On a IFR flight in IMC conditions, I am using the flight management computer until I get radar vectors for the ILS final approach. I can set up the right display for the approach the nav. radios and receive localizer readings but no glideslope readings. So I am unable to follow the correct glide path to the runway.
Do I have the incorrect switch settings? If so, what should they be? Or if the United 747-400 does not come with a ILS glideslope, how do I set one up. Thank you