The Hunt for Red October - Tom Clancy [92]
"The short version, Commander. I don't play with computers. I have people who do that for me."
"From seven to eighteen knots, the best bet is ten to twelve. With that speed range, you can figure a radiated noise level about the same as that of a Yankee doing six knots, but you'd have to factor reactor plant noise into that also. Moreover, the character of the noise will be different from what we're used to. These multiple impeller models don't put out normal propulsion noises. They seem to generate an irregular harmonic rumble. Did Jack tell you about this? It results from a backpressure wave in the tunnels. This fights the water flow, and that makes the rumble. Evidently there's no way around it. Our guys spent two years trying to find one. What they got was a new principle of hydrodynamics. The water almost acts like air in a jet engine at idle or low speed, except that water doesn't compress like air does. So, our guys will be able to detect something, but it will be different. They're going to have to get used to a wholly new acoustical signature. Add to that the lower signal intensity, and you have a boat that will be harder to detect than anything they have at this time."
"So that's what all this says." Greer riffled through the pages.
"Yes, sir. You'll want to have your own people look through it. The model—the program, that is—could stand a little improvement. I didn't have much time. Jack said you wanted this in a hurry. May I ask a question, sir?"
"You can try." Greer leaned back, rubbing his eyes.
"Is, ah, Red October at sea? That's it, isn't it? They're trying to locate her right now?" Tyler asked innocently.
"Uh huh, something like that. We couldn't figure what these doors meant. Ryan said you might be able to, and I suppose he was right. You've earned your money, Commander. This data might just enable us to find her."
"Admiral, I think Red October is up to something, maybe even trying to defect to the United States."
Greer's head came around. "Whatever makes you think that?"
"The Russkies have a major fleet operation in progress. They have subs all over the Atlantic, and it looks like they're trying to blockade our coast. The story is a rescue job for a lost boat. Okay, but Jack shows up Monday with pictures of a new missile boat—and today I hear that all of their other missile boats have been recalled to port." Tyler smiled. "That's kind of an odd set of coincidences, sir."
Greer turned and stared at the fire. He had just joined the DIA when the army and air force had pulled off the daring raid on the Song Tay prison camp twenty miles west of Hanoi. The raid had been a failure because the North Vietnamese had removed all of the captured pilots a few weeks before, something that aerial photographs could not determine. But everything else had gone perfectly. After penetrating hundreds of miles into hostile territory, the raiding force appeared entirely by surprise and caught many of the camp guards literally with their pants down. The Green Berets did a letter-perfect job of getting in and out. In the process they killed several hundred enemy troops, themselves sustaining a single casualty, a broken ankle. The most impressive part of the mission, however, was its secrecy. Operation KINGPIN had been rehearsed for months, and despite this its nature and objective had not been guessed by friend or enemy—until the day of the raid itself. On that day a young air force captain of intelligence went into his general's office to ask if a deep-penetration raid into North Vietnam had been laid on for the Song Tay prisoner-of-war camp. His astonished commander proceeded to grill the captain at length, only to learn that the bright young officer had seen enough disjointed bits and pieces to construct a clear picture of what was about to happen. Events like this gave security officers peptic ulcers.
"Red October's going to defect, isn't she?" Tyler persisted.
If the admiral had had more sleep he might have bluffed it out. As it was, his response was a mistake. "Did Ryan tell you this?"
"Sir,