Large Scale Central

Great video demonstrating why train wheels are tapered

This is the best demonstration I’ve seen for how train wheels = rails work, and why the wheels are slightly tapered. The taper here is greatly exaggerated for clarity:

https://youtu.be/vkzgcJGdUnA

I found this one to be pretty interesting also.

When you find the old black and white filmed under a boxcar, you’ll be truly amazed as the weight of the car does keep the wheels centered, even though the tread slope is less than 5 degrees.

The BART system has used cylindrical wheels since its inception, and it has been a constant source of problems. I have lost track of the status, but there is a program underway to change them all to a tapered profile.

Bart’s status - New wheel tech quiets screeching rails

and - BART: Redesigned wheels make for quieter ride, but real improvement will take years

See what happens when you reinvent the wheel? (https://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif)(https://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-undecided.gif)

I’m looking at the comments and wondering why some of these people are allowed to think in public.