Instrument Landing System

It is used in aviation, typically on bad IFR days. I HATE using the ILS because there's no skill...

Some operators require a landing with ILS, and some European airports do too.

I prefer doing NPAs or RNAV approaches...

The ILS catches usually around the Mode C Veil - 30 to 50 NM from the airport.

Usually only Class B Airports have ILS systems, but some Class C airports have Cat I systems...
Me: Hopkins Tower, this is Delta 4558 inbound, full stop, ILS landing...uhh Delta 4558

Them: Roger, standby Delta 4558

Me: Roger, Standby
(5 mins later)

Them: Delta 4558, cleared to land 24R, you are number two. Winds 250 at 10, altimeter 3021.
by FO Jim May 13, 2012
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"They're so annoying. They must be I.L."

or

"David goes to see that damn country band every week. He must be I.L."
by lucky wendy July 26, 2005
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I.L.S. or Imaginary Lat Syndrome is an ailment suffered by men who walk around with thier arms further away from their lats (latimus dorsi), the muscle on the side of thier torso, to create the illusion that their lats (and physiques) are much bigger than they are.
Did you see Leah's new boyfried? The kid's got I.L.S. He think he's big but he's only like a buck fifty.
by People Skills May 19, 2004
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The universal time for when one needs to feed their pet eel
Brother, it is time to initiate the il

Yeah I can’t come over I gotta il
by rjb88 February 27, 2020
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French for "he."
Il est tres stupid.
by Joe Butler February 14, 2004
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Usually ILS sufferers are guys that refuse to work out, but nonetheless hold their arms out at about a 45 degree angle from their body as if to say "hey it's hard bein' this ripped" Also called "the cobra" Often times coupled with the very popular IGS or Invisible Girdle Syndrome.
by clockstopper September 27, 2006
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