KDFI · Defiance Memorial Airport

DEFIANCE, OHIO · SMALL AIRPORT

707

Elevation ft

Runway

4,199

Longest ft · 12/30

41.34N

84.43W

Defiance Memorial Airport serves Defiance, Ohio at 707 ft elevation with its longest runway, 12/30, at 4,199 by 72 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
12/30	4,199 × 72 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 707 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)	707 ft	2,576 ft	2,185 ft	3,277 ft
Warm day (ISA +10)	1,907 ft	2,810 ft	2,311 ft	3,467 ft
Hot day (ISA +20)	3,107 ft	3,044 ft	2,438 ft	3,657 ft
35°C afternoon	3,277 ft	3,077 ft	2,456 ft	3,684 ft

Planning aid only. Even on a 35°C afternoon the longest runway (12/30, 4,199 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,684 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 KDFI is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KGWB De Kalb County Airport	29 nm W	7,106 ft
KVNW Van Wert County Airport	30 nm S	5,000 ft
KTOL Eugene F. Kranz Toledo Express Airport	32 nm NE	10,600 ft
KADG Lenawee County Airport	35 nm NE	5,001 ft
KJYM Hillsdale Municipal Airport	36 nm N	5,000 ft
KFDY Findlay Airport	39 nm SE	6,499 ft

04Jet A prices and FBOs at KDFI

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

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