Despite the advances in underwater travel in recent years, no one has yet developed an effective means of transmitting messages between two vehicles in the water. The highly touted extra long wavelength electromagnetic (ELF) communications network performed well for base-to-CSAC communications, but was not much use for base-to-vehicle or vehicle-to-vehicle transmissions.
“Granted, signal Benthic Ranger One,” said Messinger.
Westerman activated the semaphore attached to the outside hull of Benthic Ranger Two. In International Morse Code, Westerman tapped out, “Danger. Unknown approaching from the rear. Danger.”
Westerman repeated this message over and over again.
He was too late.
“Tommy, what the hell was that?” screamed O’Shaunnessy, as the large black object jetted past the starboard window of Benthic Ranger One. Dirks turned to see the object, but the thing had already disappeared.
Due to the size and speed of the mysterious vehicle, violent eddy currents were established in its wake. This hydrodynamic phenomenon is similar to the whirlpools that are formed by rivers rushing past bridge pilings. Benthic Ranger One was caught up in the eddies and shook tremendously. The control wheel vibrated with such force that Dirks thought it was going to rip his hands off.
If Dirks and O’Shaunnessy hadn’t followed procedures and had not stowed everything away, chaos would have prevailed. As it was, the operating manual and some other loose objects went sailing across the cabin as the Benthic Ranger was tossed about like driftwood in a crashing wave. Dirks and O’Shaunnessy were strapped into their seats with both shoulder harnesses and a lap belt. Even so, their bodies felt the strain of the powerful force of the eddy, a hydraulic tornado.
As the bucking and twisting subsided, Dirks struggled to regain control of his Benthic Ranger.
“Tommy, look out.” screamed O’Shaunnessy.
The Benthic Ranger stopped spinning in time to directly confront the mysterious black object now about fifty yards in front of them. Although Dirks thought he could see a window, he was not sure. All he could be certain of was the glassy black appearance of this object now confronting him and O’Shaunnessy.
“Jimmie, ready the uranium torpedo for firing.”
“Torpedo armed and ready, sir.”
“Fire on three. One, two, three, fire.”
“Torpedo away, sir.”
The hard-tipped depleted uranium torpedo was designed to cause damage by both the momentum of the heavy uranium tip and by a subsequent explosion of the conventional warhead behind the uranium head. Dirks and O’Shaunnessy watched as the torpedo sped toward the enemy, leaving a cavitation trail through the water.
The torpedo struck. Instantly, a billowing cloud of steam and sediment mushroomed from the point of impact. In the relative stillness of the bottom, the sediment cloud hung suspended, obscuring Dirk’s and O’Shaunnessy view.
“Nothing could have survived that torpedo,” said O’Shaunnessy.
Dirks intently stared into the darkness. “Stay alert.”
From the static cloud of benthic sediment, the black nose of their adversary gradually came into focus. The mysterious vessel moved slowly but steadily toward Benthic Ranger One.
“Did you see that, Tommy?”
“Holy shit,” said Dirks.
“Fire the laser cannon.”
“Laser fired,” responded O’Shaunnessy. The blue green beam struck the mysterious craft. The craft hesitated for a moment, but continued its steady forward movement like a hawk going for the kill.
“Let’s get the hell out of here,” said Dirks as he turned the control wheel fully to the right.
The propellers on Benthic Ranger One turned with intense energy as Dirks gave them all the juice they could swallow. Both Dirks and O’Shaunnessy were pushed back into their seats as the Benthic Ranger executed a sharp right bank.
Simultaneously, the mysterious vessel gathered speed and fired a focused sonic pulse at the fleeing submersible. The narrow focused shock wave caught the Benthic Ranger in its left rear quadrant. The bundled energy of the focused sonar vibrated the outer hull of the Benthic Ranger and penetrated to the pressure hull. Inside the Benthic Ranger, Dirks and O’Shaunnessy fought hard to maintain control of the vessel.
The sonic boom shattered the Benthic Ranger’s outer fairing, then the Benthic Ranger’s control system. The pulse vibrated welded fittings until they cracked due to the multi-cycled harmonic mechanical stress and ruptured. Hydraulic fluid sprayed out, at first in a fountain of reddish fluid, like a wounded whale. As the reservoir of hydraulic fluid in the Benthic Ranger diminished, the spraying oil subsided and was reduced to a mere trickle. With loss of hydraulic fluid, the control wheel in Dirks’ hands became useless. The electrically driven propellers continued to turn, driving the Benthic Ranger forward.
The loss of rudder and diving plane control resulted in a crippled Benthic Ranger, unable to perform its mission.
“Shut down the reactor,” said Dirks.
“Aye, aye, sir.”
As boron rods were mechanically inserted into the reactor in fail-safe mode, the chain reaction ramped down to a dead stop. Auxiliary battery power remained on to provide life support functions and to provide light, but little else.
“What do you think are our options?” said Dirks.
“We should blow our ballast.”
“Well, we certainly aren’t doing any good here.”
The second focused sonic pulse caught Benthic Ranger One full force. The front window started to crack and implosion followed immediately. Dirks and O’Shaunnessy never knew what hit them. As the Benthic Ranger collapsed into itself, crushing its occupants, the buoyancy of the vessel disappeared. Benthic Ranger One slowly fell to the ocean floor.
“Captain, Captain! The thing got Benthic Ranger One, it was terrible!” screamed Takeshita.
“What happened?”
”Benthic Ranger One got off one uranium torpedo, but the damn torpedo just bounced off the thing like it was a Nerf ball. They also got off one blast with the laser cannon. The thing hesitated as it took the hit but then went for the kill. As Benthic Ranger One was trying to get away from the thing, it fired some sort of sound pulse. Our passive sonar went crazy. Benthic Ranger One was crippled after that. Then the thing attacked again, this time firing a sonic boom at Benthic Ranger One within an incredibly short range. Benthic Ranger One imploded.”
“We noted the sonic blast as well.”
“The sonic blast must have been really something to have caused so much damage,” said Takeshita. “I’ve never seen anything like this.”
Inside the command module, Messinger and his two top officers continued to review their options. Whatever the mysterious vehicle was, it was able to fend off a uranium torpedo and had a strange sonic weapon capable of destroying a Benthic Ranger. The speed of the vehicle was amazing.
“Do you think it was Russian?” said Messinger.
Diaz frowned. “I’ve heard that both DARPA and the Scientific and Technical Directorate, KGB’s counterpart, have been developing something called a focused sonic pulse gun. Do you think that was what took Benthic Ranger One out?”
“What’s a focused sonic pulse?” said Wright.
“Sound is transmitted by a rapidly dissipating compression wave rather than by energy on its own right,” said Diaz. “A focused sonic pulse is a grouped energy pulse, not unlike the trick with a pretzel can and rubber diaphragm with a hole in its center that physics professors like to use to demonstrate sonic cannons. Our attempts at narrow beam sonar imaging have been feeble attempts to harness the energy in sound waves.