Can helicopters land in a poor visibility scenario? The Instrument Landing System and some others systems can provide to incoming aircraft guidance to the runway in poor visibility scenarios.

With that in mind, I have these questions:


Can helicopters fly in IMC?
Is there any system that can help the pilot land, just like ILS?
Can helicopters fly IFR?  Yes

Do they use ILS?  Yes.  The only tricky part of it is the need to be slow at the end of the glide slope.

An IFR helicopter can use any of the navigation and landing aids available to any other aircraft.

This PPRuNe discussion is interesting.