Purdue University Airport traffic pattern

Pattern altitude at Purdue University Airport (LAF · KLAF) is 1,600 ft MSL (≈1,000 AGL) by the standard convention — none is published for this field, and every runway end is standard left traffic.

All of Purdue University 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 KLAF reports it.

RWY 10LEFT traffic

Heading: 100° mag · 099° true
Dimensions: 6,600 × 150 ft
TPA: 1,600 ft MSL (≈1,000 AGL) · standard
Surface: Asphalt
Lights: 4-light PAPI (left) (3°) + MALSR
ILS: ILS · CAT I · LOC 110.3 (LAF) · GS 3.00°
CTAF: 119.6

More details — RWY 10

Threshold elev: 600 ft
Markings: precision
Approach obstacle: Trees, 97 ft, 3,381 ft from threshold, 968 ft L of centerline — 32:1 slope to clear
Threshold crossing height: 50 ft
TDZ elevation: 601 ft
Declared TORA/TODA/ASDA/LDA: 6,600 / 6,600 / 6,600 / 6,600 ft
LAHSO: 4,600 ft (hold short of 05/23)

Condition: Good. Edge lights: High. Surface: Grooved. Weight bearing: Single wheel 90k, Double wheel 110k, Dual tandem 165k.

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	051° mag	1,600 ft MSL (≈1,000 AGL)
23	Left traffic	231° mag	1,600 ft MSL (≈1,000 AGL)
10	Left traffic	100° mag	1,600 ft MSL (≈1,000 AGL)
28	Left traffic	280° mag	1,600 ft MSL (≈1,000 AGL)

No pattern altitude is published for KLAF; 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 KLAF

Purdue University Airport is towered, working 119.6. 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.

All ends are left traffic, which is the FAR 91.126 default — turns to the left unless the field charts otherwise. The full entry procedure is here →

Frequently asked

What is the traffic pattern altitude at KLAF?

Purdue University Airport 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 1,600 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 KLAF have right traffic?

No. All 4 runway ends at Purdue University Airport use standard left traffic, so no right pattern is charted here.

Do I fly a standard pattern at KLAF?

Purdue University Airport is towered (119.6), 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 KLAF

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.