The Smolensk Catastrophe in the Light of Physics Lows

A Tu-154M aircraft, or Tu-154, crashed on 10th April 2010 in Smolensk, USRR. The weather of that day was highly foggy, so the crew of plane had been thrown back totally on the ground navigation facilities. These - in turn - were in fatal conditions, e.g. the radar inaccuracy reached ± 10°. The paper presents 3 consecutive models of the critical events: the navigation model resulting in collision with a tree, the upside down and revolution model of the plane and the model of parts dispersion. The final conclusion is: the crash was caused by the extremely foggy weather and the fatal guidance of the plane by the ground facility. The Head Command have committed 3 faults: (1) illegal permission for the test landing, (2) no proper reaction after 1-st catastrophic trial and (3) no reaction after the similar 2-nd trial.