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{{short description|Abort test of the Boeing Starliner spacecraft}}
{{redirect-distinguish|Rosie the Rocketeer|Rosie the Rocketer}}{{use dmy dates|date=February 2020}}
{{Use dmy dates|date=May 2024}}
{{Infobox spaceflight
{{Infobox spaceflight
| name = Boe-PAT
| name = Boeing Pad Abort Test
| image = CST-100 Starliner - Pad Abort Test,49013402052 f3852e9b3d o.jpg
| names_list = Boe-PAT
| image = CST-100 Starliner - Pad Abort Test,49013402052 f3852e9b3d o.jpg
| image_caption = Starliner fires its Abort Motors
| image_caption = Starliner Spacecraft 1 fires its [[RS-88]] abort motors
| mission_type = Technology Demonstration
| mission_type = [[Technology demonstration]]
| operator = {{Hlist|[[NASA]]|[[Boeing]]}}
| operator = [[Boeing Defense, Space & Security]]
| COSPAR_ID =
| SATCAT =
| mission_duration = {{time interval|2019-11-4 14:15:00|2019-11-4 14:16:19|show=dhms|sep=,}}
| mission_duration = {{time interval|2019-11-4 14:15:00|2019-11-4 14:16:19|show=dhms|sep=,}}
| spacecraft = {{ComV|CST-100 Starliner|1}}
| distance_travelled =
| spacecraft_type = Boeing Starliner
| orbits_completed =
⚫
| manufacturer = Boeing Defense, Space & Security
| spacecraft = [[Boeing CST-100 Starliner#List of spacecraft|Boeing Starliner S1]]
⚫
| launch_date = 4 November 2019, 14:15:00 [[UTC]]<ref>{{cite web |last=Clark |first=Stephen |url=https://spaceflightnow.com/2019/12/03/launch-of-starliner-test-flight-slips-to-dec-19/ |title=Launch of first Starliner orbital test flight slips to Dec. 19 |work=Spaceflight Now |date=3 December 2019 |accessdate=3 December 2019}}</ref>
⚫
| manufacturer = [[Boeing]]
⚫
| launch_site = [[White Sands Missile Range]]
| launch_mass = {{convert|NNNN|abbr=on}}
⚫
| landing_date = 4 November 2019, 14:16:19 UTC
| landing_mass = {{convert|NNNN|abbr=on}}
⚫
| landing_site = [[White Sands Missile Range]]
⚫
| launch_date = 4 November 2019 14:15:00 UTC<ref name="sfn-20191203">{{cite web |last=Clark |first=Stephen |url=https://spaceflightnow.com/2019/12/03/launch-of-starliner-test-flight-slips-to-dec-19/ |title=Launch of first Starliner orbital test flight slips to Dec. 19 |work=Spaceflight Now |date=3 December 2019 |accessdate=3 December 2019}}</ref><ref name=SPFN>[https://spaceflightnow.com/2019/12/18/atlas-5-av-080-starliner-oft-mission-status-center/ Live coverage: Overnight countdown underway for Friday’s Starliner launch]</ref>
⚫
| apsis = gee
⚫
| launch_site = [[White Sands Missile Range]]
| insignia = Boeing Pad Abort Test.png
⚫
| landing_date = 4 November 2019 14:16:19 UTC
⚫
| programme = '''[[Commercial Crew Development]]'''
⚫
| landing_site = [[White Sands Missile Range]]
⚫
| apsis = gee
| orbit_epoch =
| orbit_periapsis =
| orbit_apoapsis =
| orbit_period =
| orbit_inclination =
| insignia =
| insignia_alt =
⚫
| programme = '''[[Commercial Crew Program]]'''
| previous_mission = [[Crew Dragon Demo-1|SpaceX Demo-1]]
| previous_mission = [[Crew Dragon Demo-1|SpaceX Demo-1]]
| next_mission = [[Boeing Orbital Flight Test]]
| next_mission = [[Boeing Orbital Flight Test]]
| programme2 = '''[[Boeing CST-100 Starliner#List of flights|Boeing Starliner flights]]'''
| programme2 = '''[[Boeing Starliner#List of flights|Boeing Starliner flights]]'''
⚫
| next_mission2 = [[Boeing Orbital Flight Test]]
| previous_mission2 =
⚫
| next_mission2 = [[Boeing Orbital Flight Test]]
}}
}}


The '''Boeing Pad Abort Test''' (also abbreviated to '''Boe-PAT''') was a test of the [[Boeing CST-100 Starliner]] and its abort motors, conducted by Boeing as part of NASA's Commercial Crew Program. It was the first flight of Starliner and one of the last milestones ahead of OFT. The mission's main objective was to demonstrate that Starliner could safely pull a crew away from the pad in the event of an emergency prior to liftoff.<ref name=":0" />
The '''Boeing Pad Abort Test''' (also abbreviated to '''Boe-PAT''') was a test of the [[Boeing CST-100 Starliner]] and its abort motors, conducted by Boeing as part of NASA's Commercial Crew Program. It was the first flight of Starliner and one of the last milestones ahead of [[Boeing Orbital Flight Test|OFT]]. The mission's main objective was to demonstrate that Starliner could safely pull a crew away from the pad in the event of an emergency prior to liftoff.


