Bulletin: GE AC44C6M LATE EXH

Manufacturer: ESU, Item number: S0510, Version: V2-R2

The GE AC44C6M is an AC-traction 4,400-horsepower (3,300 kW) diesel locomotive, rebuilt from GE Transportation Dash 9 locomotives. AC44C6M rebuilds have been done by GE (now Wabtec), American Motive Power, Inc., and Norfolk Southern Railway's Juniata and Roanoke Shops, starting in September 2015. The AC44C6M retains the 16-cylinder 7FDL-16 prime mover used in the core locomotive prior to rebuilding, but replaces the Dash 9's DC traction motors with alternating current GE 5GEB13B7 traction motors. Externally, Norfolk Southern's Dash 9-40Cs received new wide-nosed cabs, and all rebuilt locomotives have a new hood front section with a new inverter cabinet behind the cab, while retaining the underframe and engine and radiator compartments of the original Dash 9 units.

Rebuilding an old Dash 9 locomotive into an AC44C6M costs only 50-60% that of purchasing a brand new AC locomotive. Wabtec claims a 17% improvement in fuel efficiency, 30% improvement in reliability, and a 55% improvement in haulage capability.

The GE 16-J337FDLT1+ Prime mover can be found in the following Locos:

AC44C6M

It is also very close to the following locos:

AC44C4M, AC4460CW

Recorded from a GE AC44C6M

This project has an automatic low & high idle. It has a single late (silenced) exhaust stack.

File also contains an "Isolation Switch" Mode on F15 when Standing Still.
Pressing F15 while not moving will lower the prime mover and lock the motor. F15 must be turned off to begin moving.

Another Mode is "Reverser In Center Position". When pressing F24 while stopped, the motor will lock so you can throttle through the notches like the prototype in neutral. F24 must be turned off to begin moving.

This project has "Run 8" mode. When turning on F26 with F28 off, the prime mover goes to run 8. Turning off F26 returns the prime mover sounds back to normal mode.

This project has "Coast" mode. When turning on F27 with F28 off, the prime mover goes to idle for coasting purposes. Turning off F27 returns the prime mover sounds back to normal mode.

You can still use F26 and F27 for manual notching. You have to keep both F26 and F27 off before pressing F28 to turn on manual notching. Once F28 is on, you can use F26 to notch up and F27 to notch down. F26, F27, and F28 must be turned off to return to normal mode.

This project has "Load" mode. When turning on F29 with F15, F24, F26, F27, F28 off, the prime mover goes into load mode. While you are using load mode, the prime mover will notch up 1 or more notches based on primary load settings(CV104). The throttle notches up using speed instead of requested speed while using the load feature. F29 must be turned off to return to normal mode.

Prime mover volume selection mode. By default the prime mover has volume dynamics. Meaning idle is soft while notch 8 is loud. This is very prototypical. The next option is volume maxed out. Meaning idle and notch 8 are the same volume. This is more suitable for people who like it loud.

Change the sound configuration of the prime mover sound slot 1
CV31 = 16, CV32 = 1
----------------------
CV263 = 0 Prime Mover Dynamic Volume Control
CV263 = 1 Prime Mover Max Volume

This file is also equipped with a Smart Start feature that cycles the prime mover on and off at intervals of your choice if the throttle is left at Idle and the loco is stopped.

Smart Start (Sound CV14):
CV168=0 No Smart Start Cycle - Default
CV168=1 - 1 Minute Cycle Engine On & 1 Minute Cycle Engine Off
CV168=2 - 2 Minute Cylcle Engine On & 2 Minute Cycle Engine Off
CV168=3 - 3 Minute Cylcle Engine On & 3 Minute Cycle Engine Off
CV168=4 - 4 Minute Cylcle Engine On & 4 Minute Cycle Engine Off
Etc.....
CV168=255 - 255 Minute Cycle

