Airports / 01IS

01IS — William E. Koenig Airport

Dow, US-IL · US · 670 ft MSL

Runways

1 runway · longest 1,300'

09 / 27

1,300' × 100'

Surface: Turf / Grass

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)

Elevation670' MSL

Longest Runway1,300'

SurfaceTURF

Coordinates 39.016, -90.318

Connect with experienced ferry pilots for domestic and international deliveries.