After a successful launch, only two of three main parachutes deployed.<ref name=":1" /> Despite this, NASA and Boeing deemed the test a success, as Starliner was designed to function on two parachutes if necessary.
After a successful launch, only two of three main parachutes deployed. Despite this, NASA and Boeing deemed the test a success, as Starliner was designed to function on two parachutes if necessary.


== History ==
== History ==
In September 2011, Boeing announced the completion of a set of ground drop tests to validate the design of the airbag cushioning system. In May 2019, all major hotfire tests, were completed using full-up flight-capable service module hardware. This cleared the way for the pad abort test and the subsequent uncrewed and crewed flights.<ref name=":0">{{Cite web |url=https://spaceflightnow.com/2019/05/25/boeings-starliner-crew-capsule-completes-major-propulsion-test/ |title = Boeing's Starliner crew capsule completes major propulsion test – Spaceflight Now}}</ref>
In September 2011, Boeing announced the completion of a set of ground drop tests to validate the design of the airbag cushioning system. In May 2019, all major hotfire tests, were completed using full-up flight-capable service module hardware. This cleared the way for the pad abort test and the subsequent uncrewed and crewed flights.<ref>{{Cite web |url=https://spaceflightnow.com/2019/05/25/boeings-starliner-crew-capsule-completes-major-propulsion-test/ |title = Boeing's Starliner crew capsule completes major propulsion test – Spaceflight Now}}</ref>


The pad abort test took place on 4 November 2019.<ref name=":1">{{Cite web |url=https://spaceflightnow.com/2019/11/04/boeing-starliner-pad-abort/ |title = Boeing tests crew capsule escape system – Spaceflight Now|work=spaceflightnow.com|language=en-US|access-date=4 November 2019}}</ref> The abort motors fired nominally, followed by a clean service module separation. One of the three parachutes failed to deploy, and the capsule landed with only two parachutes.<ref>{{cite news|url=https://arstechnica.com/science/2019/11/starliner-flies-for-the-first-time-but-one-of-its-parachutes-failed-to-deploy/|title=Starliner flies for the first time, but one of its parachutes failed to deploy|date=4 November 2019}}</ref> The airbag cushion helped break the harder-than-expected fall, and the landing was deemed to be safe. NASA declared the test a success, and the malfunction of one parachute didn't affect the Starliner development schedule.<ref name="Capsule Abort system test">https://spaceflightnow.com/2019/11/04/boeing-starliner-pad-abort/</ref> The malfunction was found to be human error. A pin meant to connect the pilot chute to the main chute was not properly connected. Therefore the pilot chute was not able to successfully deploy the main chute. Pre-flight inspections did not catch this error due to a protective covering.<ref>{{Cite web|last=Clark|first=Stephen|title=Boeing identifies cause of chute malfunction, preps for Starliner launch – Spaceflight Now|url=https://spaceflightnow.com/2019/11/07/boeing-identifies-cause-of-chute-malfunction-continues-preps-for-first-starliner-launch/|access-date=2020-06-24|language=en-US}}</ref>
The pad abort test took place on 4 November 2019.<ref>{{Cite web |url=https://spaceflightnow.com/2019/11/04/boeing-starliner-pad-abort/ |title = Boeing tests crew capsule escape system – Spaceflight Now|work=spaceflightnow.com|language=en-US|access-date=4 November 2019}}</ref> The abort motors fired nominally, followed by a clean service module separation. One of the three parachutes failed to deploy, and the capsule landed with only two parachutes.<ref>{{cite news|url=https://arstechnica.com/science/2019/11/starliner-flies-for-the-first-time-but-one-of-its-parachutes-failed-to-deploy/|title=Starliner flies for the first time, but one of its parachutes failed to deploy|date=4 November 2019}}</ref> The airbag cushion helped break the harder-than-expected fall, and the landing was deemed to be safe. NASA declared the test a success, and the malfunction of one parachute didn't affect the Starliner development schedule.<ref>{{Cite web|url=https://spaceflightnow.com/2019/11/04/boeing-starliner-pad-abort/|title=Boeing tests crew capsule escape system – Spaceflight Now|first=Stephen|last=Clark}}</ref> The malfunction was found to be human error. A pin meant to connect the pilot chute to the main chute was not properly connected. Therefore the pilot chute was not able to successfully deploy the main chute. Pre-flight inspections did not catch this error due to a protective covering.<ref>{{Cite web|last=Clark|first=Stephen|title=Boeing identifies cause of chute malfunction, preps for Starliner launch – Spaceflight Now|url=https://spaceflightnow.com/2019/11/07/boeing-identifies-cause-of-chute-malfunction-continues-preps-for-first-starliner-launch/|access-date=24 June 2020|language=en-US}}</ref>