AC44C6M Horn Pack 1
Horns (SoundCV9):
CV163=0 Nathan K-5LA-R24 Ed3
CV163=1 Nathan K-5LA-R24 Ed2
CV163=2 Nathan K-5LA Ed3
CV163=3 Nathan K-5LA Ed5
CV163=4 Nathan P-5-R24
CV163=5 Nathan P-5 Ed2
CV163=6 Nathan Airchime P-5-R34
CV163=7 Nathan Airchime P-5-R35
CV163=8 Leslie RS-5T-R Ed2
CV163=9 Nathan K-5LLA-R1L (2nd Gen) Ed2
CV163=10 Nathan K-5HL-R2 (3rd Gen) Ed2

AC44C6M Bell Template Pack 1
Bells (SoundCV10):
CV164=0 GE M 6731022A Steel Bell 039
CV164=1 GE M 6731022A Steel Bell 028
CV164=2 Graham-White E-Bell 011
CV164=3 GE M 6731022A Steel Bell 038
CV164=4 GE M 6731022A Steel Bell 030

Auto Bell:

Many Second and Third Generation locomotives have been fitted with an Automatic Bell that is triggered when the horn is blown. In MANY cases this cannot even be bypassed on modern locos. Before the FRA mandated this feature on new locomotives the bell was of course turned on and off separately. Some locomotives were delivered with a manual bell and have been converted to an automatic bell. This creates a challenge in sound file creation.

We realize that not every loco with a particular prime mover had this feature. As such we have built in an option to turn the feature on and off. We will set the default in the file to be what is most appropriate for the particular file.

To turn the feature OFF - Auto Bell OFF:

1. Remove the Auto bell sound slot from the function mapping chart
CV31 = 16, CV32 = 8
----------------------
CV311 = 4

2. Change the sound configuration of the Auto bell sound slot
CV31 = 16, CV32 = 1
----------------------
CV287 = 0

To turn the feature ON - Auto Bell ON:
1. ADD the Auto bell sound slot from the function mapping chart
CV31 = 16, CV32 = 8
----------------------
CV311 = 12

2. Change the sound configuration of the Auto bell sound slot
CV31 = 16, CV32 = 1
----------------------
CV287 = 1


Auto Bell Timer:
The Bell timer is amount of time the bell will play after the horn if the auto timer is active. The timer is broken down into 1/4 of a second increments.
CV169=4 - 1 Second
CV169=8 - 2 Seconds
CV169=12 - 3 Seconds
CV169=16 - 4 Seconds
CV169=20 - 5 Seconds - Default
Etc...

3rd Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Composition Shoe #2

S0510 - Release Notes
===================================================

V-1 R-1:
===================================================
- new project

V-2 R-2:
===================================================
- locomotive name change to GE AC44C6M LATE EXH
- air compressor update
- smart start update

KeyFunctionsSound slotsVolume CVsVolume values
F0Headlights Front/Rear
F1Bell4, 18283, 39545, 35
F2Horn3, 4, 31275, 283, 499225, 45, 100
F3Coupler529160
F4Dynamic Brake6299100
F5Emergency Lights
F6Aux1-Aux2 Front Ditchlights Flashing by default
F7Flange Squeal2343525
F8Prime Mover, Traction Motor, Starting Delay1, 19, 25, 26259, 403, 451, 459225, 6, 50, 60
F9Drive Hold
F10Independent Brake1133930
F11Radiator Fan8315100
F12Dimmer
F13Aux4-Aux5 Rear Ditchlights Flashing by default
F14Hand Brake1436315
F15Isolation Switch2141910
F17Brake Set/Release Automatic2948330
F18Sanding Valve133557
F20Compressor730750
F22Cab Door1537160
F23Engine Compartment Doors1637960
F24Reverser Center204116
F25Shutters Open/Closed325077
F26Manual Notching Up / Run 8
F27Manual Notching Down / Coast
F28Manual Notching Logic2746720
F29Load
F30Automatic Brake1033130
F31Soundfader

Make sure that index CV31 is set to 16 and index CV32 is set to 1 before changing a volume CV.