During the last five decades the great majority of Russian spacecraft have
been pushed into space by variations of two launch vehicles. For the purposes
of this guide they are referred to as the R-7 and the UR-500/Proton.
Although
there have been others, these two designs have proven to be so tough and versatile
that they have carried the lion’s share of the payloads.
The R-7 has been the manned launch vehicle since 1961 and has been lofting
unmanned payloads since 1957, while the UR-500/Proton has been the principal
unmanned heavy launcher since 1965.The R-7 has undergone at least four major
upgrades and countless minor revisions.
The first upgrade added a third stage
which sent Luna I to the moon and lofted Yuri Gagarin’s Vostok 1nto the history
books. The next upgrade turned it into the Voskhod launcher that carried the
first three-man crew. Mars and Venus probes required the addition of a fourth
stage and so the R-7 became known as the Molniya. Finally, a fourth major
overhaul turned it into the Soyuz and Progress launcher used today. The R-7
was often renamed after each upgrade while, despite the addition of a variety
of upper stages and payloads, the UR-500 has remained the Proton since its
first space launch.
The reader may also be confused by the tendency to rename space craft. The
generic term Cosmos was used for hundreds of satellites and probes but if
the spacecraft performed some important historic function it would often be
renumbered and renamed.
Navigating the labyrinth of people, places and organizations that comprised
the world’s first space program is a task that would easily have confounded
Theseus. Compounding the problem is the Russian propensity for renaming things
and shifting responsibilities from one factory to another. The names of the
factories, spacecraft, rockets, launch facilities and even towns have changed,
and all of this is further complicated by most of the story taking place behind
a wall of secrecy that lasted for nearly forty years. Rather than confuse
the reader with the constantly shifting dominions of the various design bureaus,
some names have been simplified or deliberately omitted.
This guide is divided into several, topical Parts (similar to book
chapters), that are arranged (roughly) in the chronological order of the
Soviet/Russian Space Program.