China's Space Program News Thread

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gelgoog

Brigadier
Registered Member
It is the Frankenrocket to compete with SLS. I think it is supposed to be available until the end of this decade.
The typical design cycle of a rocket engine is 5 years from initial design to engine availability. It typically takes another 5 years to design a rocket once you do have the engines.

The Soviet Union also made a similar rocket engine for the Energia (RD-0120) but the rocket was eventually cancelled as uneconomic.
The USA had a program to upgrade the RS-25 with RD-0120 technologies like the channel wall nozzle but then the Shuttle was also cancelled because of reliability problems.
 

taxiya

Brigadier
Registered Member
^^
Any estimated time to put this engine in service? Because I can't find any data on the internet.
It is used by CZ-9, so whenever CZ-9 is launched is the answer. The engine could be ready earlier than CZ-9 as a whole though. So talking about the engine alone is meaningless. It is better to watch the test milestones. So far, the estimated time of building the first full-sized engine is 2021.
 

Quickie

Colonel
It is the Frankenrocket to compete with SLS. I think it is supposed to be available until the end of this decade.
The typical design cycle of a rocket engine is 5 years from initial design to engine availability. It typically takes another 5 years to design a rocket once you do have the engines.

The Soviet Union also made a similar rocket engine for the Energia (RD-0120) but the rocket was eventually cancelled as uneconomic.
The USA had a program to upgrade the RS-25 with RD-0120 technologies like the channel wall nozzle but then the Shuttle was also cancelled because of reliability problems.

The CZ-9 configuration is very different from SLS. CZ-9 configuration is closer to that of a giant version of the CZ-5 with a larger payload than the SLS (at least for the current initial Block for the Artemis program currently undergoing testing).
 
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Temstar

Brigadier
Registered Member
SLS has just failed the ground test today with a major component malfunction, I think it's done for 2021, the two SRBs will be wasted.
 

Xizor

Captain
Registered Member
Not enough released info to conclude that.
True. But the original test was supposed to be 8 min long and was cut short ( by automatic shutdown of engines). They seem to be investigating the causes.

I'd say neither a failure nor a complete success.
 

SinoSoldier

Colonel
True. But the original test was supposed to be 8 min long and was cut short ( by automatic shutdown of engines). They seem to be investigating the causes.

I'd say neither a failure nor a complete success.

Could be anything from a busted component to a precautionary measure, although I don't expect this to hamper the Artemis missions in any significant way since the RS-25 isn't exactly a new piece of equipment. NASA is denying that this premature cutoff was due to a failure.
 

Xizor

Captain
Registered Member
Could be anything from a busted component to a precautionary measure, although I don't expect this to hamper the Artemis missions in any significant way since the RS-25 isn't exactly a new piece of equipment. NASA is denying that this premature cutoff was due to a failure.
All things considered, covid-19, SLS protracted development and the SpaceX question...

I'm sure the whole program got shifted by atleast an year. Maybe late 2025 or even 2026.
 
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