The primary high-pressure reactor coolant pump was beginning to vibrate ominously. This was particularly worrying to the engineer. There was a backup, but the secondary pump had a lower rated power, and using it meant losing eight knots of speed. The Alfa plant achieved its high power not with a sodium-cooled system—as the Americans thought—but by running at a far higher pressure than any reactor system afloat and using a revolutionary heat exchange system that boosted the plant's overall thermal efficiency to forty-one percent, well in excess of that for any other submarine. But the price of this was a reactor that at full power was red-lined on every monitor gauge—and in this case the red lines were not mere symbolism. They signified genuine danger.

This fact, added to the vibrating pump, had Petchukocov seriously concerned; an hour earlier he had pleaded with the captain to reduce power for a few hours so that his skilled crew of engineers could make repairs. It was probably only a bad bearing, after all, and they had spares. The pump had been designed so that it would be easy to fix. The captain had wavered, wanting to grant the request, but the political officer had intervened, pointing out that their orders were both urgent and explicit: they had to be on station as quickly as possible; to do otherwise would be "politically unsound." And that was that.

Petchukocov bitterly remembered the look in his captain's eyes. What was the purpose of a commanding officer if his every order had to be approved by a political flunky? Petchukocov had been a faithful Communist since joining the Octobrists as a boy—but damn it! what was the point of having specialists and engineers? Did the Party really think that physical laws could be overturned by the whim of some apparatchik with a heavy desk and a dacha in the Moscow suburbs? The engineer swore to himself.