Sperry 60-Inch Searchlight

Sperry 60-Inch Searchlight

Battery519IDA
All 60 inch Carbon Arc Searchlights are all 60 years old or older. Ten thousand were made, mostly ending up in Europe for WWII. These lights were built by the General Electric, and Sperry Gyroscope for the U.S. Military as Anti-Aircraft Searchlight Units. Their original purpose was to aide World War II anti-aircraft gunnery crews in spotting enemy aircraft during night-time air attacks. These lights have not been built since 1944. They no longer had a military use after the war having been replaced by the invention of radar. The lights were sold off to civilians who created the night Outdoor Advertising Searchlight Industry. The beam is made by 2 carbon rods, one positive and one negative, arching within the focal point of a 60 inch parabolic mirror. As the rods "burn" they are automatically fed into the light. The rods last approximately 2 hours and are then replaced. The flame that is visible during the lights operation, is not actually the source of the light, rather, it is a by-product, produced as a result of the electricity arcing between the 2 rods. Military Searchlights were produced from 1932 to 1944 by Sperry and General Electric at a cost of $60,000 each! Light Source: 1 inch Carbon Arc (no light bulb!) Power: 78 Volts @ 150 Amps Candle Power: 800,000,000 (800 million) Effective Beam length: 5.6 miles Effective Beam visibility: 28~35 miles Mirror Type: Parabolic Glass Weight Totals: 75 lbs Brass Rhodium Coated Mirror: 180 lbs GENERATOR: Generator Power: 15 KWV nominal - 16.7 KWV max.(15,000~16,700 watts D.C.) Powered By: Inline 6 cyl. "Hercules" Flathead Engine Generator Engine Fuel: Gasoline (can also be run using Kerosene or Gasohol) 26 gallon capacity Under searchlight load burns about 2.6 gallons per hour Combined Weight: 6,000 pounds (3 tons, or the weight of 3 Ford Mustangs combined!) #60Inch_Searchlight #Army #Artillery #Battery #Battery_519 #Bunker #Cantonment #Casemate #Coast_Artillery #FMHA #Fort #Fort_Miles #HDD #Military #Searchlight #Sperry #Sperry_60Inch #Sperry_60Inch_Searchlight #WW2 #WWII
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