Airports / 21MU / The Peninsula AirportModerate ground coverage

📍 Shell Knob⬆ 1,015 ft1 runways

21MU ·

The Peninsula Airport

36.56490°N

-93.50960°W

ARR / DAY

▼ 66.7%

DEP / DAY

▲ 0.0%

The Peninsula Airport (21MU) is a small general aviation airport located in Shell Knob, MO, 46 mi south of Springfield. It features 1 runway measuring 2,800 feet. SkyMeter has observed roughly 1 arrivals and 0 departures per day on average over the last 1 days.

Safety incidents

Last 1 days · 0 total

NORMAL

Current weather

From KHRO, 29 mi away (21MU does not publish METAR)

36m ago

Temp

32°F

Wind

7 kts

230°

Visib

10+ km

Ceil

—

KHRO 131625Z AUTO 23007KT 10SM SCT034 BKN044 31/21 A3002 RMK T03100210 MADISHF

Runways

1 installed

2,800 FT MAX

18/36

2,800 ft × 60

TURF-G○ unlit

Runway intelligence

Which runway carries the operations, observed over the last 30 days

70% of ops

86 land · 2 TO

30% of ops

37 land · 1 TO

Runway 18 carries 70% of operations (86 landings, 2 takeoffs) over the last 30 days. The next most-used is 36 at 30%.

Approach quality

Per-runway unstable-approach, go-around, and long-rollout rates

18 86 landings

UA 0%

36 37 landings

UA 0%

Approaches to 18 show a 0% unstable-approach rate (0 UA events from 86 landings).Phase B will add wind-correlation: which crosswind band produces most UA events.

Traffic behavior

When the field is busy: hourly + weekday vs weekend

Daily avg

4.8

flights/day · 144 total

Busy hour (local)

4pm

also 2pm · 6pm

Day vs night

72%

06:00–20:00 local

Traffic concentrates around 4pm–6pm local, averaging 4.8 flights/day. Weekend volume runs 1.1× weekday (5.4 vs 4.8 daily).

Aircraft character

What's actually flying here: top types over the last 30 days

Activity is led by (24% of 94 flights). Top three types: , , .

Communications Frequencies

2026-06-11

Type	Freq (MHz)	Hours
CTAF	122.900	—

Airport operations

ARTCC:: ZKC
Elevation:: 1,015 ft

Hourly traffic

Avg movements per hour · local time · last 30 days

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