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Deviousness `anmari has been spreading her infectious positivity throughout our community for over 6 years. Throughout this time Ana has been at the core of all things devious, passionately developing an eclectic gallery, helping organise devmeets, participating in chat events and also recently completed dedicating her time as a Community Volunteer. We are absolutely delighted to bestow the Deviousness Award for May 2013 to `anmari, congratulations! Read More
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Sta.sh
Okay, that sounds weird. What I mean is: That's the largest type of steam locomotive this narrow-gauge railway has, and I think it's the most powerful type of narrow-gauge steam locomotive ever used in Germany. But yeah, compared to the converted former normal-gauge diesel locomotives behind it, it's tiny.
As for narrow gauge locos, I gotta admit, most are pretty small for what the same driver configuration can become in standard gauge. Though there are a very, very few very large narrow gauge locos around.
You're right. It is, of course, all down to axle load. A normal gauge locomotive with the same power output would need much less wheels to get the same weight on the drivers. The diesels in the rear show the same effect in the opposite direction: The normal gauge version has four axles. When they were converted to narrow gauge, they got six (with new bogies) to stay within axle load limits.
The narrow gauge locomotives that get really large are typically in areas where narrow gauge is the only widespread system, and so these lines are built to the same weight limits as normal gauge in Europe or the US. South Africa or parts of Australia are good examples.
The White Pass and Yukon Route from sea level from Skagway, Alaska to the far inland end 110 miles away in Whitehorse, Yukon Territory, Canada is a good example of heavy duty narrow gauge with full size diesels that approach a standard GP38 in overall weight but sit on a pair of 3 axle, 3 motor, 36 inch narrow gauge trucks.
It's all fascinating stuff. Wouldn't you, as a fellow railfan, agree?