Helena Regional traffic pattern

Pattern altitude at Helena Regional (HLN · KHLN) is 4,900 ft MSL (≈1,000 AGL) by the standard convention — none is published for this field, and 27, 23, 35 are charted right traffic. · Open on the map

All of Helena Regional — 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 KHLN reports it.

RWY 10LEFT traffic

Heading: 091° mag · 103° true
Dimensions: 1,584 × 75 ft
TPA: 4,900 ft MSL (≈1,000 AGL) · standard
Surface: Turf
CTAF: 118.3

More details — RWY 10

Threshold elev: 3,856 ft
TDZ elevation: 3,856 ft

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
09	Left traffic	090° mag	4,900 ft MSL (≈1,000 AGL)
27	Right traffic	270° mag	4,900 ft MSL (≈1,000 AGL)
05	Left traffic	054° mag	4,900 ft MSL (≈1,000 AGL)
23	Right traffic	234° mag	4,900 ft MSL (≈1,000 AGL)
17	Left traffic	167° mag	4,900 ft MSL (≈1,000 AGL)
35	Right traffic	347° mag	4,900 ft MSL (≈1,000 AGL)
10	Left traffic	091° mag	4,900 ft MSL (≈1,000 AGL)
28	Left traffic	271° mag	4,900 ft MSL (≈1,000 AGL)

No pattern altitude is published for KHLN; 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 KHLN

Helena Regional is towered, working 118.3. 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: 27, 23, 35. 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 KHLN?

Helena Regional 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 4,900 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 KHLN have right traffic?

Yes, on 3 runway ends: 27, 23, 35. Every other end at Helena Regional is standard left traffic.

Do I fly a standard pattern at KHLN?

Helena Regional is towered (118.3), 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 KHLN

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.

Something here wrong or out of date? Report a data problem.