Clearwater Airpark Private
21OI · Owensville, OH · Non-towered · Print kneeboard · Open on the map
Nearby now
Loading…
Weather
METAR observed
TAF forecast
Loading forecast…
Sun & FAA night2026-09-18 · night begins 08:07 PM
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:53 AM | 10:53Z |
| Sunrise | 07:20 AM | 11:20Z |
| Sunset | 07:40 PM | 23:40Z |
| Evening civil twilight Loggable night begins | 08:07 PM | 00:07Z |
Plan a flight from 21OI
Winds aloft NOAA forecast · 3,000 to 53,000 ft
Loading winds aloft…
Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 17LEFT traffic
- Heading
- 170° mag · 166° true
- Dimensions
- 1,860 × 50 ft
- TPA
- 1,900 ft MSL (≈1,000 AGL) · standard
- Surface
- Turf
- CTAF
- 123.0
Enter the left downwind (heading 350°) on the 45° at 1,900 ft MSL (≈1,000 AGL).
More details — RWY 17
- Approach obstacle
- Pline, 30 ft, 200 ft from threshold
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
| Runway | Length | Your margin |
|---|---|---|
| 07/25 | 2,650 ft | |
| 17/35 | 1,860 ft | |
| H1/ | 100 ft |
Prefer one flat page? Full runway details for 21OI → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 21OI kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
MXQ 112.90 · CVG 117.30 · FLM 117.00
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| MXQ · Midwest | VOR/DME | 112.90 · 76X | Terminal | r221° / 22.6 NM |
| CVG · Cincinnati | TACAN | 117.30 · 120X | — | r080° / 29.2 NM |
| FLM · Falmouth | VOR/DME | 117.00 · 117X | High | r023° / 30.5 NM |
Prefer one flat list? All 21OI frequencies →
Charts & procedures
No published instrument procedures or Chart Supplement for 21OI — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 21OI
- Coordinates
- 39.1281, -84.0927
- Elevation
- 905 ft MSL
- Magnetic variation
- 4W
- Sectional chart
- CINCINNATI
- Airport use
- Private
- Control tower
- No
- ARTCC
- INDIANAPOLIS (ZID)
- Flight service (FSS)
- DAYTON · 122.1R · 1-800-WX-BRIEF
- Attendance
- MAY-SEP ALL DAWN-DUSK
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1984/06
- Distance from city
- 2 E
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 123.0 — confirm the click sequence in the Chart Supplement
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Ownership & management 2 contacts
Remarks FAA · 2 notes
General
- ULTRALIGHT ACTIVITY IN AREA.
- FOR CD CTC CINCINNATI APCH AT 859-372-6440
Nearby airports
Loading nearby conditions…
Also nearby: OI40 Hallelujah Field (private) (5 NM) · I69 Clermont County (6 NM) · 66OH Old Boston (private) (6 NM) · OH65 Hickory Grove Airpark (private) (7 NM) · OH66 Obannon Creek Aerodrome (private) (8 NM) · 59OH Kelch (private) (10 NM)
About 21OI
Clearwater Airpark (21OI) is an airport in Owensville, OH, at 905 ft MSL. It has 3 runways, the longest 2,650 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 21OI, refreshed from the Aviation Weather Center and FAA NASR.
Does 21OI have a control tower?
No. Clearwater Airpark is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 21OI?
Clearwater Airpark has 3 runways; the longest is 2,650 ft. See the Runways section for headings, surface, and lighting.
Where is 21OI?
Clearwater Airpark is in Owensville, OH, at an elevation of 905 ft MSL. Coordinates: 39.1281, -84.0927.
More about 21OI
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 21OI in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.