ULA Begins Stacking Atlas V for Boeing's Starliner OFT-2 Launch, as Second Booster Arrives for First Crewed Flight

In the coming days of Atlas V stacking work, two AJ60 solid rocket boosters and the Centaur upper stage with dual RL10A-4-2 engines will be hoisted into place. Starliner attachment occurs next month. Launch is planned for July 30 at 2:53pmEDT (1853 UTC). Photo: ULA

United Launch Alliance (ULA) is quite busy at Cape Canaveral Space Force Station in Central Florida, where the company is currently stacking the Atlas V rocket which will launch Boeing’s second un-crewed Orbital Flight Test of their Starliner space capsule under contract with NASA’s Commercial Crew Program to the International Space Station (ISS).

And right on the heels of that, the Atlas V for Starliner’s first crewed mission, the Crew Flight Test (CFT), just arrived today at the spaceport via the company’s transport ship from Decatur, AL.

Atlas V raised for Boeing’s OFT-2 launch at ULA’s Vertical Integration Facility at Cape Canaveral Space Force Station. Photos: ULA
Photo: ULA

Over the last few days, ULA transported the 107-foot-long first stage OFT-2 booster to the Vertical Integration Facility at launch complex 41, and have since raised it vertical and hoisted it atop the rocket’s Mobile Launch Platform. Known collectively as the Launch Vehicle on Stand (LVOS) milestone, ULA will now begin mating two AJ60 solid rocket boosters and the Centaur upper stage with dual RL10A-4-2 engines to the booster, before attaching the spacecraft itself in July for a planned July 30 launch at 2:53pm EDT (1853 UTC).

The mission comes following a questionable first Orbital Flight Test in 2019, where the spacecraft suffered a software timing anomaly shortly after launch which prevented it from ever reaching the ISS. And while they did save the spacecraft and were able to conduct various other test objectives, and brought the spacecraft back to Earth safely, the bottom line is they still have yet to prove it can safely rendezvous with the ISS, which is the whole reason NASA awarded them a multi-billion dollar contract years ago along with SpaceX, who has now been flying crews on their Dragon spacecraft for over a year (and with a smaller dollar amount contract).

Views of December’ 2019’s ULA Atlas V launch carrying the first CST-100 Starliner test mission (OFT-1). Photo Credit: Mike Killian / AmericaSpace.com

Despite an incomplete OFT-1 mission, Starliner successfully demonstrated its propulsion systems, its communications systems, its Guidance, Navigation and Control (GNC), its Environmental Control and Life Support System (ECLSS) and—through a series of in-flight extension/retraction tests—its NASA Docking System (NDS).

And although NASA noted that an actual ISS docking was not a mandatory requirement to “crew-certify” Starliner, and pointed out that had a crew been aboard OFT-1 they could have taken manual control and likely overcome the automated timing problem, it became increasingly likely as 2020 dawned that another uncrewed flight would need to take place.

A High Visibility Close Call (HVCC) Review, led by NASA Associate Administrator for Human Exploration and Operations Kathy Lueders and Commercial Crew Program Manager Steve Stich, revealed a worrisome number of technical and organization root causes for the troubled mission. In March 2020, a joint NASA/Boeing Independent Review Team (IRT) found that three principal anomalies had plagued the flight. Two were classified as “software coding errors”.

The Boeing CST-100 Starliner spacecraft to be flown on Orbital Flight Test-2 (OFT-2) is seen in the Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center in Florida on June 2. Photo credit: Boeing

You can read more in depth details on the issues HERE in our prior reporting, along with the resolutions. Bottom line now is both Boeing and NASA are confident the issues are resolved, and look ahead to the second OFT as soon as July 30, which is set to last approximately a week and will dock and undock autonomously at International Docking Adapter (IDA)-2, on the forward-facing port of the station’s Harmony node.

The spacecraft will also deliver approximately 760 pounds of payload, including 440 pounds of NASA cargo and supplies for the current ISS crew members, a commemorative U.S. flag that will remain aboard the ISS until it returns to Earth on Starliner’s CFT, and provisions like clothes and sleeping bags for CFT astronauts Barry “Butch” Wilmore, Nicole Mann and Mike Fincke.

Boeing’s 320 pounds of cargo includes other special commemorative items for Starliner employees, suppliers and partners who have worked to get the spacecraft flying safely. A card that Boeing’s founder, Bill Boeing, signed and used to travel the United States by air will also fly on OFT-2, along with Silver Snoopy pins, which are presented by astronauts to people that directly contribute to the success of the U.S. human spaceflight program.

Rosie the Riveter commemorative coins will also be onboard, created to celebrate last year’s passage of the Rosie the Riveter Congressional Gold Medal Act, which honors 19 million American women who worked in the aerospace industry as men went off to fight in World War II. 

Both the Starliner crew module and service module are now fueled for flight, and are undergoing final preparations at neighboring Kennedy Space Center. NASA and Boeing have closed all actions recommended by the joint NASA-Boeing Independent Review Team, as well, which was formed as a result of Starliner’s first OFT.

In the meantime, mission control teams in Florida and Texas are conducting simulated mission dress rehearsals for OFT-2 and future crewed flights. Starliner’s landing and recovery teams will also do an on-site checkout of one of the vehicle’s landing zones.

Boeing’s CST-100 Starliner takes flight in December 2019 for the troubled OFT-1 mission. Photo Credit: Alan Walters / AmericaSpace.com

“I am extremely proud of the NASA and Boeing Starliner teams as they methodically work toward the OFT-2 mission next month with final checks of the crew module and service module hardware and software as we prepare for this important uncrewed test mission,” said Steve Stich, NASA Commercial Crew Program manager. “Closing all of the Independent Review Team findings for the software and communications systems is a huge milestone for the Commercial Crew Program and included many long hours of testing and reviews by our dedicated Boeing and NASA teams during this Covid-19 pandemic.”

Assuming that the mission runs without significant wrinkles, the way will be clear for the CFT with Commander Barry “Butch” Wilmore, Pilot Nicole Mann and Joint Operations Commander (JOC) Mike Fincke, before the end of the year.

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1 comment to ULA Begins Stacking Atlas V for Boeing’s Starliner OFT-2 Launch, as Second Booster Arrives for First Crewed Flight

  • […] The uncrewed mission will be delivered to low-Earth orbit atop a United Launch Alliance (ULA) Atlas V booster, with an autonomous docking at the International Space Station (ISS) anticipated early Saturday and a parachute-assisted return to Earth five to ten days thereafter. Successful completion of OFT-2 will clear a major hurdle as Boeing readies for its Crew Flight Test (CFT) to the station, which may take place before year’s end. […]

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