Lighthouses and Lightships With Fog Signals for South Atlantic and Gulf Coast (1951)

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3- Diaphone
2- Horn

Lighthouses with Audible Fog Signals

St. Johns Lightship FL HORN, diaphragm, air; blast 5 sec., silent 25 sec. N30 23.500 W081 18.000
Savannah Lightship GA HORN, diaphragm, air; blast 2 sec., silent 18 sec. N31 56.600 W080 39.800
Diamond Shoal Lightship NC DIAPHONE, two-tone, air; blast 5 sec., silent 55 sec. N35 05.300 W075 19.700
Frying Pan Shoal Lightship NC DIAPHONE, two-tone, air; blast 4 sec., silent 26 sec. N33 28.000 W077 33.800
Chesapeake Lightship VA DIAPHONE, two-tone, air; blast 3 sec., silent 27 sec. N36 58.700 W075 42.200