1942 World War II anti aircraft 35 kW DC Generator Dyno on original chassis

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

1942 World War II anti aircraft 35 kW DC Generator Dyno on original chassis :
$585.00

Beautiful World War 2 anti aircraft DC DynoThe Dyno is still mounted on its original 4 wheel dolly.This unit came out of the desert and has little to no rust.This unit is located in Washington state (lake Stevens)

THE HERCULES JXD ENGINE
The engine used to power the GE and Sperry generators was made by the Hercules Engine Company who supplied nearly a million engines to the US military and allied armed forces during 1941-1945. Hercules engines were used in Jeeps, 2.5 and 5-ton trucks and generator sets.
The JXD version of the Hercules engine used in searchlight power plants is a straight six side valve gasoline engine. The engine displacement is 5240cc (320 cu in). It is rated at 110hp @ 3000rpm
The engine uses about 2.6 gallons (10 litres) an hour when running the searchlight.
1hp = 0.75 KW so the engine is capable of putting out 82.5 KW at 3000 rpm
The generator runs at 1250 rpm and power output is approximately proportional to RPM therefore the engine output power at 1250 rpm would be about 35KW
The generator output is 15KW (max 16.7KW). Under normal running conditions the light runs at 93 volts (at the generator terminals) at 150 amps @ 14KW
The efficiency of a typical DC generator is 75%. That would require 20 KW of engine power when there is 35KW available at 1250rpm. The whole design of the searchlight power plant is very conservatively rated since it is idling along at less than one quarter the rated power of the engine.
The searchlights cost $60,000 in 1940. Using inflation figures from 1940 to 2005 - that is equivalent to $830,000 in 2005 - no wonder they are such a magnificent piece of 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

Feel free to call with any questions or for more pics.

JT 904-874-6443

Also see our other unit in operation on Facebook : Jacksonville Searchlights