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St John Airport Private

4MD9 · Owings Mills, MD · 461 ft elevation · var 10W · Towered

Airport information

FAA LID
4MD9
Coordinates
39.4806, -76.7606
Elevation
461 ft MSL
Magnetic variation
10W
Sectional chart
WASHINGTON
Airport use
Private
Control tower
Yes
ARTCC
WASHINGTON (ZDC)
Flight service (FSS)
LEESBURG
Attendance
UNATNDD
Segmented circle
No
Activated
1992/12
Distance from city
4 N

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-20

EventLocal (EDT)UTC
Morning civil twilight
Loggable night ends
05:07 AM09:07Z
Sunrise05:40 AM09:40Z
Sunset08:37 PM00:37Z
Evening civil twilight
Loggable night begins
09:10 PM01:10Z
Loggable night (§1.1)
09:10 PM → 05:07 AM
Night currency (§61.57)
09:37 PM → 04:40 AM

Plan a flight from 4MD9

Runway 02/20

2,600 ft × 120 ft · Turf
02
Heading
n/a
Traffic pattern
Left
Displaced threshold
300 ft
20
Heading
n/a
Traffic pattern
Left

Nearby navigation aids

NavAidTypeFreqRadial / Dist magnetic
EMI · WestminsterVORTAC117.90r103° / 10.1 NM
MTN · MartinTACAN134.10r310° / 18.5 NM
BAL · BaltimoreVORTAC115.10r357° / 19.1 NM
PPM · PhillipsVOR-DME108.40r281° / 27.3 NM
FDK · FrederickVOR109.00r090° / 28.8 NM
DCA · WashingtonVOR-DME111.00r028° / 39.4 NM

No published instrument procedures or Chart Supplement for 4MD9. VFR sectional link above.

Ownership & management

Owner
ROLLING RIDGE ESTATE II, LLC
P.O. BOX 3661, GLYNDON, MD
443-814-0111
Manager
JONATHAN BEM
P.O. BOX 3661, GLYNDON, MD
443-814-0111

Remarks FAA

  • PRVDD ARPT USED DALGT ONLY AND NO IFR OPERATIONS ARE CONDUCTED; THR TO RY 2 IS DSPLCD 300 FT TO PROVIDE 20:1 APCH OVER PLINE; LARGEST CLASS OF ACFT USING ARPT IS LIMITED TO 12500 LBS GROSS TKOF WGT OR LESS, TWIN ENGINE, AND CTC IS MADE WITH ATCT AT BWI ARPT.
  • FOR CD CTC POTOMAC APCH AT 866-429-5882

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 4MD9 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.