Author Topic: Chang'e-5 lunar sample return, CZ-5 - Wenchang - 2019  (Read 45117 times)

Offline beidou

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"Some previous reports claimed that research on the Chang'e-5 probe would be ended. The rumors were denied by Zhang Yuhua, deputy commander in chief and deputy chief designer of the Chang'e-3 rover system, who said the Cheng'e-5 is being developed and will land on the moon by 2020, China National Radio reported on Friday. " Source: http://www.globaltimes.cn/content/830521.shtml#.UqI759JwqSo

But from the Chinese version of the report, the launch will be in 2018. http://bbs.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=4587&pid=277038&fromuid=24484
« Last Edit: 07/28/2017 11:15 AM by Satori »

Offline beidou

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #1 on: 12/06/2013 08:15 PM »
Two slides from a presentation on Chang'e-5.

Offline Stan Black

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #2 on: 12/06/2013 08:45 PM »
So it is a combination of Chang’e-1 and Change’e-3?

http://usa.chinadaily.com.cn/china/2013-03/14/content_16306808.htm

Offline Blackstar

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #3 on: 12/07/2013 12:37 AM »
But from the Chinese version of the report, the launch will be in 2018. http://bbs.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=4587&pid=277038&fromuid=24484

I think they've been talking about sample return for 2017 for many years now. That has led to confusion with people assuming that they meant a manned landing by 2017. Bad translations and wishful thinking.

Online Phillip Clark

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #4 on: 12/07/2013 04:57 AM »
But from the Chinese version of the report, the launch will be in 2018. http://bbs.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=4587&pid=277038&fromuid=24484
I think they've been talking about sample return for 2017 for many years now. That has led to confusion with people assuming that they meant a manned landing by 2017. Bad translations and wishful thinking.

Back in 1999 I was at the BBC commentating about the 30th anniversary of Apollo 11.   When asked when we would return to the Moon I said that I expected China would have had its first piloted flight by 2005 and could put a man on the Moon in time for the 50th anniversary.   Rex Hall told me that later in the day there was a report on a space philately group, saying that "someone" had been on the BBC predicting a Chinese manned landing on the Moon by 2005 .............

Online Phillip Clark

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #5 on: 12/14/2013 07:25 AM »
I would love to know the rationale behind the Chinese deciding to launch the ascent stage from the lunar surface into selenocentric orbit, do lunar-orbit rendezvous and then return to Earth, rather than the simpler Soviet approach of a direct return from the lunar surface.

Admittedly the Soviet design without a pitch-over capability meant that the landings were restricted to 55-60 deg E, but the addition of attitude-control thrusters could overcome this and widen the potential landing areas.

Offline darkbluenine

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #6 on: 12/14/2013 01:42 PM »
I would love to know the rationale behind the Chinese deciding to launch the ascent stage from the lunar surface into selenocentric orbit, do lunar-orbit rendezvous and then return to Earth, rather than the simpler Soviet approach of a direct return from the lunar surface.

Probably to demonstrate LOR for a future sample return or crewed mission.

Online Phillip Clark

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #7 on: 12/14/2013 03:16 PM »
I would love to know the rationale behind the Chinese deciding to launch the ascent stage from the lunar surface into selenocentric orbit, do lunar-orbit rendezvous and then return to Earth, rather than the simpler Soviet approach of a direct return from the lunar surface.
Probably to demonstrate LOR for a future sample return or crewed mission.

Sven Grahn on Facebook made the same suggestion about a crewed mission, but it still seems to over-complicate what is already a complicated mission profile for an automatic spacecraft.   Especially since the Chinese have yet to commit to a manned lunar programme, never mind the flight profile.

Offline savuporo

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #8 on: 12/14/2013 03:21 PM »
Another line of wishful thinking : i hope they are targeting polar craters, and they need the orbiter overhead for communications relay.
Orion - the first and only manned not-too-deep-space craft

Offline Stan Black

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #9 on: 12/14/2013 06:11 PM »
I would love to know the rationale behind the Chinese deciding to launch the ascent stage from the lunar surface into selenocentric orbit, do lunar-orbit rendezvous and then return to Earth, rather than the simpler Soviet approach of a direct return from the lunar surface.
Probably to demonstrate LOR for a future sample return or crewed mission.

