ALCO 12-244 LokSound 5 North American and Australian Sound files 
H0 N XL L M4
- Article numbers:S0501
- Last change: 7/31/2024
- Manufacturer: ESU
The American Locomotive Company's model 244 prime mover was developed during the mid-1940s to power its post-war diesel locomotives. Interestingly, while Alco helped pioneer diesel technology dating back to the 1920s it had difficulty truly competing against Electro-Motive-Division due to reliability issues with its diesel engines. Before Alco began implementing the 244 in its locomotives the builder had spent most of the 1930s developing an earlier model that was used in most of its early switchers. The new prime mover was supposed to usher in a new era for Alco but instead saw it slip further behind EMD in the marketplace. During the early 1950s the manufacturer replaced the engine with the more reliable 251 that powered its Century series. It would prove to be the company's last engine as it exited the market before 1970.
This sound file would be appropriate for the following locomotives:
RS-2, RS-3, RSC-2, RSC-3, RSD-4, RSD-5
Although there are slight differences, this sound file could also be used in the following locomotives:
FA-1, FB-1, FA-2, FB-2, FPA-2, FPB-2
Recorded from a ALCO RS-3
This project is a normal idle version. It has a single 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
1st Generation Switcher Horn Pack 1
Horns (SoundCV9):
CV163=0 Handcock 4700 Whistle
CV163=1 Leslie A-125
CV163=2 Leslie A-200
CV163=3 Leslie S-25
CV163=4 Leslie S-2M
CV163=5 Leslie S-3K
CV163=6 Leslie S-3L
CV163=7 Nathan M-3
CV163=8 Nathan M-5
CV163=9 Nathan P-2
CV163=10 Nathan P-3-OC
CV163=11 Nathan P-5-OC
CV163=12 Wabco A-2
CV163=13 Wabco AA-2
CV163=14 Wabco E-2
CV163=15 Nathan K-3L
ALCO Bell Template Pack 3
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 004
CV164=1 ALCO Bronze Bell 007
CV164=2 ALCO Bronze Bell 009
CV164=3 ALCO Bronze Bell 012
CV164=4 ALCO Bronze Bell 013
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...
Switcher Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0501 - Release Notes
===================================================
V-5 R-5:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- updated prime mover note
- new prime mover volume mode Hide description more…
H0 N XL L M4
- Article numbers
- S0501
- Last change
- 7/31/2024
- Manufacturer
- ESU
ALCO 12-244 Ed2 LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0743
- Last change: 1/7/2026
- Manufacturer: ESU
The American Locomotive Company's model 244 prime mover was developed during the mid-1940s to power its post-war diesel locomotives. Interestingly, while Alco helped pioneer diesel technology dating back to the 1920s it had difficulty truly competing against Electro-Motive-Division due to reliability issues with its diesel engines. Before Alco began implementing the 244 in its locomotives the builder had spent most of the 1930s developing an earlier model that was used in most of its early switchers. The new prime mover was supposed to usher in a new era for Alco but instead saw it slip further behind EMD in the marketplace. During the early 1950s the manufacturer replaced the engine with the more reliable 251 that powered its Century series. It would prove to be the company's last engine as it exited the market before 1970.
This sound file would be appropriate for the following locomotives:
RS-2, RS-3, RSC-2, RSC-3, RSD-4, RSD-5
Although there are slight differences, this sound file could also be used in the following locomotives:
FA-1, FB-1, FA-2, FB-2, FPA-2, FPB-2
Recorded from a ALCO RS-3
This project is a normal idle version. It has a single 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
1st Generation Switcher Horn Pack 1
Horns (SoundCV9):
CV163=0 Handcock 4700 Whistle
CV163=1 Leslie A-125
CV163=2 Leslie A-200
CV163=3 Leslie S-25
CV163=4 Leslie S-2M
CV163=5 Leslie S-3K
CV163=6 Leslie S-3L
CV163=7 Nathan M-3
CV163=8 Nathan M-5
CV163=9 Nathan P-2
CV163=10 Nathan P-3-OC
CV163=11 Nathan P-5-OC
CV163=12 Wabco A-2
CV163=13 Wabco AA-2
CV163=14 Wabco E-2
CV163=15 Nathan K-3L
ALCO Bell Template Pack 3
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 004
CV164=1 ALCO Bronze Bell 007
CV164=2 ALCO Bronze Bell 009
CV164=3 ALCO Bronze Bell 012
CV164=4 ALCO Bronze Bell 013
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...
