KFRI · Marshall Army Air Field

FORT RILEY (JUNCTION CITY), KANSAS · MEDIUM AIRPORT

1,065

Elevation ft

Runway

4,503

Longest ft · 04/22

39.05N

96.76W

Marshall Army Air Field serves Fort Riley (Junction City), Kansas at 1,065 ft elevation with its longest runway, 04/22, at 4,503 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.

Military airfield. This is a military airfield in the FAA file. It is listed here for reference and for emergency planning. Civil use needs prior permission, there is no FBO, and no Jet A you can buy. Do not plan it as a fuel stop or a routine alternate.

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

01Runways

Runway	Length × width	Surface	Lighting
04/22	4,503 × 100 ft	concrete	lit

02Density altitude and turboprop runway margins

Standard temperature at 1,065 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)	1,065 ft	2,646 ft	2,222 ft	3,334 ft
Warm day (ISA +10)	2,265 ft	2,880 ft	2,349 ft	3,523 ft
Hot day (ISA +20)	3,465 ft	3,114 ft	2,476 ft	3,713 ft
35°C afternoon	3,721 ft	3,164 ft	2,503 ft	3,754 ft

Planning aid only. Even on a 35°C afternoon the longest runway (04/22, 4,503 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,754 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

Listed for reference only: KFRI is not a field to divert to or buy fuel at.

Airport	Distance	Longest runway
KMHK Manhattan Regional Airport	7 nm NE	7,400 ft
KSLN Salina Municipal Airport	44 nm W	12,301 ft
KEMP Emporia Municipal Airport	51 nm SE	5,005 ft
KFOE Topeka Regional Airport	52 nm E	12,803 ft
KTOP Philip Billard Municipal Airport	53 nm E	5,099 ft
KMPR Mc Pherson Airport	60 nm SW	5,503 ft

04Fuel and services at KFRI

There is no public FBO fuel to log at KFRI. JetDesk collects Jet A prices that pilots actually paid, at civil fields, and its route finder leaves military and private-use fields out of every ranking. Read what a fuel stop actually saves.

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