SL 144 - FresnoSubber/Fresno-and-Co.-Trainbuild-Tomfuckery GitHub Wiki

Beginning in 1974, to cater to the industrial market that their popular tonners used to dominate (namely the 44 and 70 tons), GE conceived their SL series for both domestic and international use.

The SL-144 is both the largest and fastest example of the SLs, with a maximum weight rating of 144t (hence the name) and a top speed of 35mph to boot. It was large enough to where the Chicago & North Western and Burlington Northern had two on hand (albeit these were the slightly lighter SL-136) possibly in an attempt to save fuel after the 1973 oil crisis. A total of 56 SL-144s (including less ballasted variants) were built between August 1974 and 1989.

RLC PT2 Specific Information

General Info	-
Engines	2x Cummins KTA-1150-L
Power Output	1,100hp
Truck Type	Proprietary
Axles	4
Traction Motors	4
Minimum Weight	230,000lbs
Maximum Weight	288,000lbs
Model Base Speed	21mph
Top Speed	35mph

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Electrical System	-
Generator Max Current	2,000A (GE GT-603) ⚠
Max Traction Motor (TM) Current	1,000A
Max Continuous TM Current	640A ⚠ (1)
Traction Motor Type	DC (GE 761)
Factor Of Adhesion	30%
Transition Mode	Automatic, No Selector
Transition Groups	2, 1 ⚠
Transition Shunts	1, 1 ⚠
Alternator Transition	No
Traction Control	APR + Sand ⚠
Dynamic Braking (DB) Mode (if used)	N/A
DB Max Current	N/A
DB Max Continuous Current	N/A
Blended Braking	No

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Miscellaneous	-
Head End Power (HEP)	No
HEP Consumption	N/A
HEP Stand By/Run Mode	N/A
Load Ramp Speed	6A/Tick ⚠
TM Overload Protection	No
Starter Mode	Automatic Start ⚠
Air Brake Schedule	26L
Compressor CFM	105 (Gardner Denver AVL @ 2,100rpm) ⚠
Main Reservoir Volume	33.8cu-ft ⚠

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Notes

(1) Traction motor current values are taken from the GE 761A23. Other sources for 761s say 705A for the max continuous rating.