Discussion of "The long span problem in the analysis of conductor vibration damping" and closure

K.O. Papailiou and U. Cosmai comment on the paper by C.B. Rawlins (see ibid., vol.15, no.2, p.740-76, 2000). They ask for more details on two particular aspects of aeolian vibration of long spans, beats and vibration amplitude. The original author repsonds to the comments.