The pilot stated that, before starting the engine by manually rotating the propeller, he set the brakes, throttle, and trim. He exited the airplane and proceeded to rotate the propeller. When the engine started, it went to full rpm, and the airplane started to move forward on the taxiway at a high speed.
The pilot of the skydiving airplane was performing the first takeoff of the day, and he had just raised the landing gear when the airplane experienced a complete loss of power in one of its two engines. There was still runway remaining, and the pilot made the decision to abort the takeoff.