H0 N XL L M4 
The 4-12-2 represents the wheel arrangement of four leading wheels, twelve coupled driving wheels, and two trailing wheels. This arrangement was named the Union Pacific type, after the only railroad to use it, the Union Pacific Railroad.
Only one type of locomotive with a 4-12-2 wheel arrangement was built: the Union Pacific Railroad's 9000-series locomotives, 88 of which were built by ALCO between 1926 and 1930. These locomotives were used to increase the speed of freight trains in flat country, and were fairly successful, but were maintenance nightmares, largely because of their use of an inside third cylinder driving the cranked second driving axle between the frames. There was no inside valve gear to worry about, however. ALCO had obtained permission to use the conjugated valve gear invented by Sir Nigel Gresley. This system used two hinged levers connected to the outer cylinder's valves to operate the inner cylinder's valve. The 9000 class locomotives were the largest to use Gresley gear.
In this front view of the same locomotive the third cylinder and the mechanism that controlled it can be seen below the smokebox.
Between 1934 and 1940 eight of the first fifteen locos had their Gresley gear removed and were converted to a "double Walschaerts" valve gear which utilized a double eccentric (return) crank and second link on the right side (similar to the gear Baldwin used on its 3-cylinder experimental compound 4-10-2 #60000), which operated the valve for the inside cylinder. Union Pacific referred to this system as the "third link." The 4-12-2's constructed from 1928 utilized roller bearings in the Gresley lever bearings, thus none of these engines were converted. The pre-1928 engines not converted received the roller bearing levers in 1940, and no further conversions were made.
During design the third and fourth driving axles were planned to be "blind" (flangeless) in order to improve curve handling, but ALCO's lateral motion devices on the first and sixth axles (which allowed the axles to slide up to two inches to the side) made this unnecessary. They had the longest rigid wheelbase in North America, and the longest in the world until the Soviet Union built their 4-14-4 locomotive in 1934. The trailing truck carried the same axle load as the drivers, which was unusual.
There has been debate as to whether the first driving axle of the 4-12-2 was cranked to provide clearance for the main rod connected to the second axle. Union Pacific drawings show no such crank on the first axle, and the Railway Age article says "The 67 in (170 cm) drivers permit the use of a straight axle on the front drivers..." The spacing between the first and second axles was increased by 18 in (46 cm) to provide clearance. Based on the published dimensions, this means at its closest the centerline of the inside rod was 11.645 in (29.58 cm) from the centerline of the first axle. (UP drawings reproduced in Kratville and Bush's "Union Pacific Type" books show the inside rod 113 in (290 cm) long and the first and second driver axles 88 in (220 cm) apart. The inside cylinder axis was inclined 9.5 degrees and was 32 in (81 cm) above the plane of the driving axles at a point 181 in (460 cm) ahead of the second driving axle, so the cylinder axis missed the centerline of the second axle by 1-11/16 inches. The rod centerline is closest to the axle when the crank is 54.49 degrees below horizontal.)
There is one surviving UP 4-12-2 "Union Pacific" type locomotive. It is number 9000 displayed at the Los Angeles County Fairplex in Pomona, CA
Whistles:
CV163=0 UP 844 "Steamboat" - Default
CV163=1 Union Pacific 3-chime steamboat
CV163=2 Steam Whistle 1
CV163=3 SP 4449 Daylight
CV163=4 DRG&W 5 Chime
CV163=5 SOO Line 1003
CV163=6 DL&W 5 Chime
CV163=7 WM 6 Chime
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Steam Loco Rope Pull Bell
CV164=3 SOO Line 1003 Bell
CV164=4 UP 844 Air Ringer Bell - Default
CV164=5 SP 4449 Bell
CV164=6 DRG&W K27 Bell
Dynamos:
CV165=0 Soo Line 1003 Dynamo
CV165=1 K27 463 Dynamo
CV165=2 SPTriple Dynamo
CV165=3 UP Dual Dynamo
CV165=4 Z27 Dynamo
CV165=5 T16.1 Dynamo
Air Pumps
CV166=0 Cross Compound #1 Soo Line 1003
CV166=1 Cross Compound #2 K27 463
CV166=2 Cross Compound #3 SP 4449
CV166=3 Cross Compound #4UP 844
CV166=4 Single Stage #1 Z27
CV166=5 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0785 - Release Notes
===================================================
V-2 R-2:
===================================================
- updated independent brake
- updated boiler hiss
V-3 R-3:
===================================================
- updated steam chuffs sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4
H0 N XL L M4 
The 4-6-0 represents the configuration of four leading wheels on two axles in a leading bogie and six powered and coupled driving wheels on three axles with the absence of trailing wheels. In the mid 19th century, this wheel arrangement became the second most popular configuration for new steam locomotives in the United States of America, where this type is commonly referred to as a Ten-wheeler. As a locomotive pulling trains of lightweight all wood passenger cars in the 1890-1920s, it was exceptionally stable at near 100 mph speeds on the New York Central's New York to Chicago Water Level Route and on the Reading Railroad's Camden to Atlantic City, NJ, line. As passenger equipment grew heavier with all steel construction, heavier locomotives replaced the Ten Wheeler.
