Naval Station Mayport / Admiral David L McDonald Field traffic pattern

Pattern altitude at Naval Station Mayport / Admiral David L McDonald Field (NRB · KNRB) is 1,000 ft MSL (≈1,000 AGL) by the standard convention — none is published for this field, and 23 is charted right traffic.

All of Naval Station Mayport / Admiral David L McDonald Field — runways, frequencies, charts and live weather

Pattern diagram

Drawn to scale from the FAA NASR runway alignments and the per end right traffic flags — pick a runway to see its pattern. Live wind picks the favored runway when KNRB reports it.

RWY 23RIGHT trafficRP · charted

Heading: 229° mag · 223° true
Dimensions: 8,001 × 200 ft
TPA: 1,000 ft MSL (≈1,000 AGL) · standard
Surface: Asphalt
Lights: 4-light PAPI (left) (3°)

More details — RWY 23

Threshold elev: 12 ft
Markings: precision
Threshold crossing height: 48 ft
TDZ elevation: 15 ft
End lights: REIL
Arresting gear: E28

Condition: Good. Edge lights: High. PCN 70.

Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates

Pattern direction by runway

Runway	Pattern	Heading	Pattern altitude
05	Left traffic	049° mag	1,000 ft MSL (≈1,000 AGL)
23	Right traffic	229° mag	1,000 ft MSL (≈1,000 AGL)

No pattern altitude is published for KNRB; the figure above is the AC 90-66B 1,000 ft AGL convention for propeller aircraft, rounded to the field. Turbine aircraft normally fly 1,500 ft AGL. Headings are the runway alignment; downwind is the reciprocal.

Flying the pattern at KNRB

Naval Station Mayport / Admiral David L McDonald Field is towered, working 118.75. Contact the tower before entering the surface area and fly the pattern you are assigned — the directions below are the charted default when no instruction is given.

Watch the right traffic ends here: 23. A right pattern at a field where the other end is left is the single most common place to end up pointing at opposing traffic. The full entry procedure is here →

Frequently asked

What is the traffic pattern altitude at KNRB?

Naval Station Mayport / Admiral David L McDonald Field has no traffic pattern altitude published in the FAA NASR data. The AC 90-66B convention for propeller aircraft is 1,000 ft AGL, which works out to roughly 1,000 ft MSL (≈1,000 AGL) here — but confirm it against the Chart Supplement before you fly, since a field can have a non standard pattern altitude that NASR does not carry.

Does KNRB have right traffic?

Yes, on one runway end: 23. Every other end at Naval Station Mayport / Admiral David L McDonald Field is standard left traffic.

Do I fly a standard pattern at KNRB?

Naval Station Mayport / Admiral David L McDonald Field is towered (118.75), so the pattern shown here is the charted default — but the controller's instruction overrides it. Expect straight in approaches, base entries and midfield crossings as traffic dictates.

More about KNRB

Pattern direction and alignment are drawn from the FAA NASR (28-day cycle); the diagram is generated, not an FAA chart. Pattern altitude is shown as published where NASR carries one, otherwise as the AC 90-66B 1,000 ft AGL convention. For planning and education only; always verify against the Chart Supplement.