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The Cape Race LORAN-C transmitter was a LORAN-C transmitter at Cape Race, Newfoundland and Labrador, Canada.
| Cape Race LORAN-C Mast (1st) | |
|---|---|
 | |
  Location within Newfoundland | |
| Record height | |
| Tallest in Canada from 1965 to 1976[I] | |
| Preceded by | CHCH Television Tower |
| Surpassed by | CN Tower |
| General information | |
| Status | Destroyed |
| Type | Mast radiator insulated against ground |
| Location | Cape Race, Newfoundland and Labrador, Canada |
| Coordinates | 46°46′32.58″N 53°10′27.65″W / 46.7757167°N 53.1743472°W |
| Completed | 1965 |
| Destroyed | 2 February 1993 |
| Height | 411.48 m (1,350.00 ft) |
| Design and construction | |
| Main contractor | US Coast Guard |
| Cape Race LORAN-C Mast (2nd) | |
|---|---|
 | |
| General information | |
| Status | Demolished |
| Type | Mast radiator insulated against ground |
| Location | Cape Race, Newfoundland and Labrador, Canada |
| Coordinates | 46°46′32.58″N 53°10′27.65″W / 46.7757167°N 53.1743472°W |
| Completed | 1993 |
| Destroyed | 20 October 2012 |
| Height | 260.3 m (854.00 ft) |
| Design and construction | |
| Main contractor | US 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 CKX TV-Craig broadcast tower at Hayfield, Manitoba equalled this tower in height when it was erected in 1973.
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. The Cape Race LORAN-C transmitter acted 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 was 1000 kW, and for the Newfoundland East Coast LORAN-C the transmission power was 500 kW. The mast has been demolished.
See also
editExternal links
edit- "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
- Video of the demolition