K1M5 · Portland Municipal Airport

PORTLAND, TENNESSEE · SMALL AIRPORT

818

Elevation ft

Runway

5,003

Longest ft · 01/19

36.59N

86.48W

Portland Municipal Airport serves Portland, Tennessee at 818 ft elevation with its longest runway, 01/19, at 5,003 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.

Open K1M5 in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
01/19	5,003 × 100 ft	asphalt (good)	lit

02Density altitude and turboprop runway margins

Standard temperature at 818 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)	818 ft	2,598 ft	2,196 ft	3,294 ft
Warm day (ISA +10)	2,018 ft	2,832 ft	2,323 ft	3,484 ft
Hot day (ISA +20)	3,218 ft	3,066 ft	2,449 ft	3,674 ft
35°C afternoon	3,414 ft	3,104 ft	2,470 ft	3,705 ft

Planning aid only. Even on a 35°C afternoon the longest runway (01/19, 5,003 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,705 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 K1M5 is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KXNX Music City Executive Airport	13 nm S	6,300 ft
K3M7 Lafayette Municipal Airport	21 nm E	5,200 ft
KM91 Springfield Robertson County Airport	22 nm W	5,505 ft
KBWG Bowling Green Warren County Regional Airport	22 nm N	6,501 ft
KM54 Lebanon Municipal Airport	25 nm S	5,000 ft
KBNA Nashville International Airport	30 nm S	11,030 ft

04Jet A prices and FBOs at K1M5

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at K1M5, 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 K1M5 or read what a fuel stop actually saves.

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