During the second half of the nineteenth and first half of the twentieth centuries, the 4-6-0 was constructed in large numbers for passenger and mixed traffic service. A natural extension of the 4-4-0 American wheel arrangement, the four-wheel leading bogie gave good stability at speed and allowed a longer boiler to be supported, while the lack of trailing wheels gave a high adhesive weight.
The primary limitation of the type was the small size of the firebox, which limited power output. In passenger service, it was eventually superseded by the 4-6-2 Pacific type whose trailing truck allowed it to carry a greatly enlarged firebox.
Whistles:
CV163=0 CPR 2317
CV163=1 CPR Whistle
CV163=2 Steam Whistle 1 - Default
CV163=3 SP 4449 Daylight
CV163=4 CNR 6 Chime
CV163=5 SOO Line 1003
CV163=6 DL&W 5 Chime
CV163=7 WM 6 Chime
CV163=8 CN 4 Chime
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Steam Loco Rope Pull Bell
CV164=3 SOO Line 1003 Bell - Default
CV164=4 UP 844 Air Ringer Bell
CV164=5 SP 4449 Bell
CV164=6 DRG&W K27 Bell
Dynamos:
CV165=0 Soo Line 1003 Dynamo
CV165=1 K27 463 Dynamo
CV165=2 SPTriple Dynamo
CV165=3 UP Dual Dynamo
CV165=4 Z27 Dynamo
CV165=5 T16.1 Dynamo
Air Pumps
CV166=0 Cross Compound #1 Soo Line 1003
CV166=1 Cross Compound #2 K27 463
CV166=2 Cross Compound #3 SP 4449
CV166=3 Cross Compound #4UP 844
CV166=4 Single Stage #1 Z27
CV166=5 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0783 - Release Notes
===================================================
V-2 R-2:
===================================================
- updated independent brake
- updated boiler hiss
V-3 R-3:
===================================================
- updated steam chuff sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4
H0 N XL L M4 
Recorded from Virginia & Truckee #29
Originally built for the Longview, Portland and Northern Railway as No. 680, the Locomotive was sold to the V&T in 1977.
It is still running today.
While recorded from a 2-8-0 this file can be used for smaller locomotives in many wheel arrangments.
