About when did a US/CCCP war become suicidal?

"John Schilling" wrote in message
...
"Carey Sublette" writes:

The fundamental reason why 'Ivan', the Tsar Bomba, had no relevance to
the
strategic balance was that it was undeliverable against the U.S. The
weight
of this bomb - 27 tonnes - was nearly equal to the Tu-95's maximum
payload,
and two and a half times its normal weapon load. Range of the Tu-95 was
already marginal for attacking the U.S. even with a normal bomb load.
Even
worse, since the bomb's dimensions - 2 meters wide and 8 meters long -
were
larger than the bomb bay could accommodate part of the fuselage had to be
cut away, and the bomb bay doors removed. The bomb was partially recessed
in
the plane, but not enclosed, with over half of it protruding in flight. A
deployed version of a Tsar Bomba carrier would of course had a bulging
bomb
bay enclosure added, but this would have further reduced range from the
drag.


Wouldn't a deployed Tsar Bomba carrier have been a militarized Proton,
aka UR-500 aka 8K82? The space launch version uses only storable
propellants, can put twenty tons into low orbit with the smallest
fairing easily holding a 2 x 8 meter payload, and my references on
the space launch side claim that it was developed with the ICBM role
and the Tsar Bomba payload in mind from the start (1961).

Which was a stupid idea from the start, and so never implemented,
but rather less stupid than trying to send an overladen Bear across
the arctic.

The only references I recall seeing for models that were actually made were
bomb versions. They could have been used against NATO (but this has nothing
to do with MAD).

It seems likely that they investigated the Proton idea since it is the only
way to get it to America. Do you know of any attempts to develop an RV for
this? Can you give me any specific citations?