Boeing Orbital Flight Test-2. - Ruimtevaart

RE: Boeing Orbital Flight Test-2.

Roland Lemmers — Mon, 16 May 2022 08:56:29 +0000

Vrijdag 18 mei om middernacht begint de uitzending op NASA-tv van de Orbital Flight Test-2 (OFT-2).

Wordt dus een nachtelijk gebeuren voor de mensen die het live willen bekijken.

https://www.nasa.gov/press-release/coverage-set-for-nasa-s-boeing-oft-2-briefings-events-broadcast

UITGESTELD

Roland Lemmers — Wed, 04 Aug 2021 05:17:16 +0000

De lancering is tot nader order uitgesteld. Er gaat goed onderzocht worden waar het probleem met de kleppen zit.

RE: Boeing Orbital Flight Test-2.

Roland Lemmers — Tue, 03 Aug 2021 16:41:02 +0000

> NASA, Boeing and United Launch Alliance (ULA) have scrubbed the Aug. 3 launch attempt of the agency’s Orbital Flight Test-2 to the International Space Station due to

> unexpected valve position indications in the Starliner propulsion system. ULA will begin removing propellant from the Atlas V rocket.Pending resolution of the forward work,

> our next available launch opportunity would be 12:57 p.m. EDT on Wednesday, Aug. 4

Morgen , 4-8 18.57u is de volgende kans om te lanceren.

RE: Boeing Orbital Flight Test-2.

Roland Lemmers — Sun, 01 Aug 2021 06:29:03 +0000

De lancering staat nu gepland op dinsdag om 19.20u.

De uitzending begint om 18.30u

Bekijk het op het NASA Youtube kanaal.

https://www.youtube.com/watch?v=21X5lGlDOfg

RE: Boeing Orbital Flight Test-2.

Roland Lemmers — Fri, 30 Jul 2021 05:46:40 +0000

Wegens werkzaamheden in verband met de aankomst van de Nauka module is de lancering uitgesteld naar op z'n vroegst dinsdag 19.20u.

Video Nauka koppeling.

https://youtu.be/8mOZ_woI5Hk?t=3258

Boeing Orbital Flight Test-2.

Roland Lemmers — Thu, 29 Jul 2021 06:27:59 +0000

NASA’s Boeing Orbital Flight Test-2 (OFT-2) staat gepland voor lancering op vrijdag 30 juli om 20.53u onze tijd.

Boeing gaat het weer proberen met de CST-100 capsule. Na een test in december 2019 kwamen tijdens vlucht al de nodige problemen aan het licht en verder onderzoek bracht nog meer aan het licht:

With the completion of the investigation’s third and final focus area, the review team identified a total of 80 recommendations that Boeing, in collaboration with NASA, is addressing, with action plans for each already well under way. Although the full list of recommendations is company sensitive and proprietary, the categories of the corrective and preventative actions are as follows:

Testing and Simulation: 21 recommendations including the need for greater hardware and software integration testing; performance of an end-to-end “run for record” test prior to each flight using the maximum amount of flight hardware available; reviewing subsystem behaviors and limitations; and addressing any identified simulation or emulation gaps.
Requirements: 10 recommendations including an assessment of all software requirements with multiple logic conditions to ensure test coverage.
Process and Operational Improvements: 35 recommendations including modifications to change board documentation; bolstering required participants in peer reviews and test data reviews; and increasing the involvement of subject matter experts in safety critical areas.
Software: 7 recommendations including updating the software code and associated artifacts to correct the Mission Elapsed Timer Epoch and Service Module disposal anomalies; and making the antenna selection algorithm more robust.
Knowledge Capture and Hardware Modification: 7 recommendations such as organizational changes to the safety reporting structure; amending the Independent Verification and Validation (IV&V) approach; and the addition of an external Radio Frequency (RF) filter to reject out-of-band interference.