ICBM R-7 / P-7A (SS-6 Sapwood). USSR. Was in service in the 1961-1968.
1. The head part
2. The instrument compartment
3. Tanks oxidant
4. Tunnel pipe pipeline oxidant
5. Marching engine central unit
6. Aerodynamic wheel
7. Marching side engine block
8. The central unit
9. Side block
1. The head part
2. The instrument compartment
3. Tanks oxidant
4. Tunnel pipe pipeline oxidant
5. Marching engine central unit
6. Aerodynamic wheel
7. Marching side engine block
8. The central unit
9. Side block
Above are pictures of
the warhead for the first Soviet ICBM, the SS-6 "Sapwood" (official
Soviet designation "R-7" or "8-K-3"). The
"Sapwood" carried a heavy 10,000 lb. three-megaton warhead and on its
21 August 1957 test flight flew 4,000 miles from Kazakhstan into the western
Pacific Ocean. The SS-6 was deployed in 1958 and had a range of 8,500 kilometers
(5,270 statute miles).
The
"Sapwood" warhead was probably first tested in Soviet test No. 47, on
6 October 1957. This test conducted at the Novaya Zemlya Test Range was a 2.9
megaton airburst. This was the largest Soviet test up to that time, and only
the third Soviet test in the megaton range. Additional tests in 1958 with
yields of 2.9 and 2.8 Mt (18 October 1958 and 22 October 1958 respectively) may
also have been tests of this design.
Another possible escape route would have been to find a
plausible way to fight a nuclear war. This became harder rather than easier
with the growth of the nuclear stockpiles. So long as the numbers were small,
nuclear use would result in catastrophe but not necessarily a condition from
which recovery was impossible. Even up to the late 1950s Soviet leaders were
suggesting that the vast size of its territory and dispersal of its population
gave it a strategic advantage vis-á-vis the United States in any nuclear
exchange. Soon, however, they were reminding the Chinese that nuclear weapons
do not 'obey the class principle'. Chinese leader Mao Tse-tung was said to have
observed that even if 300,000 Chinese were killed, there would be another
300,000 ready to continue the fight. In his memoirs Khrushchev recalled a
conversation with Mao by the side of a swimming pool, in which he warned that
'with the atomic bomb, the number of troops on each side makes practically no
difference to the alignment of real power and to the outcome of a war. The more
troops on a side, the more bomb fodder.'
Equally important for Moscow was the reduced relevance of
distance. The routes into Russia were well trodden, but invaders had always
been thwarted, albeit at great cost. Long-range bombers and missiles could,
however, leap over Russia's vast hinterlands. During the 1950s a network of
Western air bases began to be established close to the Soviet borders from
which nuclear bombs and then medium-range missiles might be delivered. Soviet
leaders began to complain of encirclement. Soon it was clear that even
eliminating those hostile bases could not eliminate the threat. Long-range
ballistic missiles could deliver a lethal punch in minutes over many miles. It
was hard to see how this punch could be resisted.
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For the rest of the 1950s, encouraged by exaggerated claims
from Soviet leader Nikita Khrushchev and some worst-case analysis from the US
Air Force, there were regular claims that the Soviet Union was racing ahead in
ICBM production so that a 'missile gap' was developing that would leave the
United States too weak to cope with Soviet threats. Those urging a crash US
effort in all areas of high technology warned of the consequences of inferiority:
'What would the Americans find if they reached the moon?' a scientist was asked
during congressional hearings. 'The Russians!' he replied.
Meanwhile, in their dash to be the first with an ICBM, the
Russians had built an unwieldy system that could not be deployed in numbers.
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