"The normally prevailing high-altitude easterly winds have, in fact, reversed and we are instead facing a strong headwind at the moment. This has thrown off our planned mission flight profile by a considerable margin." Shuffling through a file of papers, he pulled out a sheaf of algorithmic paper containing numerous calculations and trajectory profiles handwritten in pencil.
"Our base mission plan has been to fuel the Zenit rocket first stage at fifty percent of capacity, which will produce an estimated down-range flight trajectory of 350 kilometers. Approximately fifty kilometers of this distance is over the target region, where the payload system will be activated. Thus, our planned launch position was three hundred kilometers west of Los Angeles, assuming normal local weather patterns. Given the present weather scenario, we have two options: either wait for the low-pressure front to yield to the prevailing winds or reposition the launch platform closer to the target."
"There's a third option," the other Ukrainian grumbled irritably. "We can increase the fuel load in the Zenit to reach the target from the original launch position." As he spoke, his counterpart stood shaking his head silently.
"What is the risk of that?" Tongju asked the doubter.
"Sergei is correct in that we can adjust the fuel load to reach the target from the original launch position. However, I have grave doubts about the accuracy that we would achieve. We do not know the wind conditions for the entire flight trajectory. Given the current unusual weather pattern, the wind conditions along the entire flight path might vary significantly from what we can measure directly above us. The launch vehicle could easily be diverted north or south of the intended target by a large deviation. We could also overshoot the target by tens of kilometers or, alternatively, undershoot the target by a similar degree. There is just too much potential variability in the flight path from this distance."
"A minor risk, compounded by speculation," countered Sergei.
"How long before normal weather patterns return to the area?" asked Tongju.
"The low-pressure front has already showed signs of weakening. We expect it to collapse over the next day and a half, with the dominant high-pressure system prevailing in approximately seventy-two hours."
Tongju silently contemplated the arguments for a moment, then made his decision without debate.
"We have a timetable to meet. We can ill afford to sit and wait for the weather to change, nor can we risk diluting the target strike. We
shall move the platform closer to the target and initiate countdown as soon as possible. How far must we move to mitigate the atmospheric uncertainty?"
"To minimize the impact of the adverse winds, we must shorten the trajectory. Based on our latest wind measurements, we must position ourselves here," the goateed Ukrainian said, pointing to a map of the North American seaboard. "One hundred and five kilometers from the coast."
Tongju studied the position silently for a minute, calculating the added distance to cover. The proposed position was dangerously near the coastline, he observed, noting a pair of offshore islands in close proximity. But they could reach the spot and still launch within Kang's desired time schedule. As all eyes in the room waited for his command, he finally turned and nodded toward Lee. "Alter course at once. We will position both vessels at the new position before dawn and initiate launch countdown at daybreak."
You've got to be kidding me. A blimp?" Giordino scratched his chin, then shook his head at Pitt. "You dragged me all the way across country to go for a ride in a blimp?"
"I believe the preferred term is airship" Pitt said, throwing his partner a mock look of indignation.
"A gasbag, by any other name."
Giordino had wondered what Pitt had up his sleeve after the two arrived at LAX on an overnight flight from Washington. Rather than heading south from the airport, toward the Port of Los Angeles and adjacent Coast Guard Marine Safety regional command, Pitt had turned their rental car north. Giordino promptly fell asleep in the passenger seat as the head of NUMA drove them out of the Los Angeles metro area. Awakening later to find the specter of strawberry fields rushing past the window, he rubbed his eyes as the car entered the tiny Oxnard Airport and Pitt parked the vehicle near a large blimp moored to a truck-mounted vertical boom.
Peering at the blimp, Giordino cracked, "I didn't think the Super Bowl was scheduled for another couple of months."
The 222-foot long Airship Management Services Sentinel 1000 was, in fact, much larger
than the usual advertising blimps seen hovering over football games and golf tournaments. An enlarged version of the company's popular Skyship 600 series of blimps, the Sentinel 1000 was designed to lift a useful load of nearly six thousand pounds by way of an envelope that held ten thousand cubic meters of gas. Unlike the rigidly framed dirigibles of the twenties and thirties that relied on highly flammable hydrogen for lift, the Sentinel 1000 was a true non-rigid blimp that utilized the safer element of helium to rise off the ground.
"Looks like a runt nephew of the Hindenburg" Giordino moaned, eyeing the silver-skinned airship warily.
"You happen to be looking at the latest in surveillance and tracking technology," Pitt said. "She's fitted with a LASH optical system. NUMA is testing her out for possible survey use on coral reef and tide studies. The system has already been used successfully to track migrating whales."
"What is a "LASH system?"
"Stands for "Littoral Airborne Sensor-Hyperspectral." It's an optical imaging system that uses a breakdown in the color band to detect and track targets that the eye cannot see. Homeland Security is considering using it for border security and the Navy for antisubmarine warfare."
"If we can give it a test run over Malibu Beach, then I'm all for it." A ground crewman wearing a NUMA identification badge climbed out of the gondola as Pitt and Giordino approached the airship.
"Mr. Pitt? We've installed the radio set that the Coast Guard sent up, so you'll be able to conduct secure communications with their vessels. The Icarus has been weighed off for a landing equilibrium of plus-one hundred kilograms when your fuel supply runs down to five percent, so just don't run the tanks dry. The airship is also fitted with both a water ballast system and an experimental fuel dump release, should you need emergency lift."
"How long can we stay aloft?" Giordino asked, eyeing a pair of ducted propellers jutting from either side of the gondola's aft section.
"Eight to ten hours, if you go easy on the throttles. Enjoy your flight, she's a joy to fly," he said, bowing slightly.
Pitt and Giordino climbed through the gondola door and into a spacious cabin that was comfortably outfitted to seat eight passengers. Squirming through a forward opening into the flight compartment, Pitt took up the pilot's controls while Giordino plopped into the copilot's seat. With a muffled roar, Pitt started the pair of turbocharged Porsche 930 air-cooled engines mounted on the rear flanks of the gondola, which served as propulsion. With the engines idling, Pitt obtained clearance to take off from the airport control tower, then turned to Giordino.
"Ready for takeoff, Wilbur?"