Tu-154 which made an emergency landing at the airport of Domodedovo on December 4, was landing with major vertical overload, exceeding the norm 3 or 5 fold, RIA Novosti reports, citing the Interstate Aviation Committee (IAC).
Vertical overload is the ratio between the lift and the heaviness of an aircraft. Normal vertical overload is 1.33. A 60 degrees roll gives an overload of 2. A roll of 70 degrees gives a 3-fold overload. Strong streams during the roll may cause problems by increasing the overload multifold.
The science and technical laboratory of the IAC analyzed the information from the flight recorder KZ-63. The analysis show that the first contact had an overload of 3.5g, the next contact (landing) registered 5g", the message says.
Specialists from the IAC prepared a scheme of the scatter of the plane, basing on studies of the area and photos and videos of the accident.
Tu-154 of the Dagestan Airlines was flying from Moscow to Makhachkala. It made an emergency landing at the Moscow airport of Domodedovo on November 4. When landing the plane went off the runway and hit an earth hill, breaking its fuselage. There were 163 passengers on board and 9 crew members. Two people died, over 80 were injured.
