SSN - Tom Clancy [55]
Mack had the torpedoes fired two at a time, tubes one and two first, then tubes three and four. He did this twice, and the procedure didn't take long. Cheyenne had recently had lots of experience loading and firing torpedoes, and that experience paid off.
"Conn, sonar, we just got another sonar contact," the sonar supervisor said as the last two Mk 48s were launched. "A single Huchuan torpedo boat is heading our way. The noise level indicates it's running at full speed."
Mack had been briefed on the Huchuan hydrofoils and knew that the Chinese had more than seventy of them in service. He also knew that these small ships could reach speeds of more than fifty knots. The Huchuan was designated Master 53.
"What's the range to the Huchuan, Master 53?" asked Mack.
"We can't tell, Captain," the fire-control coordinator answered. 'The water's too shallow and we can't do an accurate TMA on the boat. Bearings are coming in over a twenty-degree spread."
"Well, then," Mack said, "we have no choice. We have to go active."
This was one of the rare times Mack could feel right using his BSY-1 sonar system in an active mode. For one thing, the Chinese already knew where they were. Eight torpedoes on essentially the same bearing were a dead giveaway. Besides, he knew that any Chinese vessels with sonar in the area would be concentrating on the eight Mk 48s headed for the naval depot under the abandoned oil rig. With luck, they would be more worried about that and wouldn't care about Cheyenne's rushed getaway.
The Huchuan hydrofoil coming their way was Mack's biggest concern at the moment, but the hydrofoils had no sonar. Without a sonar, they would be unable to determine if Cheyenne was active, or even if she launched a torpedo in their direction.
Cheyenne's active sonar pings echoed through the hull. Being foil-borne, sonar was actually tracking the wake it generated, not the Huchuan itself. But that was enough for a "down-the-throat" shot.
When Cheyenne's sonar went active, Mack was able to acquire an accurate firing solution to the Chinese patrol boat. He ordered tube one fired at the Chinese Huchuan. The Mk 48 was set to detonate, at a depth of ten feet, just beneath the foils.
The Huchuan, without a sonar system, was unaware that a torpedo was heading its way and continued on in the direction they expected Cheyenne to be. The captain of the hydrofoil had calculated Cheyenne's position correctly-but that was also the same direction from which the latest Mk 48 was coming. This brought them closer and closer to the oncoming torpedo, closing rapidly at a combined speed of over one hundred knots.
"Conn, sonar, our Mk 48 just detonated beneath the PT boat."
The Huchuan went airborne, propelled by the force of the water exploding up from beneath it. It rotated in a spiral as it flew, killing those sailors aboard without seat belts as they were thrown around like "BBs in a boxcar." Moments later, those who had seat belts-mostly bridge personnel-were killed instantly when the boat finally hit the water, upside down, at fifty knots.
When sonar also reported eight extremely large explosions followed by a dozen smaller ones, Mack went to periscope depth and then broached to get the periscope high enough to visually assess the damage.
Mack was pleased with what he saw. They had blown up two Chinese submarines, Masters 49 and 50, two missile patrol boats, Masters 51 and 52, and a torpedo hydrofoil, Master 53. Most important, though, the Chinese naval depot was no longer usable, with fires raging on the platform as it tilted into the sea.
Cheyenne's captain grinned fiercely, pride in his ship and his crew welling up within him. They'd been given a difficult assignment, and once again they'd carried it out.
He was about to order Cheyenne to resume her patrol, heading southeast, out of the islands, when the executive officer walked up to Mack, bringing with him a quiet sense of urgency.
"Captain,"