보잉 "우리는 스타라이너가 지구로 귀환할 수 있다는 확신을 가지고....다음 테스트 진행 중입니다.."

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포이에마 39.♡.51.104

2024.08.03 11:26

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https://x.com/BoeingSpace/status/1819533290543399300

7 ground tests of a Reaction Control System (RCS) thruster pulled from the Starliner-1 Service Module:
- 1 launch-to-docking test with more than 1,000 pulses to simulate actual CFT conditions
- 5 undock-to-deorbit tests with 500 pulses to simulate potential CFT return conditions
- 1 bonus ground test to more closely simulate the higher thermal conditions CFT thrusters experienced during launch-to-docking
- After the ground tests, that thruster was inspected, disassembled and scanned
1 free-flight hot fire of 5 aft-facing thrusters prior to docking, returning 6-degree of freedom (DOF) axis control
2 docked hot fire tests — the first on 7 of 8 aft-facing thrusters, the second on 27 of 28 total thrusters
Roughly 100,000 computer model simulations representing potential variables and conditions Starliner could experience during undocking, the deorbit burn and landing
Review of Orbital Maneuvering and Attitude Control (OMAC) engine performance to support the CFT deorbit burn
Use of new tools to profile instances of RCS thruster degradation, showing Starliner’s ability to fly a nominal deorbit burn profile
9 hardware and software integrated tabletops, 18 runs, and 230 hours of testing in the Avionics and Software Integration Lab (ASIL)
1 integrated undocking simulation with crew, CST-100 flight controllers, ISS Flight Controllers and engineers
3 backup control entry training runs by Commander Butch Wilmore using Boeing’s onboard crew training simulator
Detailed inspections of thrusters on a previously built Service Module
Starliner-1 and Starliner-2 inspections of the propulsion system doghouses, where RCS thrusters are located
Review of OFT and OFT-2 flight data for a comparative analysis of extreme RCS thruster usage and temperatures
Measurements of helium leak rate data
Supplier-level testing, analysis and inspections
Material testing