KSLV 1 (Naro 1) - STSAT 2B (Launch failed, June 10, 2010)

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Zipi

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kslv-1_domain-b.jpg


Launch time: 07:30-09:40 GMT (3:30-5:40 am EDT)
Launch site: Naro Space Center, South Korea

The Korea Space Launch Vehicle 1 will launch on its second flight from a new launch site on the southern tip of Korea. The KSLV 1 rocket uses a Russian liquid-fueled first stage and a Korean solid-fueled upper stage. The payload for this launch was the Science and Technology Satellite 2B (STSAT 2B) demonstration spacecraft.

STSAT-2B Wikipedia Article: http://en.wikipedia.org/wiki/STSAT-2B
KARI's STSAT-2 Page: http://new.kari.re.kr/english/02_cms/cm ... nu_seq=119



KSLV 1 (Naro 1) Launch Vehicle

Naro 1 Wikipedia Article: http://en.wikipedia.org/wiki/Naro-1
Astronautix KSLV Page: http://www.astronautix.com/lvs/kslv.htm
GlobalSecurity.org KSLV Page: http://www.globalsecurity.org/space/world/rok/kslv.htm
KARI's Naro 1 English Overview: http://new.kari.re.kr/english/02_cms/cm ... enu_seq=30
KARI's Naro 1 Korean Page: http://translate.google.com/translate?j ... l=ko&tl=en
(without Google Translation: http://www.kslv.or.kr/kslv/kslv_biz.asp?mn=1)

kslv_in.jpg


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First Stage

Khrunichev built first stage which is based on Angrara Rocket family design, but has less performance. It has one RD-151 engine burning RP-1/LOX

RD-151 in Wikipedia: http://en.wikipedia.org/wiki/RD-170#RD-151
Khrunichev's Angara Page: http://www.khrunichev.ru/main.php?id=44&lang=en
Angara Rocket Family in Wikipedia: http://en.wikipedia.org/wiki/Angara_(rocket_family)
Khrunichev's KSLV Article: http://www.khrunichev.ru/main.php?id=73&lang=en

kslv_1.jpg


Second Stage

One KSR-1 solid rocket motor built by KARI

Astronautix KSLV Page: http://www.astronautix.com/stages/ksr1.htm

Thrust: 86,2kN
Specific Impulse: 250 sec
Burn Time: 25 sec



KSLV_5.jpg


Naro Space Center

Naro Space Center Wikipedia Article: http://en.wikipedia.org/wiki/Korea_Space_Center
KARI's Official English Site: http://new.kari.re.kr/english/
Korean Aerospace Research Institute Wikipedia Article: http://en.wikipedia.org/wiki/Korea_Aero ... _Institute
KARI's Space Related Photo Gallery: http://new.kari.re.kr/english/02_cms/cm ... st&iPage=1
Google Maps Link: http://maps.google.com/maps?t=h&q=34.43 ... 07585&z=17

 
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EarthlingX

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Re: June 9 KSLV 1 (Naro 1) - STSAT 2B

This looks nice :

PYH2010060712030001300_P2.jpg


I thought they were using RD-191 for the first stage, not RD-151 ?

This clears it :

RD-151
The RD-151 is the RD-191 with thrust reduced to 170 tonnes. This engine was fire-tested on July 30, 2009. The first flight test of this engine was conducted on August 25, 2009 as part of the first launch of South Korean Naro-1 rocket. The first stage of the Naro-1 rocket is made of the universal rocket module (URM) from the Angara rocket.[4][5]
 
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Zipi

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EarthlingX

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Re: June 9 KSLV 1 (Naro 1) - STSAT 2B

english.yonhapnews.co.kr : S. Korea aborts space rocket launch
2010/06/09 15:56 KST

By Lee Joon-seung
NARO SPACE CENTER, South Korea, June 9 (Yonhap) -- South Korea postponed the blastoff of its Naro-1 rocket due to problems in the launch pad's fire extinguisher system, the government said on Wednesday.

The Ministry of Education, Science and Technology said the launch process was suspended after engineers discovered a serious leak in one of the three fire extinguisher nozzles on the launch pad at the Naro Space Center off the country's south coast.

The leak that took place on 1:58 p.m. caused the fire extinguisher fluid to cover the base of the launch pad area. The fire extinguishers are used to prevent the blast of the engines from destroying the launch pad on blastoff.

