Cape Race LORAN-C transmitter

The Cape Race LORAN-C transmitter was a LORAN-C transmitter at Cape Race, Newfoundland and Labrador, on Canada's eastern seaboard.

Cape Race LORAN-C Mast (1st)
Location within Newfoundland
Record height
Tallest in Canada from 1965 to 1976[I]
Preceded byCHCH Television Tower
Surpassed byCN Tower
General information
StatusDestroyed
TypeMast radiator insulated against ground
LocationCape Race, Newfoundland and Labrador, Canada
Coordinates46°46′32.58″N 53°10′27.65″W
Completed1965
DestroyedFebruary 2, 1993
Height411.48 m (1,350.00 ft)
Design and construction
Main contractorUS Coast Guard
Cape Race LORAN-C Mast (2nd)
General information
StatusComplete
TypeMast radiator insulated against ground
LocationCape Race, Newfoundland and Labrador, Canada
Coordinates46°46′32.58″N 53°10′27.65″W
Completed1993
Height260.3 m (854.00 ft)
Design and construction
Main contractorUS Coast Guard

The Cape Race LORAN-C transmitter was used as an antenna tower until February 2, 1993. It was a 411.48 m (1350 ft) tall guyed mast, built in 1965. This mast was the tallest structure in Canada until the construction of the CN Tower in Toronto, and remained the second-tallest structure until its collapse on February 2, 1993. The collapse was the result of a fatigue failure of the eyebolt head in a compression cone insulator on a structural guy-wire. This failure caused swing-in damage that resulted in the tower's collapse. The tower was replaced by a 260.3 meter (854 ft) tall guyed mast, insulated against the ground.

The Cape Race LORAN-C transmitter was used until 1993 as part of the LORAN-C Chain GRI 9930 and worked with a transmission power of 1800 kilowatts. Today the Cape Race LORAN-C transmitter acts as the Yankee Secondary Transmitter of the Canadian East Coast LORAN-C chain (GRI 5930) and as the Whiskey Secondary of the Newfoundland East Coast LORAN-C chain (GRI 7270).

The transmission power for the Canadian East Coast LORAN-C chain is 1000 kW, and for the Newfoundland East Coast LORAN-C the transmission power is 500 kW.

See also

  • "Sample Projects". Varcon Inc. Archived from the original on 2011-03-19. Retrieved 2006-11-23.
  • Cape Race LORAN-C Transmission Mast (1st), Portugal Cove South - SkyscraperPage.com
  • Cape Race LORAN-C Transmission Mast (2nd), Portugal Cove South - SkyscraperPage.com
  • LORAN-C Sendemast Cape Race (1965) at Structurae
  • LORAN-C Sendemast Cape Race (1993) at Structurae
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