Whistles:
CV163=0 V&T #29
CV163=1 V&T #25
CV163=2 L&N Passenger
CV163=3 B&O 3-Chime
CV163=4 PRR Pre-War 3-Chime
CV163=5 RBMN #425
CV163=6 HVSR #3 Crosby 3-Chime
Bells:
CV164=0 #29 V&T Bell
CV164=1 Pnuematic Bell 2
CV164=2 Rope Pull Bell
CV164=3 SOO Line 1003 Bell
CV164=4 DRG&W K27 Bell
Brake Squeal:
CV165=0 Brake Squeal #1 Long
CV165=1 Brake Squeal #1 Short
CV165=2 Brake Squeal #2 Long
CV165=3 Brake Squeal #2 Short
CV165=4 Brake Squeal #3 Long
CV165=5 Brake Squeal #4Short
Dynamos:
CV166=0 Y&T #29 Dynamo
CV166=1 K27 463 Dynamo
CV166=2 T16.1 Dynamo
Air Pumps
CV167=0 Cross Compound #1 Soo Line 1003
CV167=1 Cross Compound #2 K27 463
CV167=2 Single Stage #1 Z27
CV167=3 Westinghouse Single Stage 9" Air Pump HVSR #3
Reversers
CV168=0 Johnson Bar
CV168=1 Power Reverse
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0794 - Release Notes
===================================================
V-3 R-3:
===================================================
- updated independent brake
- updated boiler hiss
- updated steam chuff sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4
H0 N XL L M4 
Recorded from Chinese QJ
Whistles from Iowa Interstate #6988
The QJ (Chinese: 前进; pinyin: Qián Jìn; lit. 'To go forward" or "to advance') was a type of heavy freight steam locomotive used by China Railway. The majority were built by Datong locomotive factory. The prototypes and early production of the class were designated HP (Chinese: 和平; pinyin: Hé Píng; lit. 'peace'), being redesignated as FD (Chinese: 反帝; pinyin: Fǎn Dì; lit. 'Anti-Imperialism') class during the Cultural Revolution, before becoming the QJ class in 1971.
The class became the primary mainline freight locomotive on the Chinese rail network by the 1980s, and were then displaced by diesel locomotives in 2005. After the end of steam on the national Chinese railway network many QJ locomotives were used on industrial lines, as well as on the Jitong railway. Several of the class have been preserved.
Two units withdrawn from use in China, numbers 6988 and 7081 (both former Jitong Railway), were originally acquired by the Iowa Interstate Railroad and later donated to Central States Steam Preservation Association.[12][13] A third, number 7040 (re-numbered to 2008), was acquired by the Lexington, Kentucky-based R.J. Corman Railroad Group in 2008, and operated until 2013, when it was placed on display in a specially built glass display building in Lexington.[14] In 2020, Corman donated the engine to the Kentucky Steam Heritage Corporation.[15]
Iowa Interstate 7081 retains its original Chinese appearance with the exception of the Jitong lettering and logo being replaced with the Iowa Interstate's, and the mandatory changes required by U.S. law such as hand rails and a bell. IAIS 6988 was "Americanized" in time for operation at Train Festival 2011 in Rock Island, Illinois. The diesel-style bell originally installed when it arrived in Iowa was replaced with a steam engine type bell, the Chinese headlights were replaced with an American style light with a cast number plate under it, and an American steam whistle was installed. The steel sheet on the front was removed and all red paint was painted over in black, with white trim on the running boards, wheel rims, etc. The R.J. Corman locomotive has been heavily modified. Most notably the smoke deflectors have been removed along with new paint and skirts along the running boards.
This file is set up for the American Iowa Interstate 6988 version with 3 whistles recorded from that loco.
While recorded from a 2-10-2 Chinese QJ this file can be used for large "2-10-2" "Santa Fe" type or other large locomotives in many wheel arrangments.
Whistles:
CV163=0 CR 5-Chime - Original Chinese Whistle
CV163=1 DRG&W 5 Chime
CV163=2 Soo Line 1003
CV163=3 SP 4449 Daylight
CV163=4 Single Chime Hooter
CV163=5 CPR 2317
CV163=6 Western Maryland 6 Chime
CV163=7 CN 4 Chime
CV163=8 PRR Banshee #1
CV163=9 IAIS #6988 Guatemalan
CV163=10 IAIS #6988 Southern 3 Chime
Bells:
CV164=0 #3 HVSR Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Rope Pull Bell
CV164=3 SOO Line 1003 Bell
CV164=4 DRG&W K27 Bell
Brake Squeal:
CV165=0 Brake Squeal #1 Long
CV165=1 Brake Squeal #1 Short
CV165=2 Brake Squeal #2 Long
CV165=3 Brake Squeal #2 Short
CV165=4 Brake Squeal #3 Long
CV165=5 Brake Squeal #4Short
Dynamos:
CV166=0 Soo Line 1003 Dynamo
CV166=1 K27 463 Dynamo
CV166=2 T16.1 Dynamo
Air Pumps
CV167=0 Cross Compound #1 Soo Line 1003
CV167=1 Cross Compound #2 K27 463
CV167=2 Single Stage #1 Z27
CV167=3 Westinghouse Single Stage 9" Air Pump HVSR #3
Reversers
CV168=0 Johnson Bar
CV168=1 Power Reverse
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0817 - Release Notes
===================================================
V-3 R-3:
===================================================
- updated independent brake
- updated boiler hiss
- updated steam chuff sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4
H0 N XL L M4 
The K-27 is a class of 3 ft 0 in (914 mm) narrow gauge 2-8-2 steam locomotives built for the Denver and Rio Grande Railroad by the Baldwin Locomotive Works in 1903. Known by their nickname "Mudhens," they were the first and the most numerous of the four K classes of Rio Grande narrow gauge engines to be built. Of the original fleet of 15 locomotives, two survive to this day and operate on heritage railways in the United States.
