KECS · Mondell Field

NEWCASTLE, WYOMING · SMALL AIRPORT

4,174

Elevation ft

Runway

5,310

Longest ft · 14/32

43.88N

104.31W

Mondell Field serves Newcastle, Wyoming at 4,174 ft elevation with its longest runway, 14/32, at 5,310 by 75 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.

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01Runways

Runway	Length × width	Surface	Lighting
14/32	5,310 × 75 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 4,174 ft is about 7°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, 7°C)	4,174 ft	3,252 ft	2,550 ft	3,826 ft
Warm day (ISA +10)	5,374 ft	3,486 ft	2,677 ft	4,015 ft
Hot day (ISA +20)	6,574 ft	3,720 ft	2,804 ft	4,205 ft
35°C afternoon	7,576 ft	3,916 ft	2,909 ft	4,364 ft

Planning aid only. Even on a 35°C afternoon the longest runway (14/32, 5,310 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (4,364 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 KECS is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KCUT Custer County Airport	31 nm E	5,500 ft
KSPF Black Hills Airport-Clyde Ice Field	42 nm NE	6,401 ft
KW43 Hulett Municipal Airport	48 nm N	5,500 ft
K49B Sturgis Municipal Airport	52 nm NE	5,100 ft

04Jet A prices and FBOs at KECS

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KECS, 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 KECS or read what a fuel stop actually saves.

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