[Grimmy]

Please, someone - what is “ILS approach”?

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Instrument Landing System.

It’s for when the landing strip or airfield in total can’t be seen with the eyeballs because of weather (fog, heavy snow, etc).

So, the pilot has to rely exclusively on the instruments to give him the “glide path” or proper approach to the airfield and make sure he’s properly aligned with the runway.

The instruments also tell the pilot his elevation and speed over ground (and airspeed which are sometimes different because of wind) as well as his rate of altitude decline so that he can stay on that glide path and touch down where he needs to be to land on that runway without stalling, over shooting, etc.

So, TLDR version:

It’s landing an aircraft without being able to see outside the aircraft.

[little jeremiah]

Thanks for the details and thanks to all others who answered.

So..why would Q use that? Maybe because they can’t see exactly what the derps are going to be doing?