Cape Race LORAN-C transmitter
| 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°WCoordinates: 46°46′32.58″N 53°10′27.65″W / 46.7757167°N 53.1743472°W |
| Completed | 1965 |
| Destroyed | February 2, 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 | Complete |
| 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 |
| Height | 260.3 m (854.00 ft) |
| Design and construction | |
| Main contractor | US Coast Guard |
The Cape Race LORAN-C transmitter is a LORAN-C transmitter at Cape Race, Newfoundland and Labrador, on Canada's eastern seaboard.
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.