Minutes in KPOU Class D
102
9 observed days
Lowest in KPOU Class D (AGL)
0 ft
Height above ground
0.25-mile events
1
4 samples in ring
Lowest in 0.25-mile ring (AGL)
1,162 ft
Near monitoring location

Observed aircraft profile

Known owner
FLAP HAPPY LLC
Observed callsigns
N9521W
First observed
Mar 30, 2026, 11:45 AM
Last observed
Jul 8, 2026, 02:44 PM
All observed minutes
204
All observed days
12

KPOU Class D activity

Counted from distinct receiver minute-presence coordinates inside the FAA-derived KPOU Class D polygon at 0–2,700 feet barometric altitude.

Average altitude (AGL)
982 ft
Median altitude (AGL)
962 ft
First Class D observation
Apr 8, 2026, 07:58 PM
Last Class D observation
Jun 30, 2026, 09:07 PM

Aircraft trail

N9521W · all to all

No trail loaded.

Lowest passes (¼ mi ring)

Every pass within 0.25 mi of the monitoring point, sorted by the lowest AGL reached during that pass.

Date/time (ET)FlightLowest AGLReplay

Daily KPOU Class D minutes

Daily sum of distinct receiver minutes inside KPOU Class D under 2,700 feet.

13
Apr 8
5
Apr 16
8
Apr 20
5
May 1
10
May 3
4
May 16
18
Jun 12
19
Jun 29
20
Jun 30
Daily distinct receiver minutes inside the Class D polygonPeak: 20 min

Daily minutes by noise band

Each minute is counted in the band for its loudest estimated measurement.

QuietModerateLoudVery loudUnmodeled
13
Apr 8
5
Apr 16
8
Apr 20
5
May 1
10
May 3
4
May 16
18
Jun 12
19
Jun 29
20
Jun 30
Noise bands use estimated dB from aircraft model and AGL for each receiver minute.Peak: 20 min