KISW · Alexander Field South Wood County Airport

WISCONSIN RAPIDS, WISCONSIN · SMALL AIRPORT

1,021

Elevation ft

Runways

5,500

Longest ft · 02/20

44.36N

89.84W

Alexander Field South Wood County Airport serves Wisconsin Rapids, Wisconsin at 1,021 ft elevation with its longest runway, 02/20, at 5,500 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.

Open KISW in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
02/20	5,500 × 100 ft	asphalt	lit
11/29	3,640 × 50 ft	asphalt	lit
18/36	2,072 × 50 ft	graded earth	unlit

02Density altitude and turboprop runway margins

Standard temperature at 1,021 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)	1,021 ft	2,637 ft	2,218 ft	3,327 ft
Warm day (ISA +10)	2,221 ft	2,871 ft	2,344 ft	3,516 ft
Hot day (ISA +20)	3,421 ft	3,105 ft	2,471 ft	3,706 ft
35°C afternoon	3,666 ft	3,153 ft	2,497 ft	3,745 ft

Planning aid only. Even on a 35°C afternoon the longest runway (02/20, 5,500 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,745 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 KISW is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KSTE Stevens Point Municipal Airport	17 nm NE	6,028 ft
KMFI Marshfield Municipal Airport	22 nm NW	5,003 ft
KCWA Central Wisconsin Airport	26 nm N	7,723 ft
KAUW Wausau Downtown Airport	35 nm N	8,000 ft
KPCZ Waupaca Municipal Airport	35 nm E	5,200 ft

04Jet A prices and FBOs at KISW

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

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