Switcher Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0743 - Release Notes
===================================================
V-5 R-5:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- prime mover volume selection mode
- brake 1 and 2 settings change
- brake set/release change
- traction motor update Hide description more…
H0 N XL L M4
- Article numbers
- S0743
- Last change
- 1/7/2026
- Manufacturer
- ESU
ALCO 12-251B Ed2 LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0541
- Last change: 1/7/2026
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer, ALCO who closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in Marine, Generator, and locomotive uses.
The 1800 horsepower 12cyl version of the 251B could be found in the following locomotives:
RS-11, RSD-12, RS-18, RS-36, FPA-4, FPB-4, RSC-14, FD-6, FD-7, FD-9, RSD-16, DL-560, 44 Class, 930 Class
The 2000 Horsepower 12cyl 251C version was extremely close to 251B in the way that is sounded. While we have full intentions to record this in the very near future the 251B is a very suitable substitute. The 12cyl 251C can be found in the following Locomotives:
RS-32, C420, M420, M420B, M420R, M420TR, HR-412, M424, 45 Class, 442 Class, 600 Class, 700 Class, A-321
The 12cyl 251 was also used in many rebuilt locomotives including:
RS-3m, C424m and others...
Recorded from a MLW RS-18U
This project is a normal idle version. It has a single 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
1st Generation Horn Pack 3
Horns (SoundCV9):
CV163=0 Leslie RS-3L
CV163=1 Leslie RS-5T-RRO
CV163=2 Leslie S-3K-R
CV163=3 Leslie SU-3L-LR
CV163=4 Nathan K-3H
CV163=5 Nathan K-3L
CV163=6 Nathan K-3LA
CV163=7 Nathan K-5H
CV163=8 Nathan K-5LA-R23
CV163=9 Nathan K-5LA-R24
CV163=10 Nathan P-2
CV163=11 Nathan P-3
CV163=12 Nathan P-5
CV163=13 Nathan P-5A
CV163=14 Nathan P-5-R24
ALCO Bell Template Pack 2
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 001
CV164=1 ALCO Bronze Bell 002
CV164=2 ALCO Bronze Bell 008
CV164=3 ALCO Bronze Bell 011
CV164=4 Transtronic E-Bell 001
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...
Switcher Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0541 - Release Notes
===================================================
V-5 R-4:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- prime mover volume selection mode
- brake 1 and 2 settings change
- brake set/release change
- traction motor update Hide description more…
H0 N XL L M4
- Article numbers
- S0541
- Last change
- 1/7/2026
- Manufacturer
- ESU
ALCO 16-251C LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0709
- Last change: 1/19/2026
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer. ALCO closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in marine, generator and locomotive uses.
