What happened
During the takeoff phase of an aerial application flight, the pilot reported that the flight controls felt "spongy" as the aircraft lifted off. The aircraft was unable to climb above an altitude of 25 feet before settling into a rough, uneven field located past the end of the runway. At the time of the accident, the temperature was 80 degrees Fahrenheit and the airport elevation was 2,528 feet MSL. The pilot did not jettison the load prior to the impact.
Findings
The pilot identified several contributing factors to the accident, including reduced engine efficiency, high heat and humidity, and little wind. Additionally, the aircraft was operating at its maximum gross weight, and the pilot noted that pilot fatigue was a factor in the event. There were no injuries reported.