The International Simutrans Forum

Simutrans Extended => Simutrans Extended Paksets => Pak128.Britain-Ex => Topic started by: wlindley on August 11, 2012, 01:37:45 PM

Title: Power and speed curves
Post by: wlindley on August 11, 2012, 01:37:45 PM
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 :

Title: Re: Power and speed curves
Post by: jamespetts on August 11, 2012, 01:41:32 PM
Fascinating!

Edit: It'd be interesting to know what that looks like on a linear rather than logorithmic scale, too...
Title: Re: Power and speed curves
Post by: wlindley on August 11, 2012, 01:47:31 PM
Here is the linear scale. 
Title: Re: Power and speed curves
Post by: jamespetts on August 11, 2012, 01:53:32 PM
Very interesting!
Title: Re: Power and speed curves
Post by: ӔO on August 11, 2012, 02:06:30 PM
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.
Title: Re: Power and speed curves
Post by: wlindley on August 11, 2012, 02:26:47 PM
Sure.
Title: Re: Power and speed curves
Post by: ӔO on August 11, 2012, 03:15:05 PM
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.
Title: Re: Power and speed curves
Post by: wlindley on August 11, 2012, 07:26:25 PM
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?
Title: Re: Power and speed curves
Post by: jamespetts on August 11, 2012, 07:43:49 PM
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!
Title: Re: Power and speed curves
Post by: ӔO on August 11, 2012, 10:49:27 PM
what is also interesting, is that the traction/weight graph looks like japan.  :D