Our recording is from a 16cyl 251C and could be found in the following locomotives:
C425, C628
Other locomotives using variations of the 16cyl 251 prime mover included:
RS27, C424, C430, RSD-15, C630, C636, WDM-2 (Indian Railways)
Recorded from a ALCO C-425
This project is a normal idle version. It has a single 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
Prime Mover Start Type
Air Start (Default):
CV31 = 16, CV32 = 1
----------------------
CV263 = 0
Electric Start:
CV31 = 16, CV32 = 1
----------------------
CV263 = 1
1st Generation Horn Pack 2
Horns (SoundCV9):
CV163=0 Leslie S-3J
CV163=1 Leslie S-3K-R
CV163=2 Leslie RS-3L
CV163=3 Leslie S-5T-F
CV163=4 Leslie S-5T-R
CV163=5 Leslie S-5T-RRO
CV163=6 Leslie SL-4T
CV163=7 Nathan K-5LA
CV163=8 Nathan M-3H-R2
CV163=9 Nathan M-3-R1
CV163=10 Nathan M-3-RT1
CV163=11 Nathan M-5-R24
CV163=12 Wabco A-2
ALCO Bell Template Pack 1
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 003
CV164=1 ALCO Bronze Bell 005
CV164=2 ALCO Bronze Bell 006
CV164=3 ALCO Bronze Bell 010
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...
1st Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0709 - Release Notes
===================================================
V-4 R-4:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- prime mover volume selection mode
- air start/electric start selection mode
- brake 1 and 2 settings change
- brake set/release change
- traction motor update
Hide description more…
H0 N XL L M4
- Article numbers
- S0709
- Last change
- 1/19/2026
- Manufacturer
- ESU
ALCO 12-251C3 Ed2 LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0714
- Last change: 4/22/2024
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer, ALCO who closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in Marine, Generator, and locomotive uses.
The 2000 horsepower 12cyl version of the 251C could be found in the following locomotives:
M420W, M420B, M420R, M420TR, HR-412, M424, RS-32, C420, 45 Class, 442 Class, 600 Class, 700 Class, A-321
The 2000 Horsepower 12cyl 251B version was extremely close to 251C in the way that is sounded. The 12cyl 251B can be found in the following Locomotives:
RS-11, RSD-12, RS-18, RS-36, FPA-4, FPB-4, RSC-14, FD-6, FD-7, FD-9, RSD-16, DL-560, 44 Class, 930 Class
The 12cyl 251 was also used in many rebuilt locomotives including:
RS-3m, C424m, and others...
Recorded from a ALCO M-420W
This project is a normal idle version. It has a single 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.
1st Generation Horn Pack 7
Horns (SoundCV9):
CV163=0 IEC-Holden K-3L
CV163=1 IEC-Holden K-3L-R3
CV163=2 Nathan M-3H
CV163=3 Nathan M-3H Ed2
CV163=4 Nathan M-3H-R2
CV163=5 Nathan M-3-RT1
CV163=6 Nathan K-3H
CV163=7 Nathan K-3H-R1
CV163=8 Nathan K-5L
CV163=9 Nathan K-5H Ed2
CV163=10 Nathan K-3L-R2
CV163=11 Nathan K-3L-R3
CV163=12 Nathan P-3 Ed2
CV163=13 Prime PM-990
ALCO Bell Template Pack 2
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 001
CV164=1 ALCO Bronze Bell 002
CV164=2 ALCO Bronze Bell 008
CV164=3 ALCO Bronze Bell 011
CV164=4 Transtronic E-Bell 001
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...
1st Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 RS-18 Air Dryer 3
CV166=1 RS-18Air Dryer 4
CV166=2 RS-18 Air Dryer 5
CV166=3 C-425 Air Dryer 2
S0714 - Release Notes
===================================================
V-2 R-2:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- new horn pack "1st Generation Pack 7" Hide description more…
H0 N XL L M4
- Article numbers
- S0714
- Last change
- 4/22/2024
- Manufacturer
- ESU
ALCO 12-251C C420 LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0722
- Last change: 9/20/2025
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer, ALCO who closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in Marine, Generator, and locomotive uses.
The 12cyl 251C can be found in the following Locomotives:
RS-32, C420, M420, M420B, M420R, M420TR, HR-412, M424, 45 Class, 442 Class, 600 Class, 700 Class, A-321
The 2000 Horsepower 12cyl 251C version was extremely close to 251B in the way that is sounded. The 1800 horsepower 12cyl version of the 251B could be found in the following locomotives:
RS-11, RSD-12, RS-18, RS-36, FPA-4, FPB-4, RSC-14, FD-6, FD-7, FD-9, RSD-16, DL-560, 44 Class, 930 Class
The 12cyl 251 was also used in many rebuilt locomotives including:
RS-3m, C424m, and others...
