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
- Yes
- ARTCC
- INDIANAPOLIS (ZID)
- Flight service (FSS)
- DAYTON
- Attendance
- MAY-SEP ALL DAWN-DUSK
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1984/06
- Distance from city
- 2 E
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:38 AM | 09:38Z |
| Sunrise | 06:10 AM | 10:10Z |
| Sunset | 09:06 PM | 01:06Z |
| Evening civil twilight Loggable night begins | 09:38 PM | 01:38Z |
Loggable night (§1.1)
09:38 PM → 05:38 AM
Night currency (§61.57)
10:06 PM → 05:10 AM
Plan a flight from 21OI
Runway 07/25
2,650 ft × 30 ft · Turf 07
- Heading
- n/a
- Traffic pattern
- Left
25
- Heading
- n/a
- Traffic pattern
- Left
Runway 17/35
1,860 ft × 50 ft · Turf 17
- Heading
- n/a
- Traffic pattern
- Left
35
- Heading
- n/a
- Traffic pattern
- Left
Runway H1/
100 ft × 100 ft · Turf H1
- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| MXQ · Midwest | VOR-DME | 112.90 | r221° / 22.6 NM |
| CVG · Cincinnati | VORTAC | 117.30 | r081° / 29.2 NM |
| FLM · Falmouth | VOR-DME | 117.00 | r023° / 30.5 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 21OI. VFR sectional link above.
Ownership & management
Owner
CLEARWATER AIRPARK, INC.
2845 US 50, BATAVIA, OH
513-625-9653
Manager
C. W. STANDRING
5101 MONTEREY ROAD, BATAVIA, OH
513-625-9653
Remarks FAA
- HELIPORT DETERMINATION; CONDITIONAL; APP/DEP TO HELIPAD IS IN AREA 60-270 DEGS; AREA IS APPROPRIATELY MARKED; WIND INDICATOR IS MAINTAINED.
- ULTRALIGHT ACTIVITY IN AREA.
- FOR CD CTC CINCINNATI APCH AT 859-372-6440
Nearby airports
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.