Fifteen locomotives were built, originally class 125, they were reclassified as K-27s in 1924 when the Denver and Rio Grande became the Denver and Rio Grande Western Railroad. In the D&RGW's classification system, K was short for MiKado while 27 referred to the engine's 27,000 lbf of tractive effort. The K-27s were built as Vauclain compounds, with two cylinders on each side, expanding the steam once in the smaller cylinder and then a second time in the larger one. The extra maintenance costs of the two cylinders were greater than the fuel saving, so they were converted to simple expansion in 1907–1909. As a result, the K-27s were the Rio Grande's last purchase of compound locomotives. They were built with their main structural frames outside the driving wheels, with the counterweights and rods attached outside the frames.
They pulled freight, passenger and mixed trains on the D&RGW in and over the Colorado Rocky Mountains, traversing the entire length of the railroad. Many of them also spent time on the Rio Grande's subsidiary, the Rio Grande Southern. In later years, some were used as switchers at the D&RGW's yards in Durango, Gunnison, and Montrose.
Recorded from D&RGW (Cumbres and Toltec) K-27 463
Whistles:
CV163=0 UP 844 "Steamboat"
CV163=1 SP&S 3 Chime
CV163=2 Steamboat 3 Chime
CV163=3 SP 4449 Daylight
CV163=4 DRG&W 5 Chime
CV163=5 SOO Line 1003
CV163=6 DL&W 5 Chime
CV163=7 WM 6 Chime
CV163=8 DRGW 463 - Default
CV163=9 DRGW 484
CV163=10 DRGW 488
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Pnuematic Bell 3
CV164=3 Steam Loco Rope Pull Bell
CV164=4 SOO Line 1003 Bell
CV164=5 UP 844 Air Ringer Bell
CV164=6 SP 4449 Bell
CV164=7 DRG&W K27 Bell - Default
Dynamos:
CV165=0 Soo Line 1003 Dynamo
CV165=1 K27 463 Dynamo - Default
CV165=2 SPTriple Dynamo
CV165=3 UP Dual Dynamo
CV165=4 Z27 Dynamo
CV165=5 T16.1 Dynamo
Air Pumps
CV166=0 Cross Compound #1 Soo Line 1003
CV166=1 Cross Compound #2 K27 463 - Default
CV166=2 Cross Compound #3 SP 4449
CV166=3 Cross Compound #4UP 844
CV166=4 Single Stage #1 Z27
CV166=5 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0586 - Release Notes
===================================================
V-2 R-2:
===================================================
- updated independent brake
- updated boiler hiss
V-3 R-3:
===================================================
- updated steam chuff sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4
H0 N XL L M4 
The Heisler locomotive was the last variant of the three major types of geared steam locomotives.
Charles L. Heisler received a patent for the design in 1892, following the construction of a prototype in 1891. Somewhat similar to a Climax locomotive, Heisler's design featured two cylinders canted inwards at a 45-degree angle to form a 'V-twin' arrangement. Power then went to a longitudinal drive shaft in the center of the frame that drove the outboard axle on each powered truck through bevel gears in an enclosed gearcase riding on the axle between the truck frames. The inboard axle on each truck was then driven from the outboard one by external side (connecting) rods.
In 1897, Heisler received a patent on a three-truck locomotive. As with Class C Shay locomotives, the tender rode on the third truck. Unlike the Shay, Heisler's design did not have a continuous string of line shafting running the length of the engine. Instead, the tender truck was driven by a line shaft above the shaft driving the main engine trucks, connected to it through spur gears. This patent also covered use of a 4-cylinder 'vee four' cylinder configuration.
