Hi Everyone, I'm involved in the mining industry, and been given a project based on the towing tractors used underground. These tractors often have to work in ridiculous conditions, and my project is to investigate how to prevent these tractors from getting stuck in the sections, specifically looking at how increasing the size of the front tyre would effect the tractors and if that would resolve the issue. Obviously if this is not an option, any other suggestions would help. Any help would be greatly appreciated. Thanks.