Pennsylvania Railroad I1s

Pennsylvania Railroad I1s

Pennsylvania Railroad I1s

Power type: steam
Builder: Pennsylvania Railroad's Altoona Shops (123); Baldwin Locomotive Works (475)
Build date: 1916–1923
Total produced: 598
Configuration: 2-10-0
Gauge: 4 ft 8 1/2 in (1,435 mm)
Locomotive weight: 386,100 pounds (175.1 t)
Boiler pressure: 250 psi (1.7 MPa)
Feedwater heater: Worthington BL
Firegrate area: 69.9 square feet (6.49 m2)
Cylinders: 2
Cylinder size: 30½ in bore × 32 in stroke (775 × 813 mm)
Tractive effort:
I1s—90,000 lbf (400 kN)
I1sa—96,000 lbf (427 kN)
Career: Pennsylvania Railroad
Preserved: One - #4483

Sound Projects

There is 1 Sound Project for this Locomotive
PRRI1s 8 bit project by John McMasters, added on May 9, 2013

NOTE: Assign silence to cylinder 2 sounds when CV155 NOT =2 (Save memory---handles are not played
        unless project is running "Articulated" sounds with both front and rear cylinders.
NOTE: Make sure that the model CV133 Steam Chuff/CAM config, 128=>EXT cam, 1-127=>DRIVER dia in inches[63]
    and CV134 Gear ratio are adjusted so that THERE ARE 4 STANDARD NON-ARTICULATED


Low speed: A standing Locomotive collects condensed water in its cylinder as trapped steam cools. Since it isn't
Compressible, this water can blow out a cylinder head when the engine starts.
To avoid this ,the engineer first opens valves called cylinder cocks under each end of the
cylinders(sometimes in the middle too ). Then when the engine starts,the exhaust steam comes
Whoooshing out of the cylinder cocks with the condensate instead of chugging up the stack.
Engines doing this spray steam from under their cylinder.
The starting steam cock open is controlled by CV147 (about =14) since steam loco has no drier.

All sounds taken from existing sound projects.


Please see project description for full description and list of features.

SoundLoader Software

Using your PR3 programmer and SoundLoader Software, it’s quick and easy to download sound project files into your Digitrax FX decoders.

Format Information

With Digitrax Sound FX decoders and downloadable sound project files (.spj), you can download your choice of sound schemes into any Sound FX equipped locomotive. You can use spj’s that are available for free, you can modify those schemes or you can create your own!

Sound Decoders

Digitrax offers a wide variety of Sound FX decoders to fit many different locomotives. You’ll need to have a Digitrax SFX decoder installed to take advantage of using .spj files.

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