The Heisler was the fastest of the geared steam locomotive designs, and yet was still claimed by its manufacturer to have the same low-speed hauling ability.
Whistles:
CV163=0 SP 4449 Daylight
CV163=1 DRG&W 5 Chime
CV163=2 SOO Line 1003 - Default
CV163=3 DL&W 5 Chime
CV163=4 WM 6 Chime
CV163=5 Heisler
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Pnuematic Bell 3
CV164=3 Steam Loco Rope Pull Bell
CV164=4 SOO Line 1003 Bell - Default
CV164=5 DRG&W K27 Bell
CV164=6 Heisler
Air Pumps
CV166=0 Cross Compound #1 Heisler
CV166=1 Cross Compound #2 K27 463
CV166=2 Single Stage #1 Z27
CV166=3 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0787 - Release Notes
===================================================
V-3 R-3:
===================================================
- updated independent brake
- updated boiler hiss
- updated steam chuff sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4
H0 N XL L M4 
N.S.W.G.R. Class Z27 2705
**Please Note**
Responding to user feedback this file uses "Standard North American Function Mapping".
This is a template used for all steam files from ESU LLC.
While we realize most Australian Locomotives do not use Bells or Air Horns they are included in the mapping due to the template used. This is easily changable so the user can set the function mapping work as desired.
The Z27 class (formerly G.1204 class) was a class of steam locomotives built by Hunslet Engine Company for the New South Wales Government Railways of Australia. One example is preserved in #2705 at the New South Wales Rail Transport Museum.
Whistles:
CV163=0 UP 844 "Steamboat"
CV163=1 SP&S 3 Chime
CV163=2 Steamboat 3 Chime
CV163=3 SP 4449 Daylight
CV163=4 DRG&W 5 Chime
CV163=5 SOO Line 1003
CV163=6 DL&W 5 Chime
CV163=7 WM 6 Chime
CV163=8 Z27 Class 2705 - Default
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Pnuematic Bell 3
CV164=3 Steam Loco Rope Pull Bell - Default
CV164=4 SOO Line 1003 Bell
CV164=5 UP 844 Air Ringer Bell
CV164=6 SP 4449 Bell
CV164=7 DRG&W K27 Bell
Dynamos:
CV165=0 Soo Line 1003 Dynamo
CV165=1 K27 463 Dynamo
CV165=2 SPTriple Dynamo
CV165=3 UP Dual Dynamo
CV165=4 Z27 Dynamo - Default
CV165=5 T16.1 Dynamo
Air Pumps
CV166=0 Cross Compound #1 Soo Line 1003
CV166=1 Cross Compound #2 K27 463
CV166=2 Cross Compound #3 SP 4449
CV166=3 Cross Compound #4UP 844
CV166=4 Single Stage #1 Z27 - Default
CV166=5 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0740 - Release Notes
===================================================
V-2 R-2:
===================================================
- updated independent brake
- updated boiler hiss
V-3 R-3:
===================================================
- updated steam chuff sound slot
V-4 R-4:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128
V-5 R-5:
===================================================
- changed from USA project to Australia project Hide description more…
H0 N XL L M4
H0 N XL L M4 
The Norfolk and Western Class Y6b was a class of 2-8-8-2 Mallets built between 1948-1952 with a total of 30 examples built for the Norfolk and Western Railway.
The Y6b was known as the workhorse of the Norfolk and Western Railway and the epitome of the compound mallet development design.
They were an improvement of the previous Y6a class with the only difference between the Y6as and the Y6bs was that the Y6bs were longer than the Y6as, had a larger firebox and had a greater tractive effort. With the Y6as only generating a tractive effort of 166,000 lbf (738.5 kN) and the Y6bs generating a tractive effort of 170,000 lbf (756.2 kN). The locomotives delivered 5,500 horsepower. The weight of a Y6b locomotive about 582,900 lbs with 522,850 lbs directly on the drivers.
When the Norfolk and Western Railway ceased their mainline steam operations in 1959, 50 of the Y6s were still running out serviceable miles in the coal fields waiting for the final order of diesels to replace them. The last of the Class Ys were retired in the summer of 1960.
