FD48 · Deep Forest Airport

JACKSONVILLE, FLORIDA · SMALL AIRPORT

Elevation ft

Runway

6,425

Longest ft · 18/36

30.24N

81.45W

Deep Forest Airport serves Jacksonville, Florida at 24 ft elevation with its longest runway, 18/36, at 6,425 by 60 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	6,425 × 60 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 24 ft is about 15°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, 15°C)	24 ft	2,443 ft	2,113 ft	3,169 ft
Warm day (ISA +10)	1,224 ft	2,677 ft	2,239 ft	3,359 ft
Hot day (ISA +20)	2,424 ft	2,911 ft	2,366 ft	3,549 ft
35°C afternoon	2,430 ft	2,912 ft	2,366 ft	3,550 ft

Planning aid only. Even on a 35°C afternoon the longest runway (18/36, 6,425 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,550 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 FD48 is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KSGJ Northeast Florida Regional Airport	18 nm S	12,000 ft
KJAX Jacksonville International Airport	19 nm NW	10,000 ft
KVQQ Cecil Airport	22 nm W	12,504 ft

04Jet A prices and FBOs at FD48

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at FD48, 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 FD48 or read what a fuel stop actually saves.

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