KGAO · South Lafourche Leonard Miller Jr Airport

GALLIANO, LOUISIANA · SMALL AIRPORT

Elevation ft

Runway

6,500

Longest ft · 18/36

29.44N

90.26W

South Lafourche Leonard Miller Jr Airport serves Galliano, Louisiana at 1 ft elevation with its longest runway, 18/36, at 6,500 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
18/36	6,500 × 100 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 1 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)	1 ft	2,438 ft	2,110 ft	3,165 ft
Warm day (ISA +10)	1,201 ft	2,672 ft	2,237 ft	3,355 ft
Hot day (ISA +20)	2,401 ft	2,906 ft	2,363 ft	3,545 ft
35°C afternoon	2,401 ft	2,906 ft	2,363 ft	3,545 ft

Planning aid only. Even on a 35°C afternoon the longest runway (18/36, 6,500 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,545 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 KGAO is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KHUM Houma Terrebonne Airport	22 nm W	6,509 ft
KMSY Louis Armstrong New Orleans International Airport	33 nm N	10,104 ft
KNEW Lakefront Airport	38 nm N	6,879 ft
KAPS Port of South Louisiana Executive Regional Airport	42 nm NW	5,151 ft

04Jet A prices and FBOs at KGAO

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

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