Bulletin: *ALCO251 (16 cyl)*

*ALCO251 (16 cyl)*

The Alco 251 diesel engine was developed by the American Locomotive Company to replace the 244 and 539. The 251 Prime mover was Alco’s best selling prime mover. In 1954, the 251 went into production with the inline-6 at Auburn, New York. Ultimately a refined and successful design, the 251 outlived its designer. For a time it was built in Canada by Montreal Locomotive Works. Today it is still available from Fairbanks-Morse. Examples of the 16-Cyl 251 can be found in the following locomotives:
Air Start Examples: C430, C630, C636,C630M, and Some M630s and M636's
Electric Start Examples: RS-27, RSD-15, RSD-17, C424, M424W, C425, C628, C855, C855B, M630, C636, M636, LRC-2, LRC-3 and HR616.

This LokSound Select file contains two versions of the prime mover:
Prime mover #1 (CV48=0) features a "Alco 16-251 with Air Start"
Prime mover #2 (CV48=16) features a "Alco 16-251 with Normal Start"

Key Function Soundslots Volume CVs Volume value
LightDirectional Headlights
F2Playable Airhorn3275128
F3Coupler Clank5291128
F4Dynamic Brake629970
F5AUX3 output (pre-set to Mars Light)
F6AUX1 + AUX2 (Ditch Light)
F7Switching Mode
F8Sound (On/Off)1, 9259, 323128, 8
F9Diesel Manual Notching (Up)
F10Diesel Manual Notching (Down)
F11Radiator (Fan) Sound8315128
F12Dimmer (Headlights)
F13AUX4 function output
F15Crossing Communication10331128
F16Rail Clank (works only if F8 is On)11339128
F17Brake Set / Brake Release12347128
F18Sanding Valve13355128
F19Short Air Let Off14363128
F21Pop Valve Sound15371128