I have been away from this site yet again, but this time I’ve been working a lot and also working on a personal project which I hope will be awesome! I’ll get around to posting about that soon, but for now, you know what I forgot to include in both OpenTTD, part one: A history and the basics and OpenTTD, part two: Economy and game mechanics? Details on the various vehicles that are available in the game! If the roads and tracks are the veins of the transportation system, then the vehicles are the blood, and I am insane for not having gone into this sooner. So here it is! An unexpected part three to the OpenTTD mini-series. I will be going into detail with trains a little more than the others, but either way, prepare for some serious study involving comparisons of speed, weight, power, and tractive effort!
Calculating vehicle speeds
Let’s start by diving into vehicle speeds, shall we? Now, to figure out the speed of the vehicles in OpenTTD, we should first start with some definitions. Internally, OpenTTD works with a unit called km-ish/h and the conversion factor from km-ish/h to km/h is 1.00584, whilst the conversion factor from km-ish/h to mph is 1.6. Also, a tile is, for vehicle speed purposes, 664.(216) km-ish, 668 km or 415 miles long. This is based on the following data gathered by those at the OpenTTD Wiki.