S1 whistles

[NW Mailing List]

It seems to me that the S1a whistle would be a little quieter (not as loud) than the other engines using the standard hooter due to boiler pressure differences. I don’t see why N&W would design a special whistle for the switchers when their standard whistles were probably readily available. 

I have Bill Bauer’s recordings from 1958 and some are noted as S1 or S1a engines. There may be some whistling on one of them.

-Jim Herron