An experimental study about the effect of thresholds on C.G. acceleration countings obtained from a military airplane

C.G. vertical accelerations of a military airplane which have been recorded continously on magnetic type during flight operation in two types of missions were analyzed statistically by means of a digital computer, in which the different counting procedures of acceleration counting systems (Fatigue-meters) as used by various countries for fatigue life monitoring of aircraft were simulated. The results are presented in form of cumulative frequency distributions and have bee criticaly valued.