equipped PB-1G begins an iceberg census off Baffin Island completed in 1949.
- 1949 - Aircraft become the sole reconnaissance tools for the first time.
- 1956 - Unsuccessful tests to identify icebergs by marking with dye markers, commercial dye, and used motor oil.
- 1958 - Last ice patrol by a PB-1G.
- 1959 - R5Ds replace PB-1Gs.
- June 1959 - Unsuccessful iceberg demolition experiments with magnesium and thermite incendiary bombs.
- May 1960 - Unsuccessful iceberg demolition experiments dropping high-explosive bombs from UF-2G.
- 24 May 1962 - First Ice Patrol by HC-130B.
- 1963 - R5Ds replaced by Doppler Navigation System equipped HC-130Bs.
- 1964 - First successful use of Airborne radiation thermometer to detect changes in surface water temperature.
- 1967 - First use of microwave radiometer to differentiate RADAR contacts as ship or iceberg.
- 30 April 1970 - The ice reconnaissance detachment moved from Argentia to CFB Summerside in Prince Edward Island.
- 1971 - Side-looking airborne RADAR evaluation began.
- 1973 - Inertial Navigation System installed on Ice Patrol aircraft.
- 1973 - The ice reconnaissance detachment moved to St. John's, Newfoundland.
- 1982 - The ice reconnaissance detachment relocated to Gander, Newfoundland.
- 1989 - The ice reconnaissance detachment moved back to St. John's, Newfoundland.
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