Starliner

Starliner
Name	Starliner
Caption	CST-100 Starliner capsule
Manufacturer	Boeing
Country	United States
Operator	Boeing, United Launch Alliance, NASA
First flight	2019
Status	Active development and flight testing

Starliner Starliner is a United States-designed reusable crewed spacecraft developed by Boeing in partnership with NASA and United Launch Alliance for low Earth orbit transport, primarily servicing the International Space Station, the Commercial Crew Program, and national human spaceflight objectives involving agencies such as Roscosmos and ESA. It is a capsule-type vehicle intended to launch on an Atlas V or Vulcan rocket and to ferry astronauts between Earth and orbital platforms, interacting with programs and facilities including Johnson Space Center, Kennedy Space Center, and White Sands. The program intersects with corporate, governmental, and international entities such as SpaceX, Lockheed Martin, Blue Origin, Draper Laboratory, and the Aerospace Safety Advisory Panel.

Overview

Starliner was conceived under NASA's Commercial Crew Program alongside competitors like SpaceX Dragon 2 and supported by contractors and institutions including Boeing Defense, Space & Security, United Launch Alliance, Axiom Space, Sierra Nevada Corporation, and Northrop Grumman. The vehicle is designed to dock with the International Space Station using autonomous systems and to accommodate crew from agencies including NASA, European Space Agency, Canadian Space Agency, Japan Aerospace Exploration Agency, and international partners such as Roscosmos and Brazilian Space Agency. Its development relates to historic programs by entities like McDonnell Douglas, Martin Marietta, Rockwell International, and legacy hardware from Apollo and Space Shuttle efforts housed at facilities like Kennedy Space Center and Houston Johnson Space Center.

Development and design

Design work began with Boeing teams influenced by concepts from Mitsubishi Heavy Industries, Bombardier, and heritage suppliers such as GE Aviation and Honeywell. The capsule, developed at sites including St. Louis and Huntsville, Alabama, leverages systems from suppliers like United Technologies Corporation, Raytheon, BAE Systems, and Rolls-Royce subcontractors. Structural, avionics, and life-support design interacted with standards and oversight from organizations including NASA Johnson Space Center, ESA, FAA Office of Commercial Space Transportation, and the National Transportation Safety Board in testing protocols. The program incorporated guidance from panels like the National Research Council and certification frameworks used by Federal Aviation Administration and international partners such as Roscosmos agreements.

Launches and missions

Planned and executed missions used launch vehicles and complexes associated with United Launch Alliance Atlas V rockets from Cape Canaveral Space Force Station and future launches envisioned on Vulcan Centaur at SLC-41. Test missions coordinated with flight control centers at Johnson Space Center and mission control centers such as Russia Mission Control Center for rendezvous procedures. Crew assignments and manifesting have involved astronaut corps from NASA Astronaut Group 21, European Astronaut Corps, JAXA Astronaut Corps, and private crews organized by companies like Axiom Space. High-profile missions referenced agencies and events such as Commercial Crew Program, NASA Spaceflight Participant Program, and joint operations with International Docking Adapter installations.

Technical specifications

Starliner is a pressurized capsule roughly comparable in concept to designs from Soviet Soyuz and Apollo but engineered with modern avionics from Honeywell, propulsion modules from Aerojet Rocketdyne, and heatshield technology informed by research at Ames Research Center and Langley Research Center. The vehicle includes life-support and environmental control systems developed with partners like Collins Aerospace and Hamilton Sundstrand, flight computer architectures influenced by systems used on F-18 and F-22 avionics, and redundancy strategies patterned after requirements from NASA Flight Crew Operations Directorate. Docking and rendezvous systems comply with International Docking System Standard interfaces adopted by SpaceX and Roscosmos partners. Ground support and recovery operations use vessels and facilities akin to USNS Mercy and recovery teams trained at Naval Station Norfolk.

Safety and certification

Certification workflows engaged agencies and committees such as NASA Safety Center, the Aerospace Safety Advisory Panel, FAA Office of Commercial Space Transportation, and international auditors from ESA and JAXA. Independent reviews referenced standards and findings from historical investigations including lessons from Columbia disaster, Challenger disaster, and post-flight inquiry practices similar to those used by National Transportation Safety Board. Safety-critical subsystems underwent formal verification with partners like SAIC, Leidos, and Boeing Phantom Works, and used formal methods promoted by institutions such as MIT and Carnegie Mellon University for software assurance.

Operational history and issues

Operational flights and test campaigns encountered schedule changes influenced by incidents involving contractors and international cooperation challenges similar to delays seen on programs like James Webb Space Telescope and Boeing 737 MAX certification. Mission processing invoked logistics and supply chain interactions with corporations such as Northrop Grumman, General Dynamics, L3Harris Technologies, and standards from ISO and ASME. Troubleshooting of propulsion, software, and parachute systems involved specialists from Draper Laboratory, NASA Engineering and Safety Center, and independent auditors from GAO. Public scrutiny and congressional oversight paralleled reviews conducted for Space Shuttle retirement and Constellation program analyses.

Future plans and variants

Future variants and commercial adaptations have been proposed for missions for NASA Artemis logistics, private spaceflight enterprises like Virgin Galactic collaborations, and commercial space station servicing with operators such as Axiom Space and Orbital Reef. International partnerships under discussion include potential roles in agreements with Roscosmos, ESA, CSA, and JAXA, and integration with future launch systems like Blue Origin New Glenn and United Launch Alliance Vulcan. Long-term development roadmaps reference cooperative architectures explored in white papers by National Academies, proposals from think tanks like RAND Corporation, and procurement frameworks used in past programs including Commercial Orbital Transportation Services.

Category:Crewed spacecraft