K42J · Keystone Heights Airport

KEYSTONE HEIGHTS, FLORIDA · SMALL AIRPORT

196

Elevation ft

Runways

5,044

Longest ft · 05/23

29.84N

82.05W

Keystone Heights Airport serves Keystone Heights, Florida at 196 ft elevation with its longest runway, 05/23, at 5,044 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.

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01Runways

Runway	Length × width	Surface	Lighting
05/23	5,044 × 100 ft	asphalt (good)	lit
11/29	4,899 × 75 ft	asphalt (good)	lit

02Density altitude and turboprop runway margins

Standard temperature at 196 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)	196 ft	2,476 ft	2,131 ft	3,196 ft
Warm day (ISA +10)	1,396 ft	2,710 ft	2,257 ft	3,386 ft
Hot day (ISA +20)	2,596 ft	2,944 ft	2,384 ft	3,576 ft
35°C afternoon	2,643 ft	2,953 ft	2,389 ft	3,583 ft

Planning aid only. Even on a 35°C afternoon the longest runway (05/23, 5,044 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,583 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 K42J is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KGNV Gainesville Regional Airport	15 nm SW	7,504 ft
K28J Palatka Municipal - Lt. Kay Larkin Field	22 nm SE	6,000 ft
KVQQ Cecil Airport	24 nm N	12,504 ft

04Jet A prices and FBOs at K42J

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at K42J, 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 K42J or read what a fuel stop actually saves.

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