The STS-130 mission was a perfect example of Space Shuttle assembly missions to the International Space Station. Over ten days at the station, the crew berthed the Node 3 module Tranquility to the port side of Node 1, reconfigured the Cupola module to its permanent nadir-facing position on Node 3 from its axial launch position, transferred the PMA-3 module from a temporary position on Node 2 Harmony to a new position at the axial (port) end of Node 3, and conducted three spacewalks to outfit Node 3 and the Cupola into their flight configuration. On Flight Day 10, the Cupola windows had been opened for the first time, granting a new and wider view of the world than had ever been available before through its seven windows, including a 36” main port looking directly down at the Earth below.
However, Endeavour’s 24th spaceflight was also officially to be her second to last--and as currently planned, the last mission of the entire Space Shuttle program. The Earth below might look peaceful, but as mission commander George Zamka and pilot Terry Virts guided Endeavour down over the coast of Washington en route to a landing at KSC, they swept over a country which was in the midst of a furious debate over the future of spaceflight beyond the end of the Shuttle. As many outside the White House had expected, but as had apparently come as a shock to Obama’s staff, the proposal to kill Constellation in the cradle and end development on a Shuttle-derived heavy lifter and the new Orion crew capsule entirely had not only come as an affront to spaceflight fans. It had also met with stark opposition by the powerful interests of the companies involved with those programs. Boeing, whose headquarters Endeavour flashed over at speeds above Mach 20, faced the end of their program for the development of the Ares V core stage, and the sudden absence of a replacement. It represented the loss of tens of billions in development funds and thousands of jobs in Alabama, New Orleans, and Florida. Lobbyists clustered, planning strategies to coordinate messaging over thwarting Obama’s plans to end Constellation--or at least to ensure that the replacement program would include some kind of Shuttle-derived heavy lifter.
The Shuttle itself flashed over these discussions in seconds, continuing on over northern Utah, passing the major operational center for yet another of America’s giants in spaceflight lobbying: ATK. Around ATK headquarters in Eden Park, Minnesota, reactions were somewhat mixed: the Obama plans called for a massive increase in funding for commercial supply of the International Space Station, a role their investment in RpK left them well-positioned to take advantage of, and which promised to end a continuing deadlock with RpK leadership over the contracts to begin integration for the second LAP and second and third OVs. The K-1 might also be positioned for a bid on the billions of dollars the Obama budget called to spend on the development of a commercial crew vehicle. However, a few hundred million here and there from the K-1 program could hardly replace the steady diet of Space Shuttle and Constellation pork for their flagship solid rocket program. And yet...the checks for Ares V and Ares I five-segment booster development (always the most lucrative portion of a program) had largely already been cashed. If a new HLV didn’t include these boosters, it might not be the end of the world as long as their development was completed.
Indeed, if such a new heavy lifter were to call for the use of reusability as demonstrated by RpK, ATK’s contracts and Michoud to manage assembly the K-1 and to conduct much of launch and turnaround operations at RpK’s Woomera launch site meant they were positioned to be the world leaders in integration and operation of reusable vehicles. If such a vehicle went forward, it might be possible for ATK to wrestle the contract for not just the boosters, but the prime contract for the entire vehicle--a prize worth several times the value of simply building five-segment boosters after development. The timing was wrong, however. No suitable engine yet existed for such a monster, and the K-1 was still beginning its early flights. The thought started off small, but began to spread inside the company’s Minnesota headquarters: perhaps there might be more value in Obama’s plans to wait on HLV development than their knee-jerk reaction had indicated, for ATK as a company, and thus certainly for the country as a whole. White-hot rhetoric began to cool as the thoughts circulated, and new calls went out to congressional and senate offices in Utah, Alabama, and Florida.
