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@mjorstad wrote:
Found some pertinent info for steam whistles fr an early Q&A in The Eagle if this interests anyone. Apparently all heavy passenger and dual-use power-the 6600s, 1150s, 4-8-2s and 4-8-4s-had steamboat chimes. Some of the 6400s got them later on as well. The 2200s had something close to a Baldwin standard chime. No pure freight power (2-8-2s, 2-10-2s, 2-8-4s, 2-8-0s) had steamboat chimes.
I had noticed since originally posting that the long-bell 3 chimes were exclusive to passenger and mixed duty locomotives, but thank you for the confirmation.
I’m pretty sure the whistles on the 2201’s weren’t made by Baldwin. As far as I know, Baldwin only ever made single chime whistles and short-bell flat-top 3 chimes, and the 2201’s wore what look like Hancock’s long-bell step-top 3 chimes. The different sound more than likely has to do with the fact that the whistles on the 2201’s were attached to the superheater. All of Missouri Pacific’s other locomotives had their whistles attached to the steam dome. Superheated steam sounds very different from saturated steam.
I have found a handful of photos of the 5335 MT-73’s wearing 6 chimes, but they’re the only Missouri Pacific locomotives built after the 1910’s or so that wore 6 chimes, from what I can find.
