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  • Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.
Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.

Moderator: GOLDEN-ARM

 #8690  by Justin B
 
So how will the HEP affect the operation of the locomotive? Will it handle just like a normal SD70MAC or more akin to a F40 with the prime mover in run-8 whenever HEP is needed?

Also, does anyone know how much hp the HEP will require?

 #8851  by DutchRailnut
 
The HEP does not make the engine run at notch 6 like a F40 but since the SD70macPH is running an inverter the speed of the engine will run some were from Notch 3 to notch 5 depending on load of HEP system.
the 4300 hp rating will drop about 1200 hp hith the HEP at full load (800Kw) but still leaving 3100 for traction

 #10417  by DutchRailnut
 
the box over front end of radiator section is a winterezation hatch. it deflects hot air from radiators to engineroom section st keep it A pressurized and B free of snow infiltration. all ARR's SD70's have it.

 #10897  by Railpac
 
No, no, I mean the space between the radiators and the end of the locomotive, that feature is not on normal SD70MACs, I knew that the latter was a winterization hatch.