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NORFOLK SOUTHERN
DIESEL LOCOMOTIVE ROSTER

EMD F-7B Nos. 275-276

2 Units

NOTE: Both units are stored pending sale/retirement/disposition

This roster compiled and maintained by Chris R. Toth. 
Roster last updated on November 6, 2019.

 


Active Roster

 
NS
No.		 7th
No.		 6th
No.		 5th
No.		 4th
No.		 3rd
No.		 2nd
No.		 Original
No.		 Order
No.		 Builder
No.		 Build
Date		 Notes
275 4275 RPCX 2010 RPCX 201 CNW 410:4 CNW 317 CNW 113D CGW 113D 6204-B 13544 10-1950 Unit is stored pending sale/disposition.
276 4276 RPCX 2020 RPCX 202 CNW 411:3 CNW 318 CNW 114B CGW 114B 6206-B 13563 12-1950 Unit is stored pending sale/disposition.


General Info

NS Model Designation = F-7B
Horsepower = 1,800* (see notes below)
Fuel Tank Capacity = 1,000 gallons
Dynamic Braking = No
Control = N/A
Cab Signals = N/A
LSL (Locomotive Speed Limiter) = N/A

Units were purchased by NS from Kansas City Southern in October 2006 for business train use.

Units are stored in Altoona, PA when not being used for OCS (Office Car Special) trains.

Units have 57:20 gearing with a 90 mph maximum speed, where permitted.

Units are equipped with ECP (Electronically Controlled Pneumatic) train braking.

Units are equipped with SmartStart auto start/stop system.

Upgrade to both units completed in March 2013 included a new Dash 2 control system
and replacement of the D12B generator with an AR10 alternator.

Unit 4275 upgrade completed in December 2014 to a turbocharged EMD
16-cylinder 645-E1C engine rated at 2,000 horsepower and equipped with
Interstate Electronic Fuel Injection (EFI) system. The engine was switched again
in March 2018 to a non-turbocharged 16-cylinder 645E rated at 1,800 horsepower.

Unit 4276 upgrade completed in February 2015 to a turbocharged EMD
12-cylinder 645E3C engine rated at 2,000 horsepower and equipped
with Interstate Electronic Fuel Injection (EFI) system. The engine was switched again
in March 2018 to a non-turbocharged 16-cylinder 645E rated at 1,800 horsepower.

Both units equipped with the Traction and Engine Control Unit (TECU) from TMV Control Systems.

Both units repainted and renumbered from NS 4275-4276 in March 2019.

 


 

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Please Note: This is the personal website of Chris R. Toth. It is not affiliated with, sponsored nor supported by Norfolk Southern Corporation.

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