Round Valley Airport traffic pattern

Pattern altitude at Round Valley Airport (O09) is 2,234 ft MSL · 800 AGL as published by the FAA, and 28 is charted right traffic. · Open on the map

All of Round Valley Airport — 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 O09 reports it.

RWY 10LEFT traffic

Heading: 096° mag · 113° true
Dimensions: 3,670 × 60 ft
TPA: 2,234 ft MSL · 800 AGL · charted
Surface: Asphalt
Displaced thr: 210 ft
CTAF: 122.8

Enter the left downwind (heading 276°) on the 45° at 2,234 ft MSL.

More details — RWY 10

Markings: basic
Approach obstacle: Hill, 250 ft, 2,500 ft from threshold, 100 ft R of centerline — 9:1 slope to clear · penetrates the 20:1 visual approach surface

Condition: Excellent. Edge lights: Med. Weight bearing: Single wheel 30k.

Pattern side + displaced threshold: FAA NASR · TPA charted (NASR) · layout: FAA runway-end coordinates

Pattern direction by runway

Runway	Pattern	Heading	Pattern altitude
10	Left traffic	097° mag	2,234 ft MSL · 800 AGL
28	Right traffic	277° mag	2,234 ft MSL · 800 AGL

Pattern altitude is published for O09 in the FAA NASR data. Headings are the runway alignment; downwind is the reciprocal.

Flying the pattern at O09

Round Valley Airport is non towered, so the pattern is self announced on CTAF 122.8. AC 90-66B asks for a report on entry and on each leg, and for the standard 45° entry to downwind at pattern altitude.

Watch the right traffic ends here: 28. 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 O09?

The FAA publishes a traffic pattern altitude of 800 ft AGL for Round Valley Airport, which is 2,234 ft MSL on the altimeter with the field at 1,434 ft.

Does O09 have right traffic?

Yes, on one runway end: 28. Every other end at Round Valley Airport is standard left traffic.

What frequency is the pattern on at O09?

Round Valley Airport is non towered, so pattern position reports go on the CTAF, 122.8. AC 90-66B asks for self announcing on entry and on each leg.

More about O09

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.