Ash Bridge
Established Member
Re The Peaks: There’s a thread on another forum that’s thrown up some interesting details.
It seems that 45/0s, 45/1s and 46s all had different variations of silencer between the classes but certain 45/1s had quieter ones fitted during overhauls in the early 80s. Some of the 45/1s though retained much louder 45/0 type silencers, and being pretty much straight through piped these locos were considerably louder than the so called ‘snipped’ 45/1s. That’s apparently the term for it...
Of the preserved ones 45108 is reckoned to be one of the loudest and 45149 is very much a snipped quiet one with a properly functioning silencer.
46s were/are loud having a slightly different system again to the 45s.
The way the fuel system is set up can also effect the decibel levels.
With the 47s you could get quiet ones and loud ones. 47306 down at Bodmin seems pretty quiet to me and does that slightly greyish exhaust thing that the quieter ones seem to display at times. I’d always assumed that this was due to the way the fuel racks etc were set up but I’m not sure.
47580 is a noisy one and to my ear sounds exactly right and with a proper exhaust colour too.
That's interesting what you post there Mr C. I'll have to admit that my Peak comments are really based on how I remember them during the 1970s, as I did have a period (roughly 1977-87) where my railway interests had wained somewhat, by the time my enthusiasm had been rekindled there were only a handful of 45s remaining so I didn't experience them so often. On the subject of 47s, in later years I thought the 47/8s employed on XC services usually could be relied on to produce a rather vocal result, not to mention an impressive display of clag, one wonders now if they sounded louder in their latter years than what they did during the 60s/70s?