hello my captains,how r u all?? i hope that u r fine.please, i am assigned to make a research about FMS ( flight management system ) and i don't have enough data about this topic. please my friends if u have any information about that or any links to a site that may help in explanation this device to me----- for ur information i''m ATCO so my information about that topic is not much............waiting,,,,,,,,, and thank you any way for just reading that.