AGL Altimeter Threshold 
Pilot Institute
MAY 4, 2024
If it prevents you from landing close to the threshold, a short runway becomes even shorter. x V SO (or POH recommendation) by around 500 feet AGL. The local altimeter setting is 29.65, the temperature is 25°C, and we have a 9-knot headwind. Establish the target approach speed by around 500 feet AGL.
Pilot Institute
FEBRUARY 15, 2025
Theyre pretty much the same thing, but heres the difference: DH is measured above the ground (AGL). The minima table lists the DA and Height Above Threshold for each type of RNAV approach. LPV is the most accurate RNAV approach and can get you as low as 200 feet above the ground (AGL), just like an ILS Category I approach.
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