"The leak in the fire extinguisher fluid forced the launch originally set for 5 p.m. to be called off because technicians need to check the problem," said ministry spokesman Pyun Kyung-bum. He speculated that electrical systems may have been at fault.

He said the problem is not directly related to the rocket itself but requires careful examination since it is directly linked to the safety of the launch.

"Both South Korean and Russian engineers are looking at the problem to see what can be done," he said, without going into detail.

"A joint flight test committee has been convened to determine when the launch can take place again," Pyun said.

The rocket had not been fueled with kerosene or oxidation agents at the time the launch mission was called off.
 
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davp99

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Re: KSLV 1 (Naro 1) - STSAT 2B (delayed)

How do you say KABOOM...137 secs in flight
 
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EarthlingX

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Re: KSLV 1 (Naro 1) - STSAT 2B (delayed)

http://www.spaceflightnow.com ; South Korea loses contact with rocket after launch
BY STEPHEN CLARK
SPACEFLIGHT NOW

Posted: June 10, 2010

Updated @ 6:15 a.m. EDT

South Korea launched a half-Russian, half-Korean rocket toward Earth orbit from the country's southern coast Thursday, but officials say they lost communications with the vehicle approximately two minutes after liftoff.

The Korea Space Launch Vehicle, or KSLV 1, blasted off from the Naro Space Center at 0801 GMT (4:01 a.m. EDT), or at 5:01 p.m. local time. The rocket flew through a nearly transparent deck of clouds about a minute after liftoff.

Live video from the space center showed no signs of any problems during the early moments of the launch, but officials with the Korea Aerospace Research Institute say they lost contact with the rocket 137 seconds into the flight.

At that point, the booster should have been flying between 40 and 50 miles in altitude on the power of a Russian first stage built by Khrunichev, the contractor in charge of the workhorse Proton launcher.

Some Korean news reports say the rocket may have exploded and crashed as controllers lost communications with the booster.

A ground station in Norway was expected to acquire a beacon signal from the rocket's payload around 0940 GMT (5:40 a.m. EDT) to confirm whether the flight ultimately reached orbit.
 
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Zipi

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Re: KSLV 1 (Naro 1) - STSAT 2B (Launch failed, July 10, 2010)

Explosion:
[youtube]http://www.youtube.com/watch?v=JC8UsaoJO64[/youtube]
 
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Zipi

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1080p Quality Launch Replays:
[youtube]http://www.youtube.com/watch?v=rhdxBt71JYI[/youtube]
 
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EarthlingX

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Cross-post :cool: with :

http://www.universetoday.com : South Korean Rocket Explodes 137 Seconds Into Flight
June 10th, 2010

Written by Nancy Atkinson

[youtube]http://www.youtube.com/watch?v=gqHSp9hDyWE[/youtube]

"We believe that the Naro rocket is likely to have exploded," Ahn Byong-man, Minister of Education, Science and Technology told reporters. "We are sorry for failing to live up to people's expectations."

news.bbc.co.uk : South Korea rocket 'explodes' moments after take-off (with video)
 
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EarthlingX

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Zipi":3bwjr3ss said:
Something strange with control going on, i think, at second launch replay, 4:10 in the video ?

As if launch tower release didn't function properly, causing engine over-steering, which got later balanced ? This make any sense ?
There is also no visible problem, so perhaps they had a fuel leak ?
 
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clint_dreamer

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That sucks. I hate to see all that hard work destroyed in seconds.
 
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EarthlingX

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clint_dreamer":32hmui87 said:
That sucks. I hate to see all that hard work destroyed in seconds.
This are hard learned lessons. Perhaps it hints on the value of a working system.

After checking HD video one more time, i noticed red labels on the rocket track, first two. There was no video at 2:17 of the flight.
 
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nimbus

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How does a rocket explode so stealthily that no one knows for sure?
 
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davp99

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These are times i wish i could understand Korean..But all in all, that is a darn nice looking rocket.. Russian 1st stage-liquid fueled, and a Korean-Solid for the 2nd stage,,i'm really surprised , would have thought any problems would have been with the home built solid, any reports out ?? yet ?? Electronics / bad valves ??,,

oh well..back to the drawing table.. :?:
 
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Zipi

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nimbus":uar7eedc said:
How does a rocket explode so stealthily that no one knows for sure?

