Isle-A-Port traffic pattern

Pattern altitude at Isle-A-Port (TN43) is 1,200 ft MSL (≈1,000 AGL) by the standard convention — none is published for this field, and 21 is charted right traffic. · Open on the map

All of Isle-A-Port — 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 TN43 reports it.

RWY 21RIGHT trafficRP · charted

Heading: 210° mag · 212° true
Dimensions: 3,200 × 110 ft
TPA: 1,200 ft MSL (≈1,000 AGL) · standard
Surface: Turf
Displaced thr: 500 ft
CTAF: 122.8

Enter the right downwind (heading 030°) on the 45° at 1,200 ft MSL (≈1,000 AGL).

More details — RWY 21

Approach obstacle: Trees, 101 ft, 1,300 ft from threshold, 250 ft R of centerline — 12:1 slope to clear · penetrates the 20:1 visual approach surface

Condition: Poor.

Pattern side + displaced threshold: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)

Pattern direction by runway

Runway	Pattern	Heading	Pattern altitude
03	Left traffic	030° mag	1,200 ft MSL (≈1,000 AGL)
21	Right traffic	210° mag	1,200 ft MSL (≈1,000 AGL)

No pattern altitude is published for TN43; 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 TN43

Isle-A-Port 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: 21. 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 TN43?

Isle-A-Port 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 1,200 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 TN43 have right traffic?

Yes, on one runway end: 21. Every other end at Isle-A-Port is standard left traffic.

What frequency is the pattern on at TN43?

Isle-A-Port 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 TN43

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.