Chester County G O Carlson Airport satellite view
📍 Coatesville⬆ 660 ft1 runways
KMQS · CTH

Chester County G O Carlson Airport

39.97900°N
-75.86550°W
ARR / DAY
23
▼ 10.9%
DEP / DAY
24
▼ 11.4%

Chester County G O Carlson Airport (KMQS/CTH) is a small general aviation airport located in Coatesville, PA, 37 mi west of Philadelphia. It features 1 runway measuring 5,400 feet. SkyMeter has observed roughly 23 arrivals and 24 departures per day on average over the last 7 days.

Current weather

Latest METAR observation

20h ago
Temp
52°F
Wind
3 kts
340°
Visib
10+ km
Ceil
—
METAR KMQS 200035Z AUTO 34003KT 10SM 11/03 A3026 RMK AO2 T01050030 $

Runways

1 installed

5,400 FT MAX
11/29
5,400 ft × 100
ASP● LITHIGH

Runway intelligence

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

29
63% of ops
420 land · 443 TO
11
37% of ops
246 land · 205 TO
Runway 29 carries 63% of operations (420 landings, 443 takeoffs) over the last 30 days. The next most-used is 11 at 37%.

Approach quality

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

29 420 landings
UA 3%
11 246 landings
UA 3%
Approaches to 29 show a 3% unstable-approach rate (12 UA events from 420 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
35.9
flights/day · 1,076 total
Busy hour (local)
4pm
also 5pm · 2pm
Day vs night
67%
06:00–20:00 local
Traffic concentrates around 2pm–4pm local, averaging 35.9 flights/day. Weekend volume runs 0.9× weekday (33.2 vs 38.6 daily).

Aircraft character

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

Activity is led by (23% of 710 flights). Top three types: , , .

Communications Frequencies

2026-06-11
Type Freq (MHz) Hours
CTAF 122.700 —
APCH 124.350 —
APCH 319.150 —
UNICOM 122.700 —
AWOS 126.250 —
CD/P 125.600 —
OTHER 125.600 —
Airport operations
ARTCC:
ZNY
Mag var:
11° W
Fuel:
100LL

Hourly traffic

Avg movements per hour · local time · last 30 days

12a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p

Pilot & community notes

1 comment from OurAirports (click to expand)

1
david
8/18/2007
re: This airport has a new identifier.
Thanks FLUNKN -- I've updated the code.
© SkyMeter · All flight data subject to ODbL attribution · Updated 21:14 UTC