ILS Glideslope Height
Height an aircraft should be above the runway threshold when established on the ILS glideslope at a given distance.
Formula
Variables
Example
3° slope at 3 nm (18228 ft): h ≈ 18228×tan3° ≈ 955 ft
Did You Know?
The standard ILS glideslope is 3°, which conveniently puts you about 300 ft above the ground for every nautical mile from touchdown.
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