How does the ADC work out wind components ?
Speaking as a computer, rather than an aircraft, engineer, I've always wondered how the on-board computers manage to calculate wind components. Is it calculated from the GPS data, i.e. expected position - actual position = drift ? I've never quite got my head around how a huge lump of an airliner screaming along at mach .8 can manage to calculate / measure that there is a 5kt headwind ! How is it done ?