NASA’nın Artemis I Moon Kritik Roketini Test Etme Son Planları
Artemis I fırlatma ekibi, tıpkı bir SpaceX Falcon 9 roketi gibi, bir sonraki ıslak giysili prova denemesine hazırlanırken, içinde Orion uzay aracı bulunan NASA’nın Uzay Fırlatma Sistemi (SLS) roketi, Fırlatma Kompleksi 39B’de bir mobil fırlatma rampasının üzerinde görülüyor. Crew uzay aracı, 6 Nisan 2022 Çarşamba günü NASA’nın Florida’daki Kennedy Uzay Merkezi’nde Axiom Mission 1 (Ax-1) için hazırlıklar devam ederken, şirketin Dragon’u Launch Complex 39A’daki fırlatma rampasında gördü. Ax-1 görevi, Uluslararası Uzay İstasyonuna yapılan ilk özel astronot görevidir. Ax-1 mürettebat üyeleri İspanya ve ABD’den Komutan Michael Lopez-Alegria, ABD’den pilot Larry Connor, İsrail’den görev uzmanları Eitan Stipe ve Kanada’dan Mark Bathy, 8 Nisan’da Kennedy Uzay Merkezi’ndeki Fırlatma Kompleksi 39A’dan fırlatıldı. Kredi bilgileri: NASA/Joel Kosky
interim cryogenic propulsion stage (ICPS) with the ground systems at Kennedy. Due to the changes in loading procedures required for the modified test, wet dress rehearsal testing is slated to resume with call to stations on Tuesday, April 12 and tanking on Thursday, April 14. Wet dress rehearsal is an opportunity to refine the countdown procedures and validate critical models and software interfaces. The modified test will enable engineers to achieve the test objectives critical to launch success.
Engineers have identified a helium check valve that is not functioning as expected, requiring these changes to ensure safety of the flight hardware. Helium is used for several different operations, including purging the engine, or clearing the lines, prior to loading propellants during tanking, as well as draining propellant. A check valve is a type of valve that allows liquid or gas to flow in a particular direction and prevents backflow. The helium check valve is about three inches long and prevents the helium from flowing back out of the rocket.
Following the modified test, the Space Launch System rocket and Orion spacecraft will return to the Vehicle Assembly Building (VAB) where engineers will evaluate the valve and replace if needed. Teams are confident in the ability to replace the valve once back in the VAB.
NASA will host a teleconference to discuss details on Monday, April 11. Check back at this blog for an update on the countdown timeline prior to the modified wet dress rehearsal testing for the Artemis I mission. NASA is streaming live video of the rocket and spacecraft on the Kennedy Newsroom YouTube channel.
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