“Let’s get some good images of that area when Six flies by,” Kai said. The little voice in his head was still bugging him, but preparing to launch the Black Stallion spaceplane, get his fleet of satellites as fully operational as possible, and be prepared to participate in whatever response the United States was going to make to the unexpected Chinese move in Somalia occupied his mind for the time being.
When Boomer arrived at the spaceplane servicing module, Air Force spacecraft technician First Lieutenant Jeffrey McCallum was already there. He was donning a Compact Moonsuit-style space suit, specially designed for working during space walks with added micrometeorite and radiation protection but compact enough to allow him to squeeze into the Black Stallion’s rather tight cockpit. He was already on an oxygen mask, prebreathing pure oxygen to begin flushing nitrogen out of his system in preparation for working in space-although the entire space station was set on a lower atmospheric pressure to help purge nitrogen from the system, for safety’s sake all astronauts preparing to do an EVA were required to prebreathe oxygen before suiting up.
“How you doing there, McCallum?” Boomer asked. McCallum gave him a thumbs-up and a muffled “Good, Boomer” as he continued to suit up.
Since Boomer wasn’t planning to do a space walk, his suit was of totally different design. While prebreathing oxygen, he donned a suit of thick elastic material, resembling a full-body leotard, with wires leading to a small control device. The material covered his entire body except for his head. When he nodded to the tech that he was ready, the tech flipped a switch. Fine computer-controlled elastomeric filaments in the suit contracted, compressing the material. Boomer let out a little grunt as the material pulled skintight.
Boomer’s suit, called an Electronic Elastomeric Activity Suit, or EEAS (which most wearers say resembles the sound they make when the filaments tighten up), was a simple but very effective alternative to a heavy, bulky pressurized space suit. Humans can actually survive in the vacuum of space, because the skin and vascular system is already pressure-tight-as long as the human has oxygen at the right pressure, no space suit is really needed. But in a vacuum, human tissue expands because the absence of air pressure causes gases in the tissues to painfully expand, like a balloon in an airliner. So a way was needed to keep pressure on the body to prevent the tissues from expanding.
Most space suits, like McCallum’s, used a compressor to pressurize the breathing oxygen inside the suit to keep pressure on the entire body. A skintight rubber suit would work, but it was almost impossible to don such a suit in zero-g, and any folds in the suit would cause muscle deformation. So the EEAS was developed to allow the suit to be easily donned and then re-formed so it became skintight. The electronic control system would keep pressure on the entire body even when moving but allow the limbs to move as necessary. For spaceplane pilots, the EEAS was a great alternative to bulky pressurized suits because it was easier to move around in, easier to manipulate controls, and didn’t require a tech to help strap the pilot into the cockpit.
With the EEAS on and tight, Boomer put on a special flight suit that had a locking collar for his helmet, and continued prebreathing pure oxygen. The space-suit technician then helped him into the standard flight vest, which contained pouches for survival equipment such as portable lights, carbon-dioxide scrubbers, location beacons, backup batteries, a knife, and a suit-repair kit, along with a control panel on his left wrist that showed oxygen saturation, carbon-dioxide levels, suit power, backup battery level, and EEAS control status. “How do you hear, Jeff?” he spoke into the intercom.
“Loud and clear, Boomer,” came the reply. “Good flying with you again.”
“Same here.” Boomer was amazed at how young these new guys were-McCallum looked as if he was twelve going on nine years old. “They brief you on what’s happening?”
“I was prepared to go out to Eight later on this week to fix the continuity problem. I don’t know why it’s been pushed up.”
“We might need it soonest.” He took a moment to explain the Chinese convoy headed for Somalia. “They explain the toolbox issue?”
“If I can’t do it with a soft-pack, it’s got more serious problems than I suspect,” McCallum said. A “soft-pack” was a standard EVA toolbag, with an assortment of zero-g wrenches, screwdrivers, testers, and other commonly used tools suited for working in space, plus room for replacement circuit boards, fuses, circuit breakers, software keys, and other system-specific necessities. “But I’ve got a bunch of circuit boards and components to fix fifty percent of the problems. Anything else will require a cargo run.”
“Very good,” Boomer said. “I’ll plan on staying with the Stud, but if you need me I can hop on over. Just say the word.”