With regards to CDA's, is the descent conducted through the flight management computer and is it this that maintains idle thrust throughout the descent or does the pilot have to make sure that idle thrust is acheived through out this? Im confused as to weather the thrust for descent has to be programmed into the FMC for a CDA beforehand?
Is it possible for a CDA be achieved accuratly soley by using the MCP/FCU?
Many Thanks
Dan