KGDB · Granite Falls Municipal Airport / Lenzen-Roe Memorial Field
Granite Falls Municipal Airport / Lenzen-Roe Memorial Field serves Granite Falls, Minnesota at 1,047 ft elevation with its longest runway, 15/33, at 4,357 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 |
|---|---|---|---|
| 15/33 | 4,357 × 75 ft | asphalt | lit |
02Density altitude and turboprop runway margins
Standard temperature at 1,047 ft is about 13°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, 13°C) | 1,047 ft | 2,642 ft | 2,220 ft | 3,331 ft |
| Warm day (ISA +10) | 2,247 ft | 2,876 ft | 2,347 ft | 3,521 ft |
| Hot day (ISA +20) | 3,447 ft | 3,110 ft | 2,474 ft | 3,710 ft |
| 35°C afternoon | 3,698 ft | 3,159 ft | 2,500 ft | 3,750 ft |
03Nearby fields with 5,000 ft or more
Useful as alternates, as fuel stops when the price at KGDB is high, or as the longer runway on a hot afternoon.
| Airport | Distance | Longest runway |
|---|---|---|
| KMML Southwest Minnesota Regional Airport - Marshall/Ryan Field | 21 nm SW | 7,221 ft |
| KBDH Willmar Municipal Airport John L Rice Field (2006) | 28 nm NE | 5,500 ft |
| KULM New Ulm Municipal Airport | 52 nm SE | 5,401 ft |
| KBKX Brookings Regional Airport | 60 nm SW | 6,000 ft |
| KOTG Worthington Municipal Airport | 66 nm S | 5,500 ft |
| KAXN Chandler Field | 67 nm N | 5,099 ft |
04Jet A prices and FBOs at KGDB
No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KGDB, 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 KGDB or read what a fuel stop actually saves.