KOCH · A L Mangham Jr. Regional Airport

NACOGDOCHES, TEXAS · SMALL AIRPORT

355

Elevation ft

Runway

5,000

Longest ft · 18/36

31.58N

94.71W

A L Mangham Jr. Regional Airport serves Nacogdoches, Texas at 355 ft elevation with its longest runway, 18/36, at 5,000 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
18/36	5,000 × 75 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 355 ft is about 14°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, 14°C)	355 ft	2,507 ft	2,147 ft	3,221 ft
Warm day (ISA +10)	1,555 ft	2,741 ft	2,274 ft	3,411 ft
Hot day (ISA +20)	2,755 ft	2,975 ft	2,401 ft	3,601 ft
35°C afternoon	2,840 ft	2,992 ft	2,410 ft	3,614 ft

Planning aid only. Even on a 35°C afternoon the longest runway (18/36, 5,000 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,614 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 KOCH is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KLFK Angelina County Airport	21 nm S	5,400 ft
KJSO Cherokee County Airport	31 nm NW	5,006 ft
KF17 Center Municipal Airport	32 nm NE	5,501 ft
KGGG East Texas Regional Airport	48 nm N	10,000 ft
KPSN Palestine Municipal Airport	52 nm W	5,005 ft

04Jet A prices and FBOs at KOCH

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

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