Patent ID: 7161501

Claim:
A method of displaying flight parameters of an aircraft in flight, the method comprising: providing an estimate or measurement of a value (referred to as an “estimated value”) of a present flight parameter value, FP(t n ) for an aircraft during a selected phase of a flight, at each of a first sequence of times, t=t n (n=1, . . . , N; N≧2), providing and displaying a percentage band of historical data FP(t n ;hist;m) (m=1, . . . , M; M≧2) for the flight parameter of interest, drawn from FP values for M flights under similar conditions and including no more than a selected percentage p of the M flights, with p<100 percent; determining if the present FP value for the measurement time t n lies within the percentage band; and when the present FP value does not lie within the percentage band, displaying the present FP value and the percentage band for the measurement time t n in at least one of a visually perceptible and an audibly perceptible manner.