While lobbyists considered changes in direction below, Endeavour swept through her own graceful banking turns, bleeding off energy with the atmosphere flaring off her wingtips. Control surfaces and thrusters worked in harmony, all reacting to Zamka and Virts’ steady hand on the stick. This was the moments her design was born for. The delicate balance of air and heat had consumed hundreds of thousands of hours of computer time over the decades, and though the ballet might only occur a few more times, Endeavour’s pilot and computers knew all the steps. At hypersonic speeds tens of kilometers above Oklahoma City, the Space Shuttle Endeavour danced, leaving her characteristic sonic booms behind in her flaming wake as she swept on to Florida.
While she continued on to land, however, the team at RpK in Oklahoma City were planning for her replacement. As of that morning, the final closeouts for the K-1 COTS Demo 1 flight were beginning. Jean-Pierre Boisvert’s flight control team were in the simulator, working through the procedures to guide their spacecraft on to berth to the same node, if not the same port, which Endeavour ahd so recently freed up. Other engineers worked through weight and balance checklists with NASA teams in Houston as they planned the loadout for the low-risk cargos of opportunity which would be loaded into the Pressurized Payload Module to be unloaded if the K-1 succeeded in making its berthing to Station. The planned launch date had slipped from March 1st to March 3rd, but that still meant the launch of the next generation of reusable rocket to the space station was less than a week and a half away.
The K-1 was Endeavour’s successor in many ways. The K-1 was technological cousin using many of her systems or a child drawing on shuttle heritage for a fully reusable vehicle of the type Shuttle’s designers had dreamt to build. However,the K-1 lacked Shuttle’s grace in the air. While Endeavour’s sleek form danced with the air, the K-1 simply shoved it aside in frustration. The Shuttle, though long described as like flying a brick by pilots, at least had significant lift. Her massive wings, carried to orbit at the cost of so much payload, let her slip through the air with the relative agility she was once again putting to use to manage her return. The K-1 did not slip, cut, or knife through the air, not by a longshot. On return, the OV’s protective mantle of tiles and blankets wrapped its barrel-like form in the bare minimum required to sustain heat. The Space Shuttle was like flying a brick, but at least it flew. The OV’s return had all the grace of a brick thrown into a pond. The K-1 had even less respect for the air on ascent. Unlike the STS system’s careful ogives and booster noses, the K-1 offered the airstream the same blunt heat shield as on descent, shoving the airstream aside like a linebacker with the power of her AJ-26 main engines. And yet, if the mission proved successful in the coming weeks, the K-1’s two stages could go on to offer the Space Station the vehicle the Shuttle designers had always envisioned. Time would tell if she could weather the storm, not just of entry, but of politics.
While K-1 planners focused on their upcoming missions, Endeavour continued her return to Florida, knifing through the sky over Mississippi and Alabama. Below, at Huntsville, program managers and employees nervously considered what the end of Ares might mean for the center. There was little immediate hope in the 2010 budget, and the center’s employees and their representatives in Congress were beginning to marshall their efforts to fight for a reprieve for Ares. Orion, in the end, they could take or leave, but the heavy lifter and development efforts centered at Huntsville had to continue--there was too much on the line for anything else to happen. In Decatur, employees of ULA cursed that none of their proposals for COTS had been selected, offering no chance for their rockets to benefit from the money thrown to commercial cargo. Perhaps commercial crew, but that was the issue under the most fire from their comrades in industry at Marshall. In Florida itself, however, the issue was less grim. Contractors at United Space Alliance, Kennedy Space Center, and the Cape nervously eyes their continued employment too. However, the reality depended less on the vehicle--launching Shuttle, SDHLV, commercial, or other launchers could amount to much the same as long as the workforce was kept busy. As a songsmith might have put it “If the rockets go up, who cares where they come from?” Launching alone was important, whatever the program which was required to ensure a continuing flight rate, though continued crew programs would be nice for the additional employment requirements--or at least, that was the case being in calls made from phone numbers with 952 area codes. Endeavour was above it all, though, swinging into the landing pattern for the Space Shuttle Landing Facility and finally skidding off the last of her energy into heat in her brakes. Like the Space Shuttle program, Endeavour was rolling to a halt.