SD75M - FresnoSubber/Fresno-and-Co.-Trainbuild-Tomfuckery GitHub Wiki

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Canadian National SD75I #5654 in a siding as head power… I think

So, it’s the year of our lord 1994, you already shilled out to EMD for an SD70M, great locomotive, but then GE makes the C44-9W, all hell breaks loose, now you want more power. Never fear, EMD is HERE!!

The SD75M (Also named the SD75I by Canada operators), is essentially an SD70M(I), with the original 16-710G3B engine being replaced by the 16-710G3C found in the SD70MAC. Thus bringing the power from 4000hp, up to 4300hp.

Technical Specifications

General Info -
Engine EMD 16-710G3C
Power Output 4,300hp
Truck Type EMD HTCR
Axles 6
Traction Motors 6
Minimum Weight 388,000lbs ⚠
Maximum Weight 400,000lbs
Model Base Speed 74mph
Top Speed 74,80,86,92mph

Electrical System -
Alternator Max Current 9,900A
Max Traction Motor (TM) Current 1650A
Max Continuous TM Current 1230A
Traction Motor Type DC
Factor Of Adhesion 35% ⚠
Transition Mode Automatic, no Selector
Transition Groups 1
Transition Shunts 1
Generator Transition Yes
Traction Control ETC
Dynamic Braking (DB) Mode (if used) Electrical Blowers
DB Max Current 1000A ⚠
DB Max Continuous Current 945A ⚠
Blended Braking No

Miscellaneous -
Head End Power (HEP) No
HEP Consumption N/A
HEP Stand By/Run Mode N/A
Load Ramp Speed 2A/Tick
TM Overload Protection N/A
Starter Mode Manual Prime, Manual Start (1)
Air Brake Schedule 26L
Compressor CFM 254 ([Gardner-Denver WBO] (https://github.com/MagnumMacKivler/RLCPT2/wiki/Compressor-Options) @ 950rpm) ⚠
Main Reservoir Volume 35cu-ft ⚠

Notes

(1) Later units were fitted with automatic starters in the cab