Whistles:
CV163=0 N&W Y6B
CV163=1 N&W Hooter
CV163=2 N&W #475
CV163=3 N&W Boiler Crane
CV163=4 Hooter
CV163=5 PRR Flat Top Single-Chime Banshee Ed2
CV163=6 CN #89 Hooter
CV163=7 UP #4014 Hancock 3-Chime
CV163=8 UP #844
CV163=9 GSMR #1702
Bells:
CV164=0 #3 N&W Y6B Bell
CV164=1 #765 NKP Bell
CV164=2EV #11 Bell
Brake Squeal:
CV165=0 Brake Squeal #1 Long
CV165=1 Brake Squeal #1 Short
CV165=2 Brake Squeal #2 Long
CV165=3 Brake Squeal #2 Short
CV165=4 Brake Squeal #3 Long
CV165=5 Brake Squeal #4Short
Dynamos:
CV166=0 Soo Line 1003 Dynamo
CV166=1 K27 463 Dynamo
Air Pumps
CV167=0 Cross Compound #2 K27 463
CV167=1 Cross Compound slow #2 SP 4449
CV167=2 Westinghouse Single Stage 9" Air Pump HVSR #3
Reversers
CV168=0 Johnson Bar
CV168=1 Power Reverse
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0557 - Release Notes
===================================================
V-1 R-1:
===================================================
- new project
V-2 R-2:
===================================================
- steam chuff secondary trigger distance adustment to 10 Hide description more…
H0 N XL L M4
H0 N XL L M4 
The Shay locomotive was the most widely used geared steam locomotive. The locomotives were built to the patents of Ephraim Shay, who has been credited with the popularization of the concept of a geared steam locomotive.
Shay locomotives had regular fire-tube boilers offset to the left to provide space for, and counterbalance the weight of, a two or three cylinder "motor," mounted vertically on the right with longitudinal drive shafts extending fore and aft from the crankshaft at wheel axle height. These shafts had universal joints and square sliding prismatic joints to accommodate the swiveling trucks. Each axle was driven by a separate bevel gear, with no side rods.
The strength of these engines is that all wheels, including, in some engines, those under the tender, are driven so that all the weight develops tractive effort. A high ratio of piston strokes to wheel revolutions allowed them to run at partial slip, where a conventional rod engine would spin its drive wheels and burn rails, losing all traction.
Shay locomotives were often known as sidewinders or stemwinders for their side-mounted drive shafts. Most were built for use in the United States, but many were exported, to about thirty countries, either by Lima, or after they had reached the end of their usefulness in the US.
Whistles:
CV163=0 SP 4449 Daylight
CV163=1 DRG&W 5 Chime
CV163=2 SOO Line 1003
CV163=3 DL&W 5 Chime
CV163=4 WM 6 Chime
CV163=5 Shay
CV163=6 Shay #2
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Pnuematic Bell 3
CV164=3 Steam Loco Rope Pull Bell
CV164=4 SOO Line 1003 Bell
CV164=5 DRG&W K27 Bell
CV164=6 Shay
Air Pumps
CV166=0 Cross Compound #1 Heisler
CV166=1 Cross Compound #2 K27 463
CV166=2 Single Stage #1 Z27
CV166=3 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
S0515 - Release Notes
===================================================
V-6 R-2:
===================================================
- updated independent brake
- updated boiler hiss
V-7 R-3:
===================================================
- updated independent brake
V-8 R-4:
===================================================
- updated steam chuffs
- updated rods and coasting
- updated boiler blowdown
- updated dynamo
- updated water refill
- updated function mapping Hide description more…
H0 N XL L M4
H0 N XL L M4 
The 2-8-2 wheel configuration on steam locomotives was one of the most highly used configurations made. This type of locomotive with 2 pilot wheels, 8 drive wheels, and 2 trailing wheels to support a larger firebox was first built for the Emperor of Japan, thus the name Mikado type. The first Mikado built for service in the US was built in 1901 and was owed by the Bismarck, Washburn and Great Falls until 1904 when it was acquired by the Soo Line.