Recorded from a ALCO C-420
This project is a normal idle version. It has a single 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
1st Generation Horn Pack 2
Horns (SoundCV9):
CV163=0 Leslie S-3J
CV163=1 Leslie S-3K-R
CV163=2 Leslie RS-3L
CV163=3 Leslie S-5T-F
CV163=4 Leslie S-5T-R
CV163=5 Leslie S-5T-RRO
CV163=6 Leslie SL-4T
CV163=7 Nathan K-5LA
CV163=8 Nathan M-3H-R2
CV163=9 Nathan M-3-R1
CV163=10 Nathan M-3-RT1
CV163=11 Nathan M-5-R24
CV163=12 Wabco A-2
ALCO Bell Template Pack 1
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 003
CV164=1 ALCO Bronze Bell 005
CV164=2 ALCO Bronze Bell 006
CV164=3 ALCO Bronze Bell 010
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...
1st Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0722 - Release Notes
===================================================
V-3 R-3:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- prime mover volume selection mode
- brake 1 and 2 settings change
- brake set/release change
- traction motor update Hide description more…
H0 N XL L M4
- Article numbers
- S0722
- Last change
- 9/20/2025
- Manufacturer
- ESU
ALCO 16-251E LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0729
- Last change: 8/30/2023
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer. ALCO closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in marine, generator and locomotive uses.
Our recording is from a 16cyl - 251E and could be found in the following locomotives:
M630, M60W, C636, M636
Please note this file has both air and electric starters. Please research your prototype to be sure of which starter to use.
Recorded from a MLW M-636
This project is a normal idle version. It has a single 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 Start Type
Air Start (Default):
CV31 = 16, CV32 = 1
----------------------
CV263 = 0
Electric Start:
CV31 = 16, CV32 = 1
----------------------
CV263 = 1
1st Generation Horn Pack 3
Horns (SoundCV9):
CV163=0 Leslie RS-3L
CV163=1 Leslie RS-5T-RRO
CV163=2 Leslie S-3K-R
CV163=3 Leslie SU-3L-LR
CV163=4 Nathan K-3H
CV163=5 Nathan K-3L
CV163=6 Nathan K-3LA
CV163=7 Nathan K-5H
CV163=8 Nathan K-5LA-R23
CV163=9 Nathan K-5LA-R24
CV163=10 Nathan P-2
CV163=11 Nathan P-3
CV163=12 Nathan P-5
CV163=13 Nathan P-5A
CV163=14 Nathan P-5-R24
ALCO Bell Template Pack 2
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 001
CV164=1 ALCO Bronze Bell 002
CV164=2 ALCO Bronze Bell 008
CV164=3 ALCO Bronze Bell 011
CV164=4 Transtronic E-Bell 001
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...
1st Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0729 - Release Notes
===================================================
V-5 R-5:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- updated prime mover comment Hide description more…
H0 N XL L M4
- Article numbers
- S0729
- Last change
- 8/30/2023
- Manufacturer
- ESU
Goodwin/ALCO 12-244 LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0739
- Last change: 2/4/2021
- Manufacturer: ESU
In October 1956 the NSWGR took delivery of 4301, the first unit of an order for six locomotives to be built by A Goninan and Co at their Broadmeadow plant in suburban Newcastle. In June 1957 the last of the class, 4306, entered service. They were fitted with an Alco 244 engine and were rated at 1600hp (1193kW) for traction.
While recorded from a 43 Class this 12cyl 244 prime mover sound file would also work in the following locomotives.
RS-2, RSC-2, RS-3, RSC-3, RS-10, RSC-2, RSC-3, RSD-4, RSD-5, MRS-1, RSC-24, FCA-3, DL-500, And others!
