Launch Profiles used by the Four-Stage Proton-K
P.S. Clark (2000), JBIS, 53, 197-214
The four-stage Proton-K launch vehicle was first proposed for launching commercial satellites for western customers in the mid-1980s, but because of international politics the first commercial launch did not take place until 1996. This paper reviews the launches of the four-stage Proton-K, concentrating on the various in-orbit launch profiles which have been flown.