==References==
== See also ==
* [[Dragon 2 Pad Abort Test]]

== References ==
{{reflist}}
{{reflist}}


== External Links ==
== External links ==
*{{YouTube|L9ifJzokFgA|Boeing Pad Abort Test}}
*{{YouTube|L9ifJzokFgA|Boeing Pad Abort Test}}
{{Starliner spaceflights}}
{{Starliner spaceflights}}


[[Category:Boeing CST-100 Starliner]]
[[Category:Boeing Starliner]]
[[Category:Test spaceflights]]
[[Category:Test spaceflights]]
[[Category:2019 in spaceflight]]
[[Category:2019 in spaceflight]]
[[Category:November 2019 events in the United States]]
[[Category:November 2019 events in the United States]]
[[Category:Flight abort]]

Latest revision as of 20:41, 8 June 2024

Boeing Pad Abort Test
Starliner Spacecraft 1 fires its RS-88 abort motors
NamesBoe-PAT
Mission typeTechnology demonstration
OperatorBoeing Defense, Space & Security
Mission duration1 minute, 19 seconds
Spacecraft properties
SpacecraftBoeing Starliner Spacecraft 1
Spacecraft typeBoeing Starliner
ManufacturerBoeing Defense, Space & Security
Start of mission
Launch date4 November 2019, 14:15:00 UTC[1]
Launch siteWhite Sands Missile Range
End of mission
Landing date4 November 2019, 14:16:19 UTC
Landing siteWhite Sands Missile Range

The Boeing Pad Abort Test (also abbreviated to Boe-PAT) was a test of the Boeing CST-100 Starliner and its abort motors, conducted by Boeing as part of NASA's Commercial Crew Program. It was the first flight of Starliner and one of the last milestones ahead of OFT. The mission's main objective was to demonstrate that Starliner could safely pull a crew away from the pad in the event of an emergency prior to liftoff.

After a successful launch, only two of three main parachutes deployed. Despite this, NASA and Boeing deemed the test a success, as Starliner was designed to function on two parachutes if necessary.

History

[edit]

In September 2011, Boeing announced the completion of a set of ground drop tests to validate the design of the airbag cushioning system. In May 2019, all major hotfire tests, were completed using full-up flight-capable service module hardware. This cleared the way for the pad abort test and the subsequent uncrewed and crewed flights.[2]

The pad abort test took place on 4 November 2019.[3] The abort motors fired nominally, followed by a clean service module separation. One of the three parachutes failed to deploy, and the capsule landed with only two parachutes.[4] The airbag cushion helped break the harder-than-expected fall, and the landing was deemed to be safe. NASA declared the test a success, and the malfunction of one parachute didn't affect the Starliner development schedule.[5] The malfunction was found to be human error. A pin meant to connect the pilot chute to the main chute was not properly connected. Therefore the pilot chute was not able to successfully deploy the main chute. Pre-flight inspections did not catch this error due to a protective covering.[6]

See also

[edit]

References

[edit]
  1. ^ Clark, Stephen (3 December 2019). "Launch of first Starliner orbital test flight slips to Dec. 19". Spaceflight Now. Retrieved 3 December 2019.
  2. ^ "Boeing's Starliner crew capsule completes major propulsion test – Spaceflight Now".
  3. ^ "Boeing tests crew capsule escape system – Spaceflight Now". spaceflightnow.com. Retrieved 4 November 2019.
  4. ^ "Starliner flies for the first time, but one of its parachutes failed to deploy". 4 November 2019.
  5. ^ Clark, Stephen. "Boeing tests crew capsule escape system – Spaceflight Now".
  6. ^ Clark, Stephen. "Boeing identifies cause of chute malfunction, preps for Starliner launch – Spaceflight Now". Retrieved 24 June 2020.
[edit]
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