For reference, the standard ILS glideslope angle for the final approach segment of every normal commercial airport is 3.0 degrees. But steeper ones are not unco

For reference, the standard ILS glideslope angle for the final approach segment of every normal commercial airport is 3.0 degrees. But steeper ones are not uncommon, London City is an extreme at 5.5 degrees, and requires special aicraft/aircrew certification.