Technique for Smoothing Free-Flight Oscillation Data

Martin E. Beyers* South African Council for Scientific and Industrial Research, Pretoria, South Africa vertical plane angles) are transformed to non-rolling coordinates ftj, oii, m d fitted with the tricyclic equation to obtain the basic linear solution. In STEP 2, residuals of the first tricycle are fitted with another tricycle and the process repeated as long as desired. After each pass a set of coordinates ftcj, oicj, Xc, y = l,2,.../i are generated at intervals Ax from the fitted coefficients. The smoothed data set ft,a,Xc is then found as the sum of the first tricycle and those determined in STEP 2, so that