K42M · Thayer Memorial Airport

THAYER, MISSOURI · SMALL AIRPORT

790

Elevation ft

Runway

4,200

Longest ft · 09/27

36.52N

91.57W

Thayer Memorial Airport serves Thayer, Missouri at 790 ft elevation with its longest runway, 09/27, at 4,200 by 50 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
09/27	4,200 × 50 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 790 ft is about 13°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, 13°C)	790 ft	2,592 ft	2,193 ft	3,290 ft
Warm day (ISA +10)	1,990 ft	2,826 ft	2,320 ft	3,480 ft
Hot day (ISA +20)	3,190 ft	3,060 ft	2,447 ft	3,670 ft
35°C afternoon	3,380 ft	3,097 ft	2,467 ft	3,700 ft

Planning aid only. Even on a 35°C afternoon the longest runway (09/27, 4,200 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,700 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 K42M is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KCVK Sharp County Regional Airport	15 nm S	5,158 ft
KUNO West Plains Regional Airport	27 nm NW	5,101 ft
KMNF Mountain View Airport	29 nm N	5,005 ft
KARG Walnut Ridge Regional Airport	39 nm SE	6,001 ft
KBPK Ozark Regional Airport	44 nm W	5,000 ft
KBVX Batesville Regional Airport	48 nm S	6,002 ft

04Jet A prices and FBOs at K42M

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at K42M, 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 K42M or read what a fuel stop actually saves.

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