Power and speed curves

[wlindley]

Also from my little Perl program that reads the dat files and can create various tables, comes this graph of power, tractive effort, and maximum speeds through the years of Pak128.Britain-Ex :

[jamespetts]

Fascinating!

Edit: It'd be interesting to know what that looks like on a linear rather than logorithmic scale, too...

[wlindley]

Here is the linear scale. 

[jamespetts]

Very interesting!

[ӔO]

Would it be possible to give power-to-weight ratio and traction-to-weight?

It's interesting to see power goes up linearly, more or less. Speed goes up as log, as expected.

[wlindley]

Sure.

[ӔO]

That's interesting.
I suspected the power/weight went up as a sigmoid, but I didn't expect traction/weight to be more or less linear.

[wlindley]

Somewhere in the data of the Britain paksets, is an entire college course ready to be written... a survey course, involving geography, sociology, technology, and economics perhaps?

[jamespetts]

I should hope so (although the economics side of things definitely need much more work). I like to think that a side effect of playing this pakset will be actually learning about the history of transport!

[ӔO]

what is also interesting, is that the traction/weight graph looks like japan.