Blue Knob Valley Airport Private
7PN4 · Duncansville, PA · 1,270 ft elevation · var 9W · Non-towered
Airport information
- FAA LID
- 7PN4
- Coordinates
- 40.3965, -78.4537
- Elevation
- 1,270 ft MSL
- Magnetic variation
- 9W
- Sectional chart
- DETROIT
- Airport use
- Private
- Control tower
- No
- ARTCC
- CLEVELAND (ZOB)
- Flight service (FSS)
- ALTOONA · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1971/10
- Distance from city
- 1 W
Weather
METAR observed
Loading current weather…
TAF forecast
Loading forecast…
Sun & FAA night 2026-06-22
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:11 AM | 09:11Z |
| Sunrise | 05:44 AM | 09:44Z |
| Sunset | 08:48 PM | 00:48Z |
| Evening civil twilight Loggable night begins | 09:21 PM | 01:21Z |
Plan a flight from 7PN4
Traffic pattern
- Landing
- Rwy 11
- Pattern
- left (turns left)
- TPA
- 2,300 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 11 at 2,300 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 11/29
3,415 ft · GRAVEL (Good)- Heading
- n/a
- Threshold elev
- 1,270 ft
- Traffic pattern
- Left
- Approach obstacle
- Road, 9 ft, 0 ft from threshold, 81 ft L of centerline
- Displaced threshold
- 300 ft
- Heading
- n/a
- Threshold elev
- 1,263 ft
- Traffic pattern
- Right
- Approach obstacle
- Trees, 18 ft, 73 ft from threshold, 91 ft L of centerline — 4:1 slope to clear · penetrates the 20:1 visual approach surface
| Runway | Length | Your margin |
|---|---|---|
| 11/29 | 3,415 ft |
Communication frequencies
Tower & ground
| UNICOM | 122.8 |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| AOO · Altoona | VOR | 108.80 | r309° / 8.1 NM |
| REC · Revloc | VOR-DME | 110.60 | r133° / 16.1 NM |
| JST · Johnstown | VORTAC | 113.00 | r080° / 18.1 NM |
| TON · Tyrone | VORTAC | 114.90 | r202° / 21.1 NM |
| THS · St Thomas | VORTAC | 115.00 | r327° / 36.1 NM |
| PSB · Philipsburg | VORTAC | 115.50 | r224° / 37.6 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 7PN4. VFR sectional link above.
Services
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- VFR ONLY.
- ARPT SURROUNDED BY MOUNTAINS.
- RWY MAY NOT BE MAINTAINED DURING WINTER; CALL PRIOR TO USE.
- FOR CD CTC JOHNSTOWN APCH AT 814-532-5960, WHEN APCH CLSD CTC CLEVELAND ARTCC AT 440-774-0234.
- RY 11 DSPLCD THLD MKD WITH YELLOW L'S EACH SIDE.
- RWY MARKED WITH YELLOW BARRELS.
- APCH RATIO 20:1 TO DSPLCD THLD.
- LOOSE STONES ON RWY. LOOSE STONES & TALL GRASS ON TWY & RAMP.
- SFC IS ROLLED SLATE.
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 7PN4 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.
About 7PN4
Blue Knob Valley Airport (7PN4) is an airport in Duncansville, PA, at 1,270 ft MSL. It has 1 runway, the longest 3,415 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 7PN4, refreshed from the Aviation Weather Center and FAA NASR.
Does 7PN4 have a control tower?
No. Blue Knob Valley Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 7PN4?
Blue Knob Valley Airport has 1 runway; the longest is 3,415 ft. See the Runways tab for headings, surface, and lighting.
Where is 7PN4?
Blue Knob Valley Airport is in Duncansville, PA, at an elevation of 1,270 ft MSL. Coordinates: 40.3965, -78.4537.
Fly out of 7PN4 often?
Save 7PN4 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.