This recording comes from the newer L-1 Class SOO Line 2-8-2 #1003. The SOO #1003 is a very average 2-8-2 not much different than the USRA light Mikado design. It does have slightly larger cylinders and a boiler pressure of about 170 PSI.
Originally delivered with a Westinghouse Cross Compound Air Pump, Walschaerts valve gear, an oil headlight, and a manual Johnson Bar, it was gradually upgraded to include a Power Reverse gear and electric headlights and class lights by about 1920.
It is important to note that wheel arrangement does very little to change the sounds of a steam locomotive. (Articulation aside). Boiler pressure, Stack size, Cylinder size and even the engineer at the throttle can all have more effect on the sound of locomotive than how many wheels are beneath it. While our dedication to accuracy is paramount, causing us to release very specific files, we will also be releasing some more generic files to try to give broad range to locomotives owned by MANY railroads. While this is a fairly common design and the sounds are similar to many locomotives, this ESU Full Throttle File is quite specific to the SOO #1003. We've included a few extra whistles for some variation.
Whistles:
CV163=0 UP 844 "Steamboat"
CV163=1 SP&S 3 Chime
CV163=2 Steamboat 3 Chime
CV163=3 SP 4449 Daylight
CV163=4 DRG&W 5 Chime
CV163=5 SOO Line 1003 - Default
CV163=6 DL&W 5 Chime
CV163=7 WM 6 Chime
Bells:
CV164=0 Pnuematic Bell 1
CV164=1 Pnuematic Bell 2
CV164=2 Pnuematic Bell 3
CV164=3 Steam Loco Rope Pull Bell
CV164=4 SOO Line 1003 Bell - Default
CV164=5 UP 844 Air Ringer Bell
CV164=6 SP 4449 Bell
CV164=7 DRG&W K27 Bell
Dynamos:
CV165=0 Soo Line 1003 Dynamo
CV165=1 K27 463 Dynamo
CV165=2 SPTriple Dynamo
CV165=3 UP Dual Dynamo
CV165=4 Z27 Dynamo
CV165=5 T16.1 Dynamo
Air Pumps
CV166=0 Cross Compound #1 Soo Line 1003
CV166=1 Cross Compound #2 K27 463
CV166=2 Cross Compound #3 SP 4449
CV166=3 Cross Compound #4UP 844
CV166=4 Single Stage #1 Z27
CV166=5 Single Stage #2 T16.1
The ESU Full Throttle Steam files now include a few new logic features for added operational realism while still leaving you in control of HOW YOU wish to run your locomotive.
Heavy Load: F9 by default.
Similar to the “Drive Hold” button on the Full Throttle Diesel files “Heavy Load” allows you to adjust the “Steam Cut Off Valve” at any speed allowing for a fierce full chuff or drifting with snifters and rod clanks. Heavy load can also act as an offset allowing speed adjustments when engaged if desired.
Coast: F4 by default.
Opposite of “Heavy Load” Coast allows for a negative offset allow drifting sounds of Rods and snifter valves at any speed. You again have the option to hold the speed to adjust the speed with this offset active. Even allowing for an increase of speed with no chuffs as if drifting downhill.
Independent brake: F10 by default
Identical to the Full Throttle Diesel files. This allows for the locomotive to stop more quickly than its regular momentum would normally carry it. This one is pretty self-explanatory – just press the brake and come to a stop! For additional options there are 3 Braking rates that can be set up for user preference.
Articulation: Sound Slot 2
By adding Sound Slot 2 to the F8 Function Mapping and enabling the "Secondary Trigger" (CV250) you can add a second set of drivers making any ESU Steam File articulated.
Function Mappable Air Horn: F21 by default
Sound Slot 21.
Many Steam locomotives had a single chime airhorn equipped. Those modelling SP, MILW, and others can now have this feature and put it where they would like in the function mapping in addition to the whistle.
S0574 - Release Notes
===================================================
V-3 R-3:
===================================================
- updated independent brake
- updated boiler hiss
V-4 R-4:
===================================================
- updated steam chuff sound slot
V-5 R-5:
===================================================
- changed whistle sound slot 3 maximum sound slot speed to 128 Hide description more…
H0 N XL L M4 If you download the designated file, you agree to be legally bound by the license given above.