Airport information
- FAA LID
- D55
- Coordinates
- 48.7530, -98.3933
- Elevation
- 1,608 ft MSL
- Magnetic variation
- 7E
- Sectional chart
- TWIN CITIES
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3 · 118.225 · ☎ 701-256-2121
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- GRAND FORKS · 1-800-WX-BRIEF
- NOTAM facility
- GFK
- Attendance
- ALL ON CALL
- Beacon
- white-green (SS-SR)
- Segmented circle
- No
- Wind indicator
- lighted
- Activated
- 1938/03
- Distance from city
- 1 WSW
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-22
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:48 AM | 09:48Z |
| Sunrise | 05:31 AM | 10:31Z |
| Sunset | 09:40 PM | 02:40Z |
| Evening civil twilight Loggable night begins | 10:23 PM | 03:23Z |
Plan a flight from D55
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT PAPI RWY 14 & 32; MIRL RWY 14/32 - CTAF. on 122.8 — Chart Supplement ↗
Runway lighting aids — 14: 2-light PAPI (left) · 32: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 08 · 082°
- Pattern
- left (turns left)
- TPA
- 2,600 ft MSL (≈1,000 AGL)
- CTAF
- 122.8
Enter the left downwind for Rwy 08 at 2,600 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 08/26
1,930 ft × 100 ft · Turf (Good)- Heading
- 082° mag · 89° true
- Threshold elev
- 1,601 ft
- Markings
- none
- Traffic pattern
- Left
- TDZ elevation
- 1,602 ft
- Heading
- 262° mag · 269° true
- Threshold elev
- 1,601 ft
- Markings
- none
- Traffic pattern
- Left
- Approach obstacle
- Road, 14 ft, 265 ft from threshold, 0 ft B of centerline — 18:1 slope to clear · penetrates the 20:1 visual approach surface
- TDZ elevation
- 1,602 ft
Runway 14/32
3,600 ft × 60 ft · Asphalt (Good)- Heading
- 132° mag · 139° true
- Threshold elev
- 1,603 ft
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
- Threshold crossing height
- 28 ft
- TDZ elevation
- 1,606 ft
- Heading
- 312° mag · 319° true
- Threshold elev
- 1,608 ft
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
- Threshold crossing height
- 27 ft
- TDZ elevation
- 1,608 ft
| Runway | Length | Your margin |
|---|---|---|
| 08/26 | 1,930 ft | |
| 14/32 | 3,600 ft |
Communication frequencies
Tower & ground
| ASOS/AWOS | 118.225 |
| CTAF | 122.8 |
| UNICOM | 122.8 |
| Flight service | 132.15 (LOW) |
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 269.6 | GRAND FORKS RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns, hangars
- Other services
- Agricultural
Ownership & management
Remarks FAA
- RY 08/26 CLOSED WINTERS DUE TO LACK OF SNOW REMOVAL.
- LARGE BIRDS AND DEER ON & INVOF ARPT APR-NOV.
- CFM WINTER CONDS/SNOW REMOVAL WITH AMGR 701-370-9710.
- NOISE SENSITIVE AREA NW QUADRANT OF FIELD; AVOID OVERFLIGHT.
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -35C.
- ACTVT PAPI RWY 14 & 32; MIRL RWY 14/32 - CTAF.
- FOR SVCS AFT HRS CTC AMGR 701-370-9710.
- JOHN BOE, CHAIRMAN OF ARPT AUTH, ADDNL PHONE 701-370-2076.
- SELF SVC FUEL AVBL 24 HR WITH CREDIT CARD.
- +334 FT TWR 6550 FT FM THLD, 230 FT R OF EXTDD CNTRLN.
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 D55 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 D55
Robertson Field (D55) is an airport in Langdon, ND, at 1,608 ft MSL. It has 2 runways, the longest 3,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for D55, refreshed from the Aviation Weather Center and FAA NASR.
Does D55 have a control tower?
No. Robertson Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at D55?
Robertson Field has 2 runways; the longest is 3,600 ft. See the Runways tab for headings, surface, and lighting.
Where is D55?
Robertson Field is in Langdon, ND, at an elevation of 1,608 ft MSL. Coordinates: 48.7530, -98.3933.
Fly out of D55 often?
Save D55 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.