Incident Overview
On a waterway, a floatplane was being used for a training flight. The instructor intended to demonstrate the effect of additional weight on aircraft handling while on water. Two passengers boarded before the takeoff.
Sequence of Events
The student pilot initiated the takeoff run. The aircraft did not become airborne. The instructor took control when he realized that the aircraft was not lifting off. The floatplane overran the end of the waterway, which was 2600 feet long. It then went over an embankment and onto a land mass, where it nosed over.
Environmental Conditions
A tailwind of 5 knots was present at the time of the accident.
Damage
The aircraft sustained damage as a result of the overrun and nose-over.