Every tank crewman gets a copy of the TM for their vehicles, at least in the US Army. I doubt this is actually classified, unless for some reason the UK is vast

Every tank crewman gets a copy of the TM for their vehicles, at least in the US Army. I doubt this is actually classified, unless for some reason the UK is vastly different. You can at least view the entry for the M1A2 TM for the US Army here: https://armypubs.army.mil/ProductMaps/PubForm/Details.aspx?PUB_ID=83571 https://armypubs.army.mil/ProductMaps/PubForm/Details.aspx?P... You can't actually view it on the Internet, because as it notes, it has a dissemination restriction to US government agencies and contractors only, but it is unclassified and the soldiers on the crew are employees of a US government agency and entitled to read these. Reading paper is fine. In fact, when you're actually on a tank, it's your only option. You're not usually going to have a ruggedized computer that can access the Internet with you, if there's even a network at all serving wherever you happen to be. Information needs to be available in the absence of connectivity.