Skywagon 185
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Commercial; Flight Crew Private
Flight Crew Last 90 Days 60; Flight Crew Total 2100; Flight Crew Type 50
Human-Machine Interface
Ground Event / Encounter Other / Unknown
General Evacuated
Aircraft; Human Factors
1974 C185 on EDO 2790 Amphib floats; 2 people on board; 70 gallons of fuel (5 knot wind to calm). After water landing; I taxied on lake for 15 minutes then went to beach to shut down; pumped the floats. I then started up; idle taxied toward center of lake; cleared area to begin a step taxi run. As soon as power was applied the prop struck water and aircraft nosed over. There was ample time to evacuate. EDO 2790 may be marginal for the C185.
Pilot of C185 on floats reports the aircraft nosing over when power is added to begin a step taxi. The reporter believes that the floats may be undersized for the C185.