Simviation Forums

Pehaps i used a lot of time flying in IFR and landing ILs
Isn't  the indicator of altitude aproach in ILS frecuency?
Im comfused
Its a matter of Transalation from english to my lenguage
can anybody explain

"Isn't  the indicator of altitude approach in ILS frecuency?"

Yes.

. . . but only after it's 'intercepted'
up to that point, the plane is on the autopilot's HDG and ALT control

Hal Stoen says it best here:

Stoenworks

Using the information Hal has published at his site any question regarding the safe operation of aircraft under any conditions can be answered.

Good Luck

bill

Thanks Bill,I assume its the same in real life you set the ils frecuency then Nav1 and the aircraft just control

Not quite. ILS systems fall into various categories - I forget what they are but they range from autoland to 'you do most of the work'

In the middle you have two categories - 'localiser only' and 'localiser and glide slope'.

The first just controls aircraft heading - ie it keeps the aircraft lined up with the runway centre line. You have to control altitude by reference to visual cues - such as the PAPI/VASI approach lights, or anything else for that matter. If you maintain a level attitude you'll end up overflying the airfield!

The second controls heading and altitude - once the localiser and glideslope have been intercepted (watch the indicators on your HSI or VOR1) the ILS brings your aircraft down on the ruway heading and on an angle of 3 degrees if it's a standard setup.

But it doesn't control airspeed - only autoland does that. So you have to either adjust autothrottle during descent or control airspeed manually. Most real life pilots will take manual control of the throttle before switching from ILS (autopilot) to manual for landing.