No, the Soviets couldn't get any of their engineering computation done either [1].

Later they were unable to do things like manufacture propellers for their submarines [2]. Not to mention the Gulf War.

[1] `The state of scientific computing was particularly backwards, with the CIA commenting that "to the Soviets, the acquisition of a single Western supercomputer would give a 10%–100% increase in total scientific computing power."[54]`

[2] https://en.wikipedia.org/wiki/Toshiba%E2%80%93Kongsberg_scan...