KGDW · Gladwin Zettel Memorial Airport

GLADWIN, MICHIGAN · SMALL AIRPORT

776

Elevation ft

Runways

4,699

Longest ft · 09/27

43.97N

84.47W

Gladwin Zettel Memorial Airport serves Gladwin, Michigan at 776 ft elevation with its longest runway, 09/27, at 4,699 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
09/27	4,699 × 75 ft	asphalt	lit
15/33	2,580 × 150 ft	turf	unlit

02Density altitude and turboprop runway margins

Standard temperature at 776 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)	776 ft	2,589 ft	2,192 ft	3,288 ft
Warm day (ISA +10)	1,976 ft	2,823 ft	2,318 ft	3,478 ft
Hot day (ISA +20)	3,176 ft	3,057 ft	2,445 ft	3,668 ft
35°C afternoon	3,362 ft	3,094 ft	2,465 ft	3,697 ft

Planning aid only. Even on a 35°C afternoon the longest runway (09/27, 4,699 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,697 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 KGDW is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KY31 West Branch Community Airport	21 nm NE	5,000 ft
KMOP Mount Pleasant Municipal Airport	24 nm SW	5,000 ft
KMBS MBS International Airport	31 nm SE	8,002 ft
KAMN Gratiot Community Airport	40 nm S	5,004 ft
KHYX Saginaw County H.W. Browne Airport	42 nm SE	5,002 ft

04Jet A prices and FBOs at KGDW

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

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