Circumstances:
The pilot reported that he had flown one practice crosswind circuit and landing and was taking off for a second circuit when the left engine failed. The aircraft was about 20 feet off the ground, and the landing gear was still down. The pilot feathered the left propeller but then considered that he could still land safely straight ahead on the remaining runway. He selected full flap, but they did not extend because hydraulic pressure was not available as the failed left engine was not driving the hydraulic pump. The aircraft floated for some time and then touched down. The pilot applied full braking but was not able to prevent the aircraft from over-running the end of the strip and entering an area of button grass. The aircraft came to rest with the nose gear collapsed. A fire, which destroyed most of the aircraft, broke out in the area of the left engine. A detailed examination of the left engine did not disclose the reason for the power loss.
