KW interview

[FPSOlkor]

Valezhka (made from Russian word Valit'sya) - a severe roll to one side at speeds close to maximum. Up untill 1952 the reason for it was not found, but once located it was rather quickly solved. The problem was in different aerodynamic qualities of the wings installed on one airplane. Result was not too important at low speed, but once speed reached M 0,9 it caused rolling. Not every aircraft suffered from this condition and it's severity and speed of occurance was also different. Eventually more strict control at the plants building airplanes helped to overcome tis problem.

Reversed aerilons is a condition when at high speed wings when aerilons are applied twist in opposite direction and thus, for example, the more you try to roll to the left, the more the plane rolls to the right.