Hello,
I can do a registration in a library, where are also books about some Czech locomotives. So if you need some informations about some of them, you can write there and I'll check, if there is some book about it and try to borrow the book. Please, don't write „Don't ask and take everything you can.”, because there is lot of books and I don't have unlimited reservoirs of time. I think best would be to find informations about T448p, which is in simulator now and we have also physics for diesel-electric of locos and it's also very similar to 742, probably most common Czech diesel loco. I also remember I promised to ET22_RULZ informations about Laminátka (230). So, what are your propositions?