KEFC · Belle Fourche Municipal Airport

BELLE FOURCHE, SOUTH DAKOTA · SMALL AIRPORT

3,191

Elevation ft

Runways

4,501

Longest ft · 14/32

44.73N

103.86W

Belle Fourche Municipal Airport serves Belle Fourche, South Dakota at 3,191 ft elevation with its longest runway, 14/32, at 4,501 by 60 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.

Open KEFC in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
14/32	4,501 × 60 ft	asphalt	lit
18/36	3,639 × 120 ft	turf	unlit

02Density altitude and turboprop runway margins

Standard temperature at 3,191 ft is about 9°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.

Conditions	Density altitude	Takeoff est.	Landing est.	Landing × 1.5
Standard day (ISA, 9°C)	3,191 ft	3,060 ft	2,447 ft	3,670 ft
Warm day (ISA +10)	4,391 ft	3,294 ft	2,573 ft	3,860 ft
Hot day (ISA +20)	5,591 ft	3,528 ft	2,700 ft	4,050 ft
35°C afternoon	6,357 ft	3,678 ft	2,781 ft	4,171 ft

Planning aid only. Even on a 35°C afternoon the longest runway (14/32, 4,501 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (4,171 ft needed). The percentages are a generic rule of thumb applied to one reference airplane, not certified performance data for any specific aircraft, and the runway size categories describe the runway, not your airplane's suitability. Verify with the approved flight manual before every flight.

03Nearby fields with 5,000 ft or more

Useful as alternates, as fuel stops when the price at KEFC is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KSPF Black Hills Airport-Clyde Ice Field	16 nm S	6,401 ft
K49B Sturgis Municipal Airport	28 nm SE	5,100 ft
KW43 Hulett Municipal Airport	30 nm W	5,500 ft
KRAP Rapid City Regional Airport	54 nm SE	8,701 ft

04Jet A prices and FBOs at KEFC

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KEFC, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KEFC or read what a fuel stop actually saves.

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