K2W6 · St. Mary's County Regional Airport

CALIFORNIA, MARYLAND · SMALL AIRPORT

142

Elevation ft

Runway

4,150

Longest ft · 11/29

38.32N

76.55W

St. Mary's County Regional Airport serves California, Maryland at 142 ft elevation with its longest runway, 11/29, at 4,150 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
11/29	4,150 × 75 ft	asphalt (good)	lit

02Density altitude and turboprop runway margins

Standard temperature at 142 ft is about 15°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, 15°C)	142 ft	2,466 ft	2,125 ft	3,187 ft
Warm day (ISA +10)	1,342 ft	2,700 ft	2,252 ft	3,377 ft
Hot day (ISA +20)	2,542 ft	2,934 ft	2,378 ft	3,567 ft
35°C afternoon	2,576 ft	2,940 ft	2,382 ft	3,573 ft

Planning aid only. Even on a 35°C afternoon the longest runway (11/29, 4,150 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,573 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 K2W6 is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KESN Easton Airport / Newnam Field	37 nm NE	5,500 ft
KDCA Ronald Reagan Washington National Airport	40 nm NW	7,169 ft

04Jet A prices and FBOs at K2W6

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at K2W6, 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 K2W6 or read what a fuel stop actually saves.

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