i"JimBob" wrote in message
oups.com...

What do you do when you cannot get the GS on approach? Can you
descent?

If you cannot get the GS in an ILS apporach, then it turns into a localizer
approach, which has higher minimums.
You can descend down to the MDA (minimum descent altitude), which typically
can be as low as 400'AGL... but if there are obstacles around it may be a
lot higher (i.e here at FTY in atlanta its about 700'AGL.).
If you cannot make it, then you shall go to your alternate.