Author Topic: The Shuttle Centaur  (Read 91062 times)

Offline Jim

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Re: The Shuttle Centaur
« Reply #120 on: 06/09/2018 02:23 PM »
Does anyone know if the payload bay liner flight kit was manifested for the Shuttle/Centaur missions? The reason I'm asking is that it was always flown on the IUS missions, so the question really is if the liner was flown for the IUS or the actual spacecrafts that the IUS carried.

Liner was independent of payload.

Offline Jim

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Re: The Shuttle Centaur
« Reply #121 on: 06/09/2018 02:24 PM »
A theoretical question: What is the maximum payload the Shuttle with Centaur (both versions) could have pushed to a standard GTO (*)


Double GSO numbers for a ROM

Offline Jim

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Re: The Shuttle Centaur
« Reply #122 on: 06/09/2018 02:25 PM »
The only figures I have are for GEO - which are probably not news to you - but anyway:

Centaur G Prime: 6350 kg
Centaur G USAF: 4500 kg

Centaur G USAF: 10,000 lbs (that was the design spec)
Centaur G Prime: 14,500 lbs

Offline DaveS

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Re: The Shuttle Centaur
« Reply #123 on: 06/09/2018 02:33 PM »
Does anyone know if the payload bay liner flight kit was manifested for the Shuttle/Centaur missions? The reason I'm asking is that it was always flown on the IUS missions, so the question really is if the liner was flown for the IUS or the actual spacecrafts that the IUS carried.

Liner was independent of payload.
If it was independent of the payload why was it carried? What exactly was the liner's purpose? Some sort of payload bay protection?
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline Jim

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Re: The Shuttle Centaur
« Reply #124 on: 06/09/2018 02:35 PM »
Does anyone know if the payload bay liner flight kit was manifested for the Shuttle/Centaur missions? The reason I'm asking is that it was always flown on the IUS missions, so the question really is if the liner was flown for the IUS or the actual spacecrafts that the IUS carried.

Liner was independent of payload.
If it was independent of the payload why was it carried? What exactly was the liner's purpose? Some sort of payload bay protection?

To help keep the payload bay clean

Offline DaveS

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Re: The Shuttle Centaur
« Reply #125 on: 06/09/2018 02:44 PM »
Does anyone know if the payload bay liner flight kit was manifested for the Shuttle/Centaur missions? The reason I'm asking is that it was always flown on the IUS missions, so the question really is if the liner was flown for the IUS or the actual spacecrafts that the IUS carried.

Liner was independent of payload.
If it was independent of the payload why was it carried? What exactly was the liner's purpose? Some sort of payload bay protection?

To help keep the payload bay clean
So it would have been flown on the Shuttle/Centaur missions?  What exactly was the contamination concern that merited the liner on the missions it was flown on? The HST missions I can understand. But Galileo, Magellan and Ulysses were all orbiters (OK, Galileo carried the atmospheric probe but still).
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline Jim

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Re: The Shuttle Centaur
« Reply #126 on: 06/10/2018 12:52 AM »
They have optics, reflective surfaces, mechanisms and such
« Last Edit: 06/10/2018 12:53 AM by Jim »

Offline DaveS

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Re: The Shuttle Centaur
« Reply #127 on: 06/10/2018 01:10 AM »
They have optics, reflective surfaces, mechanisms and such
So the liner is to protect the payloads from offgassing from the orbiter? Si the regular MLI blankets is pretty dirty when it comes to offgassing on-orbit? Is this something that was learned from the IECM data gatherings they did with it on STS-2 and STS-4?
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

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