voando, if you look at the actual difference in requirements between level D and level B /FTD3 you will see it's very minor and of no practical consequence. The Brazilian authorities have probably been taken in by the vociferous lobbying from the big (level D) sim manufacturers. If you ask people who have a passing knowledge of simulators you will usually find they have a completely false idea of what the differences are ( I did, until I read the documents!).