Airports / O12

O12 — Grand Lake St Marys Seaplane Base

St Marys, US-OH · US · 871 ft MSL

Runways

1 runway · longest 7,000'

09 / 27

7,000' × 4000'

Surface: Water

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)

Elevation871' MSL

Longest Runway7,000'

SurfaceWATER

Coordinates 40.541, -84.491

Connect with experienced ferry pilots for domestic and international deliveries.