The Visual Flight Rules (VFR) traffic pattern for the active runway at Georgetown Executive (KGTU), with the radio calls to match. Traffic Pattern Altitude (TPA): 1,000 feet above ground level (AGL).
Altitude, shown here in feet above ground level (AGL)
GS
Groundspeed, speed measured over the ground
HDG
Heading, in degrees magnetic
HW
Headwind component
IAS
Indicated airspeed, the speed read off the airspeed indicator
KGTU
ICAO location indicator for Georgetown Executive Airport
kt
Knots, nautical miles per hour
RWY
Runway
VFR
Visual Flight Rules
XW
Crosswind component
Why 1,000 ft? There is no universal regulatory pattern altitude — the official Traffic Pattern Altitude (TPA) is whatever the FAA Chart Supplement publishes for the airport, and published values vary. Where none is published, the FAA's Advisory Circular (AC 90-66C) recommends a traffic pattern altitude (TPA) of 1,000 feet above ground level (AGL). At KGTU, with a field elevation of 789.5 ft above mean sea level (MSL), that puts the pattern near 1,790 ft on your altimeter.