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"Glide-path" typically refers to the descent profile during the final phase of an aircraft’s approach for landing at an airport’s runway.
As an example, for an aircraft to safely land on a runway lets say that it is recommended that the aircraft approach a runway at an angle of three degrees and zero minutes in reference to the horizontal line of the runway. This glide-path will typically have a window of tolerance in minutes of a degree. There are 60 minutes in a degree. Therefore a safe glide path could be considered, for the sake of this illustration only, to be 30 minutes above three degrees and 30 minutes below three degrees. It could be also be said that an acceptable glide-path has an arc of one degree in a three degree angle/slope in the aircraft’s approach path.
During an instrument approach, glide-path slope (referred to as glideslope) information is obtained from the onboard ILS (Instrument Landing System) or the more precise MLS (Microwave Landing System) equipment. Acceptable glideslope values for particular runways are also published in charts known as approach plates.
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Glidepath is also the name of an IT coorporation, that based their name upon the aviation principle as described above, where it all matters of choosing the ideal way to land safely IT solutions.
More on their website on www.glidepath.nl