Airport reference point

Airport Reference Point (ARP): The airport reference point is the latitude and longitude of a point that is the approximate center of all existing and proposed landing and takeoff areas.

Airport Reference Point - Latitude and longitude of an airport. Also known as Aerodrome Reference Point
ASL
Above Sea Level - The distance between an object and an imaginary line at sea level.

AIRPORT REFERENCE POINT (ARP) - The approximate geometric center of all usable runway surfaces.

Don't use the airport reference point since it is near mid-field
General rule for departures is to set up the ILS procedure for an immediate return.

ARP is a FAA Acronym for: Airport Reference Point
Related Definitions from Aviation Glossary
GSA
GHA
Military Operations Area (MOA)
ATA - Air Transport Association
MRO ...

See also: Aeronaut, Visual approach, Air route surveillance radar, Direct, Air traffic