Boeing said it was inspecting the propulsion system valves on its CST100 Starliner spacecraft after the launch planned for Tuesday was delayed. The
CST100 Starliner will launch from Florida at some point to demonstrate how it transports the crew to and from the International Space Station (ISS).

This will be the second test flight and will be conducted without anyone.
The last demo in 2019 found a software problem, which almost caused the capsule to be lost. The
Starliner will enter orbit on an Atlas5 rocket from Cape Canaveral Space Force Station in Florida. The
controller aimed to launch on Tuesday, but cancelled the two-and-a-half hour countdown to investigate technical issues related to the capsule propulsion system.

Now Boeing said it will not reschedule the launch on Wednesday because it needs more time to discover the cause of “unexpected valve position indications in the propulsion system.
Boeing Starliner Spacecraft-Guide
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Space capsules
Image source ASA
Image title Luckily , Starliner still successfully landed
441 Just over 10 years ago, Boeing first announced the design of the CST100 Starliner at the Farnborough Air Show in the United Kingdom.

This is a response to a call from commercial companies to be responsible for transporting crew members in low-Earth orbit after the space shuttle that is about to be decommissioned.
NASA provides technical and financial support to Boeing and SpaceX to help them develop new space capsules. The idea is that as long as NASA needs to send astronauts to the International Space Station, these vehicles will be used for commercial purposes. However, although SpaceX is now two manned flights in this era of privatization, Boeing has yet to conduct a manned mission at Starliner. That’s because Boeing had serious problems with its first unmanned “orbital flight test” in December 2019.

The problem started with a capsule clock error after launch, causing the aircraft to think that he was in a different phase of flight than the real situation.
Boeing Starliner infographic
This caused the on-board computer system to overuse Starliner’s thrusters and consume so much fuel that it could not reach its intended destination to dock with the space station. Ground controllers can see that the problem is occurring, but it is difficult to communicate with the spacecraft.

After the truncated mission, it was also discovered that poorly designed software could cause the space capsule to collide with the service part behind it, when the two were ordered to separate before re-entering Earth’s atmosphere. Fortunately, this problem was discovered and prevented, and the capsule landed safely in the New Mexico desert. The post-mission
review initiated a series of redesigns and updates that allowed Boeing to attempt Orbital Flight Test 2 (OFT2).
Rosie the Rocketeer
IMAGE SOURCEBOEING
caption The only “person” on board will be “Rosie the Rocketeer
Chris Ferguson, former NASA astronaut and Boeing’s director of mission operations for Starliner, said the company already You are running the new software in the full-duration flight simulation capsule.
He added that the new code has implemented all the fixes recommended by the patch.

“We solved all the problems and we boarded the plane. We hope the next flight is as clean as possible,” he told reporters.
“We have drilled, tested, and verified the software code hundreds of times to ensure that it works exactly as we expected in OFT2.
Dragon Capsule
Image source ENASA
shows that the SpaceX Dragon capsule has been crewed The
replay to the International Space Station will follow the same profile: an unmanned mission to the International Space Station. In other words, an anthropomorphic test device, often referred to as a flying dummy, nicknamed “Rossie the Rocket”, will wear seat belts again.

Rosie and “her” capsule will stay on the space station for five days, then drop off the parachute to aid descent and land at the White Sands Missile Range in New Mexico.
If Boeing can get past OFT1’s flaws, NASA can allow Starliner to begin operating before the end of the year.
This will eventually provide the agency with two new transportation systems for the crew, which it was looking for when the space shuttle was removed from the museum 10 years ago.

“This is an important part of this launch capability from the United States, and there is redundancy between SpaceX and Boeing, so we don’t just depend on one company to send astronauts to the International Space Station,” said Nicoleman, Office of the POT. Astronauts were selected to conduct the first manned interplanetary mission.
This capacity will also open space for broader participation. She believes: “You will see more people who are not NASA astronauts in low Earth orbit. That’s great. I think that for the younger generation, they will see scientists, engineers, and perhaps journalists in space. They will be able to capture the miracles of space and share their experiences. “

By Peter

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