Airports / KRPX

KRPX — Roundup Airport

Roundup, US-MT · US · 3,500 ft MSL · IATA: RPX

IFR Capable

Runways

2 runways · longest 5,098'

07 / 25 Lighted

5,098' × 75'

Surface: Asphalt Headings: 78° / 258° T

16 / 34

2,460' × 100'

Surface: Turf / Grass Headings: 168° / 348° T

UNIC 122.800 CTAF/UNICOM

Select an aircraft to see density altitude estimates

Look up by Tail Number (N-Number) — auto-fills make & model

or select make & model manually

Manufacturer

Model

Outside Air Temp (°C) — blank = ISA standard

What you'll get:

· Density altitude calculation

· Power retained at this elevation/temperature

· Estimated takeoff roll increase

· Climb rate estimate

· Full scenario table (ISA-10 through ISA+40)

Elevation3,500' MSL

Longest Runway5,098'

SurfaceASP

Coordinates 46.475, -108.541

Landing fee unknown

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