The RP7BD is a weird one. Out of all of Railpower’s products, it was this one that never saw the light of day. My assumption is that it would look something akin to the GK10B "Green Kid". Or something like that. Either way. This was likely meant to compete with NRE’s 1GS7B. However, railroads weren’t stupid and didn’t want anything less than 1000 horsepower for switching, so no RP7BDs were ever built.

Technical Specifications

General Info	-
Prime Mover	Deutz TCD2015V08
Horsepower	667 (2)
Truck Type	AAR Type A (3)
Axles	4
Traction Motors	4
Minimum Weight	248,000 lbs (3)
Maximum Weight	275,000 lbs (3)
Model Base Speed	45 MPH
Top Speed	45 MPH (3)

Electrical System	-
Generator Max Current	735 Amps
Max TM Current	1500 Amps (3)
Max Continuous TM Current	1050 Amps (3)
Traction Motor Type	DC
Adhesion	25%
Transition Mode	Automatic with no Selector
Transition Groups	4,2 (3)
Transition Shunts	1,1 (3)
Generator Transition	Yes
Traction Control	ETC
Dynamic Braking Mode	yes not
DB Max Current	N/A
DB Max Continuous Current	N/A
Blended Braking	No

Miscellaneous	-
Head-End Power (HEP)	good GOD no
HEP Power Consumption	N/A
HEP Standby/Run Mode	N/A
Load Ramp Speed	5 Amps/Tick ⚠️
TM Overload Protection	No
Start Mode	Fully Automatic Start
Air Brake Schedule	26-L
Compressor CFM	159 (Atlas GAR37 @ 2750 RPM)
Main Air Reservoir	33.8 Cubic Feet (3) ⚠️

Notes:

(1): While most Railpower products use Deutz engines, Cummins engines such as QSK19s were available.

(2): If the above applies to what you’re doing, the horsepower would be increased to 700 Horsepower, as the QSK19s are rated for 700 HP each. The Generator Current would also be 855, as the QSK19 generator set uses the Marathon 572RDL.

(3): Look up the specs of the donor unit for these (Specs are based off of early EMD Switchers).