Dog Star
Western Thunderer
Now those look like questions from the front of the class!!!!!!!!! Step up Jordan and take a bow.How does a front end throttle work, & what difference or advantage is there to it being fitted?
regards, Graham
Now those look like questions from the front of the class!!!!!!!!! Step up Jordan and take a bow.How does a front end throttle work, & what difference or advantage is there to it being fitted?
German Steam engines usually used "Nassdampfregler" which is the equivalent to "wet steam regulator". As you describe, the regulator and its operating mechanism is inside the pressurized boiler. Reaction is slow because steam will have to pass through the superheater tubes after the regulator was opened.I cannot find any in German steam, even post war Neubauloks but I've not checked every class, just the most likely.
Well that is a red rag to a bull kind of statement.Front end regulators were not common in the UK.
Why so much aggression.Well that is a red rag to a bull kind of statement.
It's a nickel silver etched cover plate and the rods are nickel silver, as are the support posts. The rest of the model (sans running gear and motion) is brass.WDYT? Was that linkage added after the factory finish? Is that solder? Or crazed lacquer?
Jason
View attachment 149217
So, it has to be asked...
How does a front end throttle work, & what difference or advantage is there to it being fitted?
The questions might've been worthy of the Front of the Class - attempting to understand the answers has returned me firmly to the Back again.Now those look like questions from the front of the class!!!!!!!!! Step up Jordan and take a bow.
regards, Graham
Okay, in real basic terms follow the drawing.The questions might've been worthy of the Front of the Class - attempting to understand the answers has returned me firmly to the Back again.
It would probably help if I knew more about how a steam loco actually works, of course!!
Only 95 9C tenders were procured for the UP and I think there are some very similar ones for the SP, but, with tenders this small they preferred the whale back (a whole new and bigger can of worms) variety
Due to the Californian emissions regulations, we often think of them as recent, before WWII then all engines in CA had to be oil fired, ATSF and SP had massive oil burning fleets, UP only converted those engines based in the area, usually with a drop min tank and a reasonably simple burner installation. Outside of CA then coal was preferred and a lot of the SP subsidiary T&NO was coal fired.SP had similar ones to the UP variety, as well as whaleback (or turtle) as you've alluded to, together with barrel, Vanderbilt or 'Vandy' - which I think was the most common and of course the standard oblong shape tender. Almost all SP variants I've seen have an oil tank instead of the coal hopper.
....and of course not forgetting the DRG, DB and DR with the Wannen tender .
'm not sure of the distinction between barrel and Vandy comes into play,
Due to the Californian emissions regulations, we often think of them as recent, before WWII then all engines in CA had to be oil fired, ATSF and SP had massive oil burning fleets, UP only converted those engines based in the area, usually with a drop min tank and a reasonably simple burner installation. Outside of CA then coal was preferred and a lot of the SP subsidiary T&NO was coal fired.