KGDA · Marion-Crittenden County James C Johnson Regional Airport
Marion-Crittenden County James C Johnson Regional Airport serves Marion, Kentucky at 650 ft elevation with its longest runway, 07/25, at 5,001 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 |
|---|---|---|---|
| 07/25 | 5,001 × 75 ft | asphalt | lit |
02Density altitude and turboprop runway margins
Standard temperature at 650 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) | 650 ft | 2,565 ft | 2,179 ft | 3,268 ft |
| Warm day (ISA +10) | 1,850 ft | 2,799 ft | 2,305 ft | 3,458 ft |
| Hot day (ISA +20) | 3,050 ft | 3,033 ft | 2,432 ft | 3,648 ft |
| 35°C afternoon | 3,206 ft | 3,063 ft | 2,448 ft | 3,672 ft |
03Nearby fields with 5,000 ft or more
Useful as alternates, as fuel stops when the price at KGDA is high, or as the longer runway on a hot afternoon.
| Airport | Distance | Longest runway |
|---|---|---|
| KTWT Sturgis Municipal Airport | 14 nm NE | 5,000 ft |
| 2I0 Madisonville Regional Airport | 34 nm E | 6,051 ft |
| KEHR Henderson City County Airport | 35 nm NE | 7,095 ft |
| KHSB Harrisburg-Raleigh Airport | 35 nm NW | 5,013 ft |
| KPAH Barkley Regional Airport | 36 nm SW | 6,499 ft |
| KCEY Murray-Calloway County Airport Kyle-Oakley Field | 42 nm S | 6,202 ft |
04Jet A prices and FBOs at KGDA
No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KGDA, 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 KGDA or read what a fuel stop actually saves.