Twin Falls

Check pilot was conducting captain proficiency check on another company pilot (pic) under dark night conditions. Subsequent to full stop landing on runway 25, takeoff checklist was recited. PIC commenced takeoff on runway 07. Check pilot simulated V1 engine cut after liftoff. PIC was unable to accelerate to V2, climb, or maintain directional control. Aircraft levelled off, air speed began to decay and aircraft drifted to the right. Check captain failed to take control or terminate engine cut simulation as evolution deteriorated. Aircraft collided with ILS glideslope tower marked by red obstruction lights. Loss of control followed when right wingtip/aileron separated. Aircraft then impacted ground and slid to a stop. Takeoff flap position should be 1/4. Both flaps found near 1/2 flap extended position. Handle found in 1/2 flap detent. Performances charts show aircraft able to reach V2 at 50 feet altitude in 6,500 feet roll, then +575 fpm climb (vyse) at acc wt.

The pilot, who had limited experience on Carvair aircraft, possibly wanted to touch down as early as possible on the short runway. The main wheels however struck the top of an embankment about 8 feet from the runway threshold. The pilot overshoot and had to feather the no. 2 prop immediately, because the engine was not developing power. The aircraft circled for a while and then touched down on its nosegear. The plane settled on the left wing and swung off the runway.