Originally Posted by: garben 
Hello Andry,
I'm going to start to calibrate my locomotives and had a question regarding one of the initial screens while entering a locomotive. On the Speed tab for a locomotive, you need to input a speed for Forward and Backward and there is a field to enter a number for Power. Will these number be provided once I calibrate or do these numbers represent the actual prototype speeds and power? See screen shot below.
Thanks!

Hello Norbert,
When you press on the "Automatic Speed & Brake" button, you will open a separate window where you'll carry out the calibration. I usually go to the "Advanced Fine Tuning" window and do my calibrations from there. The details on how to setup your track (i.e., start block, end block, runoff, etc.) are described in the TC manual. Also there is a very good tutorial provided by Rudy on this topic (
https://www.youtube.com/watch?v=...jkb3050iUe6&index=59). When I started out, I followed all the TC tutorials from Rudy -- they are really great and you will learn a great deal. He breaks up his tutorials by topic -- each one is concise and to the point. Highly recommended.
To answer your question regarding the "Speed" settings. I set my locomotives to run prototypically and not more than what my layout is designed for. My layout era and topography limit speeds to 70 km/h max. However, some of my locos (based on prototype) are limited to 40, or 50 km/h. This is as per the real locos on which my models are based on. Therefore, when I program the decoder for a particular loco, I set its max speed to what it should be. This is done using either a LokProgrammer or my control station (ECoS). Once top speed is set, then the calibration will create a speed curve between 0 and your max speed. The "Power" input field is based on the prototype. This data is used by TC internally for momentum purposes. I find this info on the web with a search of the actual prototype loco (wikipedia is good at this).
Once again, I would highly recommend watching Rudy's tutorials. It's much easier to go through the calibration process in "video format" than to write it out in an e-mail. However, if after watching the videos and trying things out you have questions, please don't hesitate to post them here and I'll be glad to try and answer.
Below are screenshots of the various tabs for the "Engine Configuration" window. In this example, I'm using a Marklin 37059 Württemberg K (BR59).







Always glad to help. Cheers,
Andry