Float-Equipped Cessna 180A Overruns Short Seadrome (N5316D)

Incident Overview and Conditions A float-equipped Cessna 180A was departing to the northeast from a seadrome with a length of 1,400 feet. The pilot reported to the NTSB Investigator in Charge that winds were approximately four knots and the water surface was lightly rippled. ## Weight and Fuel Considerations The pilot stated that the fuel tanks were full and acknowledged that the fuel load could have been managed more effectively. The estimated takeoff weight for the aircraft was 2,813 pounds, which was close to the maximum allowable takeoff weight of 2,820 pounds. ## Takeoff Performance According to the pilot, the airplane achieved step normally but did not lift off the water before striking the bank at the end of the lake. The operator's handbook for the Cessna 180A indicated that the required water run for the reported takeoff conditions was 1,356 feet.