If you take a look of the video I first posted you can see why... Seems that it ruptures somehow than explodes. That also can be a premature staging event, but we don't for sure until some official information is presented. And you can count on Khrunitsev that they will release a press release what actually happened...

For me it seems that the vehicle achieved max Q and after that something happened. But that "max Q" effect may also be something related to the malfunction of the rocket. First stage RD-151 motor is scaled down version of RD-191 so I'm not very keen to believe it was an engine failure. Or maybe it achieved max Q, but didn't slow down?
 
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EarthlingX

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nimbus":j530ky0o said:
How does a rocket explode so stealthily that no one knows for sure?
By emptying the flight path with security measures, i guess. It was mostly over the water, and fish don't talk .. :roll:

It was also rather high, not so much air anymore for sound .. ?

Zipi":j530ky0o said:
If you take a look of the video I first posted you can see why... Seems that it ruptures somehow than explodes. That also can be a premature staging event, but we don't for sure until some official information is presented. And you can count on Khrunitsev that they will release a press release what actually happened...

For me it seems that the vehicle achieved max Q and after that something happened. But that "max Q" effect may also be something related to the malfunction of the rocket. First stage RD-151 motor is scaled down version of RD-191 so I'm not very keen to believe it was an engine failure. Or maybe it achieved max Q, but didn't slow down?
 
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nimbus

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That's what I thought, but I wasn't sure, and so far I've only seen articles saying "exploded". Thanks.
 
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MarkStanaway

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As the first stage is basically the same as the new Angara launch vehicle being developed by Khrunichev I guess they will be pretty keen to get to the bottom of the cause of this setback. Angara is due to commence operations from a new facility at Plesetsk in 2011 if they ever get it finished.
 
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EarthlingX

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Medvedev and Putin both declared support for a space program, and i see no complaining in my regular Russian media checks, but i do see improvements in time, on their websites, program, development, providing publicly accessible information information and so on.
I'm not sure how much money is involved, but i think they got quite an increase. I can check for numbers.

bits and pieces here :

http://www.russianspaceweb.com/russia_2000_2010.html
To restore Russian presence beyond Earth, the Putin administration started drafting the nation's long-term space strategy. On October 22, 2005, the Russian government signed a decree No. 635, approving Federal Space Program for 2006-2015 and worth 305 billion rubles. (299) The industry was directed to propose its projects and plan its activities in the timeframe of a two-phase Federal Space Program, FKP:

* Short-term projects and goals until 2015-2020
* Long-term projects planning for the period 2020-2040

The Russian space budget continued growing during the 2000s, almost doubling by 2009.

In the same time frame, as an example, NASA budget went from 0.75 % federal budget to 0.52 %.
http://en.wikipedia.org/wiki/NASA_Budget
 
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JonClarke

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This is very disapointing. Especially so since there previous attempt was closer to full success. I hope they keep trying and have success soon. The more people in the launch business the better.
 
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Zipi

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MOSCOW, June 11 (Xinhua) -- Defects in the control system were to blame for the failure to launch a South Korean rocket on Thursday, spokesman for Russian company Energomash told the Interfax news agency Friday.

The company built the first stage of the Korea Space Launch Vehicle-1 (KSLV-1) rocket, also called naro-1 rocket, which functioned as planned, according to the spokesman.

"What happened was not our fault. We did everything right. The Russian-made engine functioned as planned," he said, adding that no reports on any problems linked with its operations were made.

..........................

Moscow-based Khrunichev space research center said the same day that Russia and South Korea would establish a joint commission to investigate the cause of the flop.
Full Article: http://news.xinhuanet.com/english2010/w ... 345990.htm
 
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mithridates

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Yeah, a real disappointment but at least this week the Falcon 9 was a smashing success so it was a good week overall. I liveblogged the launch a bit:

http://www.pagef30.com/2010/06/korean-n ... ching.html

(I've lived in Korea for seven years, have been looking forward to Korea having its own rocket since it was first announced in 2003)

There's a Korean media player called Gom Player that in the Korean version has links to a number of live feeds, including this one. If anyone really wants to prepare for the next one you might want to start ahead of time by downloading it and then finding a Korean friend to make you an ID, or send in a passport scan. Registering on Korean sites is a REALLY annoying process if you're not Korean. I thought I was going to be at home to watch it on TV but I ended up being at Starbucks with no time to register so I was only able to watch it 90 seconds at a time.

Anyway, Russia is contracted for at least the next flight so there's definitely going to be a next launch.
 
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