Author Topic: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013  (Read 236127 times)

Offline Stan Black

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #320 on: 10/29/2013 03:37 pm »

The premature start was caused by failure of “Сборка 03”, previously a component changed after twelve launches. Instead it was decided to use it for 32 launches, but failed at 29.

By "premature start" does this refer to the 400 millisecond difference in actual launch time from the nominal launch time? What was the impact of this failure?

Apparently yes. That component (8U259.SB03) is apparently an electric connector on the base of the launch pad that connects to the rocket, and it was released prematurely. At that time all 6 1st stage engines were (as reported earlier) not yet up to full thrust and their chamber pressure were at 90 kgf/cm² instead of the usual 150-155 kgf/cm². Had the situation continued the rocket would have issued a "engine damaged" command that would have swiveled engine no.4 on the pitch axis to counter-act, but the engines started nominally and the command was not issued. Therefore this has no implications to the accident.

Source: Novosti Kosmonavtiki No. 9-2013 via http://www.kosmonavtika.com/lancements/2013/02072013/02072013.html

I am curious if any other damage occurred to the launch site with the rocket taking off at full thrust. For RD-276 the Proton take off at a reduced thrust then ‘Разрешение регулирования тяги’ happens at 6 seconds.

Offline Nicolas PILLET

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #321 on: 12/09/2013 11:38 pm »
Nicolas PILLET
Kosmonavtika : The French site on Russian Space

Offline A12

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #322 on: 12/10/2013 04:49 pm »


It seems that someone was quietly walking without masks, along with others well equipped.
On a funny side, wonderful speaker ;D on this channel.



Offline Stan Black

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #323 on: 03/09/2014 02:44 pm »
It now looks like they are allocating the ‘blok’ numbers on a sequential, per launch basis. This was allocated blok 48, but that has now been given to the next launch.

http://www.oosa.unvienna.org/pdf/icg/2013/icg-8/wgA/A1_1.pdf

Offline jumpjack

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #324 on: 03/09/2014 07:28 pm »
Quote from: LegendCJS link=topic=31191.msg1113750

The Mars lander that crashed on landing had a code bug causing the engine control computer to not ignore the known in advance false positive signal that the touch down sensors were going to generate when the spring loaded legs snapped open at 100s m height above actual touch down.
This is very interesting, have you got any link to official reports?
« Last Edit: 03/09/2014 07:29 pm by jumpjack »
-- Jumpjack --

Offline Nicolas PILLET

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #325 on: 05/07/2014 08:43 pm »
I publish here an exclusive high-resolution slow-motion video of the launch :

http://www.kosmonavtika.com/lancements/2013/02072013/02072013photos.html

(last video in the list)
Nicolas PILLET
Kosmonavtika : The French site on Russian Space

Online Satori

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #326 on: 05/07/2014 09:28 pm »
I publish here an exclusive high-resolution slow-motion video of the launch :

http://www.kosmonavtika.com/lancements/2013/02072013/02072013photos.html

(last video in the list)

Amazing footage Nicolas! Thanks for sharing!!!

Offline eeergo

That's a truly excellent video, thanks so much Nicolas for hosting it!

The detachment of the Glonass assembly is very visible now, distinguishable from the fairing fragments, and the side boosters breaking apart are a mesmerizing sequence (apart from showing very clearly how they are built, by the way they break up).

Does anyone care to hypothesize what was the cause for the aft breakup, just after the Blok-DM and payload assembly are separated? It almost looks to me like it starts at the *base* of the core, rather than by a side tank being ripped off?

But most spectacularly of all, you can see a lightning bolt (!!!) streaming from the Proton's aft when it's just a few meters above the ground!
-DaviD-

Offline gospacex

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #328 on: 05/09/2014 11:27 am »
Russians still refuse to add FTS to this contraption?

Offline SaxtonHale

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #329 on: 05/09/2014 06:33 pm »
Refuse is an odd verb.

Already been discussed.

Offline Nicolas PILLET

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Nicolas PILLET
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Offline cartman

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #331 on: 06/21/2014 11:08 am »
Thank you Nicolas for hosting this amazing material!

Online Satori

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #332 on: 01/11/2015 02:56 pm »
Not sure if this video was posted before, but here it is...


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Offline mn

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #334 on: 05/27/2015 10:50 pm »
Criminal Charges Brought Against Khrunichev Employees for Proton Accident

http://www.parabolicarc.com/2015/05/27/criminal-charges-brought-khrunichev-employees-proton-accident/

Offline Stan Black

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #335 on: 01/15/2016 09:17 am »
The cost of the rocket:-

Proton-M №53543
1 242 050 000 Russian ruble
Contract №Ф33-02-10/ЕОЗ dated 20th March 2010
http://sudact.ru/arbitral/doc/TFEsv45Gx7dh/

Fairing
140 808 600 Russian ruble
Contract №Ф33-06-10/ЕОЗ dated 19th May 2010
http://sudact.ru/arbitral/doc/zzRLolKeV7WJ/
http://www.zakupkiold.gov.ru/Tender/ViewPurchase.aspx?PurchaseId=740237
http://www.zakupki.gov.ru/epz/contract/contractCard/common-info.html?reestrNumber=0173100004511000071

DM-03 №2L upper stage
391 000 000 Russian ruble
Contract №Ф33-02-09/ЕОЗ dated 25th September 2009
« Last Edit: 03/09/2016 09:50 am by Stan Black »

Offline FutureSpaceTourist

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Re: FAILURE: Proton-M/DM-03 with 3xGlonass-M - July 2, 2013
« Reply #336 on: 07/03/2023 07:57 pm »
10 year anniversary yesterday prompted this thread on the cause:

Quote
This Proton launch where they had literally hammered in the inertial measurement units upside down will always be one of the most epic launch failures!

https://twitter.com/johnpalme/status/1675607917070893057

Quote
Not true - I ran the US Failure investigation.

Quote
The Yaw rate sensors were a blind install with off center pin holes that were supposed to make sure that the unit was installed in correct orientation. Unfortunately the pins on the mounting bracket were only press fit...

Quote
...so when the new tech installed them blind by reaching through an access hole, he slid them onto the studs, and then torqued the nuts down on the studs. The act of torquing the studs drove the press fit pins back in the bracket...

Quote
...and allowed the unit to sit flush on the bracket. The debris of the units showed the mark on the baseplate that the alignment stud made as it was driven back into the bracket. Root cause....

Quote
They were building so many Protons, they used a secondary horizontal stand at the factory for building the stage. The primary stand only allowed 1 orientation of +Y up so the install documentation did not ask for orientation verification. The secondary stand allowed...

Quote
either +Y or -Y up, and this LV was in -Y up. The tech installed the unit per the documentation, but the stage was inverted. The quality person looked through an access hatch after install and verified the orientation arrow on the unit was pointing up per the documentation.

Quote
The tech was new so did not realize the force that was needed for the nuts was atypical, and the quality documentation did not ask for verification that alignment studs were in the holes.

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