Although there are slight differences, this sound file could also be used in the following locomotives:
FA-1, FB-1, FA-2, FB-2, FPA-2, FPB-2
As there are no 16cyl 244 equipped locos remaining, the 12cyl 244 would be a close stand in for the following Locomotives:
PA-1, PB-1, PA-2, PB-2, RSD-7
Recorded from 4306 at the Rail Transport Museum at Thirlmere.
This project is a normal idle version. It has a single 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 nothing. 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.
Australia Horn Pack 1
Horns (SoundCV9):
CV163=0 Australian Leslie S-2M (Leslie S-2M)
CV163=1 Australian Leslie S-3K-R (Leslie S-3K-R)
CV163=2 Australian Nathan K5H (Nathan K-5H)
CV163=3 Australian Nathan M3 (Nathan M-3)
CV163=4 Australian Nathan M3H (Nathan M-3H)
CV163=5 Australian Nathan M5 (Nathan M-5)
CV163=6 Australian Nathan P5( Nathan P5)
CV163=7 Australian Nathan P5 (Old Cast) (Nathan P-5-OC)
CV163=8 Directional RVB Hurricane 5-Chime (RVB Hurricane 5-Chime)
CV163=9 RVB Hurricane 3 Chime (RVB Hurricane 5-Chime)
CV163=10 RVB Hurricane 5-Chime
CV163=11 RVB Hurricane 5-Chime V2 (RVB Hurricane 5-Chime)
CV163=12 Twin RVB Hurricane 5-Chime (RVB Hurricane 5-Chime)
CV163=13 Wabco AABB #1
CV163=14 Wabco AABB #2
CV163=15 Westinghouse Single A-B (Wabco AABB #2)
CV163=16 Kockum Sonics 5 Chime
CV163=17 Nathan Airchime K2
CV163=18 Nathan K5UL-AU-LS
Australia Bell Template Pack 1
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 010
CV164=1 GE M 6731022A Steel Bell 001
CV164=2 EMD 8004156 Bronze Bell 001
CV164=3 EMD 8004156 Bronze Bell 009
CV164=4 EMD 8475495 Steel Bell 002
CV164=4 EMD 8475495 Steel Bell 010
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...
1st Gereration Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV166=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2 Hide description more…
H0 N XL L M4
- Article numbers
- S0739
- Last change
- 2/4/2021
- Manufacturer
- ESU
ALCO 12-251C C420 Ed2 LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0745
- Last change: 7/17/2023
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer, ALCO who closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in Marine, Generator, and locomotive uses.
The 12cyl 251C can be found in the following Locomotives:
RS-32, C420, M420, M420B, M420R, M420TR, HR-412, M424, 45 Class, 442 Class, 600 Class, 700 Class, A-321
The 2000 Horsepower 12cyl 251C version was extremely close to 251B in the way that is sounded. The 1800 horsepower 12cyl version of the 251B could be found in the following locomotives:
RS-11, RSD-12, RS-18, RS-36, FPA-4, FPB-4, RSC-14, FD-6, FD-7, FD-9, RSD-16, DL-560, 44 Class, 930 Class
The 12cyl 251 was also used in many rebuilt locomotives including:
RS-3m, C424m, and others...
Recorded from a ALCO C-420
This project is a normal idle version. It has a single 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.
1st Generation Horn Pack 2
Horns (SoundCV9):
CV163=0 Leslie S-3J
CV163=1 Leslie S-3K-R
CV163=2 Leslie RS-3L
CV163=3 Leslie S-5T-F
CV163=4 Leslie S-5T-R
CV163=5 Leslie S-5T-RRO
CV163=6 Leslie SL-4T
CV163=7 Nathan K-5LA
CV163=8 Nathan M-3H-R2
CV163=9 Nathan M-3-R1
CV163=10 Nathan M-3-RT1
CV163=11 Nathan M-5-R24
CV163=12 Wabco A-2
ALCO Bell Template Pack 1
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 003
CV164=1 ALCO Bronze Bell 005
CV164=2 ALCO Bronze Bell 006
CV164=3 ALCO Bronze Bell 010
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...
