KCMR · H.A. Clark Memorial Field

WILLIAMS, ARIZONA · SMALL AIRPORT

6,680

Elevation ft

Runway

6,003

Longest ft · 18/36

35.31N

112.19W

H.A. Clark Memorial Field serves Williams, Arizona at 6,680 ft elevation with its longest runway, 18/36, at 6,003 by 100 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
18/36	6,003 × 100 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 6,680 ft is about 2°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, 2°C)	6,680 ft	3,741 ft	2,815 ft	4,222 ft
Warm day (ISA +10)	7,880 ft	3,975 ft	2,941 ft	4,412 ft
Hot day (ISA +20)	9,080 ft	4,209 ft	3,068 ft	4,602 ft
35°C afternoon	10,683 ft	4,522 ft	3,237 ft	4,856 ft

Planning aid only. Even on a 35°C afternoon the longest runway (18/36, 6,003 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (4,856 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 KCMR is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KFLG Flagstaff Pulliam Airport	28 nm E	8,800 ft
KSEZ Sedona Airport	34 nm SE	5,132 ft
KGCN Grand Canyon National Park Airport	39 nm N	8,999 ft
KPRC Prescott Regional Airport - Ernest A. Love Field	41 nm S	7,619 ft
KT03 Tuba City Airport	62 nm NE	6,230 ft
KINW Winslow Lindbergh Regional Airport	74 nm E	7,499 ft

04Jet A prices and FBOs at KCMR

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

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