KAMN · Gratiot Community Airport

ALMA, MICHIGAN · SMALL AIRPORT

754

Elevation ft

Runways

5,004

Longest ft · 09/27

43.32N

84.69W

Gratiot Community Airport serves Alma, Michigan at 754 ft elevation with its longest runway, 09/27, at 5,004 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.

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

01Runways

Runway	Length × width	Surface	Lighting
09/27	5,004 × 75 ft	asphalt	lit
18/36	3,198 × 75 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 754 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)	754 ft	2,585 ft	2,190 ft	3,284 ft
Warm day (ISA +10)	1,954 ft	2,819 ft	2,316 ft	3,474 ft
Hot day (ISA +20)	3,154 ft	3,053 ft	2,443 ft	3,664 ft
35°C afternoon	3,335 ft	3,088 ft	2,462 ft	3,693 ft

Planning aid only. Even on a 35°C afternoon the longest runway (09/27, 5,004 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,693 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 KAMN is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KMOP Mount Pleasant Municipal Airport	18 nm N	5,000 ft
KMBS MBS International Airport	29 nm NE	8,002 ft
KLAN Capital Region International Airport	33 nm S	8,506 ft
KHYX Saginaw County H.W. Browne Airport	37 nm E	5,002 ft
KGRR Gerald R. Ford International Airport	45 nm SW	10,001 ft
KFNT Bishop International Airport	46 nm SE	7,852 ft

04Jet A prices and FBOs at KAMN

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

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