1st Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 1
Air Dryer (SoundCV12)
CV166=0 S-1 Air Dryer 1
CV166=1 C-425 Air Dryer 1
CV166=2 RS-18 Air Dryer 1
CV166=3 RS-18 Air Dryer 2
S0745 - Release Notes
===================================================
V-4 R-4:
===================================================
- description mispelling fix
- description brake squeal error fix
- soundslot brake squeal spelling mistake
- remastered prime mover
- updated prime mover comment section Hide description more…
H0 N XL L M4
- Article numbers
- S0745
- Last change
- 7/17/2023
- Manufacturer
- ESU
ALCO 12-251B LokSound 5 North American and Australian Sound files H0 N XL L M4
- Article numbers:S0767
- Last change: 1/7/2025
- Manufacturer: ESU
The ALCO 251 prime mover was the most popular and abundant prime mover ever made by the company. While it proved to be quite successful, it sadly outlived its original manufacturer, ALCO who closed their doors in 1969. The 251 prime mover is actually still available to purchase today from Fairbanks Morse for use in Marine, Generator, and locomotive uses.
The 1800 horsepower 12cyl version of the 251B could be found in the following locomotives:
RS-11, RSD-12, RS-18, RS-36, FPA-4, FPB-4, RSC-14, FD-6, FD-7, FD-9, RSD-16, DL-560, 44 Class, 930 Class
The 2000 Horsepower 12cyl 251C version was extremely close to 251B in the way that is sounded. The 12cyl 251C can be found in the following Locomotives:
RS-32, C420, M420, M420B, M420R, M420TR, HR-412, M424, 45 Class, 442 Class, 600 Class, 700 Class, A-321
The 12cyl 251 was also used in many rebuilt locomotives including:
RS-3m, C424m, and others...
Recorded from a MLW RS-18
This project is a normal idle version. It has a single 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
1st Generation Horn Pack 3
Horns (SoundCV9):
CV163=0 Leslie RS-3L
CV163=1 Leslie RS-5T-RRO
CV163=2 Leslie S-3K-R
CV163=3 Leslie SU-3L-LR
CV163=4 Nathan K-3H
CV163=5 Nathan K-3L
CV163=6 Nathan K-3LA
CV163=7 Nathan K-5H
CV163=8 Nathan K-5LA-R23
CV163=9 Nathan K-5LA-R24
CV163=10 Nathan P-2
CV163=11 Nathan P-3
CV163=12 Nathan P-5
CV163=13 Nathan P-5A
CV163=14 Nathan P-5-R24
ALCO Bell Template Pack 2
Bells (SoundCV10):
CV164=0 ALCO Bronze Bell 001
CV164=1 ALCO Bronze Bell 002
CV164=2 ALCO Bronze Bell 008
CV164=3 ALCO Bronze Bell 011
CV164=4 Transtronic E-Bell 001
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...
1st Generation Brake Squeal Template Pack 1
Brake Squeal (SoundCV11)
CV165=0 Composition Shoe #1
CV165=1 Cast Iron Shoe #1
ALCO Air Dryer Template Pack 2
Air Dryer (SoundCV12)
CV166=0 RS-18 Air Dryer 3
CV166=1 RS-18 Air Dryer 4
CV166=2 RS-18 Air Dryer 5
CV166=3 C-425 Air Dryer 2
S0767 - Release Notes
===================================================
V-4 R-4:
===================================================
- description mispelling fix
- description brake squeal error fix
- remastered prime mover
- new prime mover volume mode Hide description more…
H0 N XL L M4
- Article numbers
- S0767
- Last change
- 1/7/2025
- Manufacturer
- ESU
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