Sven Grahn on Facebook made the same suggestion about a crewed mission, but it still seems to over-complicate what is already a complicated mission profile for an automatic spacecraft.   Especially since the Chinese have yet to commit to a manned lunar programme, never mind the flight profile.

Will this help with Mars sample return?

Online Phillip Clark

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #10 on: 12/14/2013 06:29 PM »
I would love to know the rationale behind the Chinese deciding to launch the ascent stage from the lunar surface into selenocentric orbit, do lunar-orbit rendezvous and then return to Earth, rather than the simpler Soviet approach of a direct return from the lunar surface.
Probably to demonstrate LOR for a future sample return or crewed mission.
Sven Grahn on Facebook made the same suggestion about a crewed mission, but it still seems to over-complicate what is already a complicated mission profile for an automatic spacecraft.   Especially since the Chinese have yet to commit to a manned lunar programme, never mind the flight profile.
Will this help with Mars sample return?

Yes it would ....... are the Chinese hoping for that about 8-10 years after Chang'e 5?   I cannot remember.

Online Kryten

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #11 on: 12/14/2013 06:39 PM »
 What's the source for the 'and rover' in the title? I haven't seen any sources claiming one will be on this mission.

Online plutogno

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #12 on: 12/16/2013 04:17 PM »
testing the recovery of CE-5

Offline savuporo

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #13 on: 12/16/2013 04:19 PM »
This thread title should be edited to 2017 according to multiple reports

http://news.xinhuanet.com/english/china/2013-12/16/c_132971252.htm
Orion - the first and only manned not-too-deep-space craft

Offline Star One

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Offline beidou

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2018
« Reply #15 on: 12/16/2013 05:46 PM »
Good article from Aviation Week.

 http://www.aviationweek.com/Article.aspx?id=/article-xml/awx_12_16_2013_p0-647298.xml

Unfortunately, no new information has been disclosed in this article:(

Offline Steven Pietrobon

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2017
« Reply #16 on: 12/17/2013 08:07 AM »
Here's a nice colour image of Chang'e 5, including the orbiter. Also attached is an early Chinese paper on the lander. These were previously posted here in the public NSF forum (I don't know who posted them).
« Last Edit: 12/17/2013 08:11 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online plutogno

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2017
« Reply #17 on: 12/17/2013 04:46 PM »
an exhibition panel on CE-5

Offline Lsquirrel

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Re: Chang'e-5 lunar probe and rover, CZ-5 - Wenchang - 2017
« Reply #18 on: 12/30/2013 01:02 AM »
Here's a reentry module concept,may be Chang'e-5
« Last Edit: 12/30/2013 01:02 AM by Lsquirrel »

Online Artyom.

Preparation for Chang'e-5 launch on schedule

Preparation for the 2017 launch of China's lunar probe Chang'e-5 is going as planned, the country's leading space scientist Ye Peijian told Xinhua on Saturday.

Chang'e-5, as part of China's third-phase lunar program, is expected to bring back moon rock samples to Earth, a move hailed by Ye as "a historic moment" for the country.

China's lunar program covers three stages. It completed the second phase after the Chang'e-3 probe soft-landed on the Moon on Dec. 14, with the country's first moon rover Yutu (Jade Rabbit) aboard.

But Yutu has experienced a mechanical problem that scientists are still trying to repair.

Ye said the Chang'e-3 mission has helped China to better understand the lunar environment and has paved the way for further explorations.

As the backup probe of Chang'e-3, Chang'e-4 should not repeat the mission, but do something more "innovative and meaningful", said Ye, without elaborating.

The more sophisticated Chang'e-5 mission, including unmanned sampling and returning, requires technology breakthroughs in moon surface takeoff, sampling encapsulation, rendezvous and docking in lunar orbit, as well as high-speed Earth reentry.

To make sure the returning mission is a success, a Chang'e-5 test probe will be launched this year to rehearse the route, Ye disclosed.

http://news.xinhuanet.com/english/china/2014-03/01/c_133152111.htm
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