Pilot Institute

MARCH 6, 2025

AGL Above Ground Level AGL is simply a way to tell the basis from which any given height or altitude is measured. Simply put, 400 feet AGL means that the 400 feet is measured from the underlying ground surface above the specific airspace. This is a general aviation term that also applies to drone flight.

Pilot 52

Pilot Weather Air Traffic Control NOTAMs 52

Pilot Institute

FEBRUARY 15, 2025

Before RNAV, pilots had to rely on radios (NAVAIDs) and antennas on the ground such as VORs (Very High-Frequency Omnidirectional Range) and NDBs (Non-Directional Beacons). Theyre pretty much the same thing, but heres the difference: DH is measured above the ground (AGL). DA is measured above sea level (MSL).

Approach 52

Approach Pilot Descent Airplanes 52

Pilot Institute

APRIL 24, 2024

Keeping jet traffic safe alongside slower general aviation aircraft is harder still. If flying under IFR, you’ll need a VOR or TACAN receiver, or an RNAV system (GPS). That’s a considerable detour for small general aviation aircraft. Managing so many aircraft is challenging. Equipment Requirements A two-way radio.

Clearance 52

Clearance Ceiling Airspace Classes Transponder 52

Flight Training Central

APRIL 29, 2024

MTR’s with segments above 1,500′ AGL are identified by a three-digit number. MTR’s flown entirely below 1,500′ AGL are identified by a four-digit number. Special flight rules provide for general aviation operations within the area. Washington SFRA For heightened security, the Washington, D.C.,

Clearance 111

Clearance AGL NOTAMs Pilot 111