Maiden flight...... Dream and Reality

I had a maiden flight of my 3D printed Beechcraft 18 that had a bad start and an even worse ending. However once trimmedthe plain was flying quite nice. Sequence of events in video is obviously not true to reality. I still wonder what exactly caused the crash. 3D printen with LW-PLA AUW 179g turnigy 1811 2800kv motors 2s 300mAh lipo 3 servos 2,5 g