KGRF · Gray Army Air Field

JOINT BASE LEWIS MCCHORD, WASHINGTON · MEDIUM AIRPORT

300

Elevation ft

Runway

6,124

Longest ft · 15/33

47.08N

122.58W

Gray Army Air Field serves Joint Base Lewis McChord, Washington at 300 ft elevation with its longest runway, 15/33, at 6,124 by 150 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 KGRF in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
15/33	6,124 × 150 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 300 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)	300 ft	2,497 ft	2,142 ft	3,212 ft
Warm day (ISA +10)	1,500 ft	2,731 ft	2,268 ft	3,402 ft
Hot day (ISA +20)	2,700 ft	2,965 ft	2,395 ft	3,592 ft
35°C afternoon	2,772 ft	2,979 ft	2,402 ft	3,604 ft

Planning aid only. Even on a 35°C afternoon the longest runway (15/33, 6,124 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,604 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: KGRF is not a field to divert to or buy fuel at.

Airport	Distance	Longest runway
KTIW Tacoma Narrows Airport	11 nm N	5,002 ft
KOLM Olympia Regional Airport	15 nm SW	5,500 ft
KSEA Seattle–Tacoma International Airport	25 nm NE	11,901 ft
KSHN Sanderson Field	25 nm W	5,005 ft
KPWT Bremerton National Airport	26 nm N	6,000 ft

04Fuel and services at KGRF

There is no public FBO fuel to log at KGRF. 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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