Blok D

[Dmitry_V_home]

Thanks to lanista from NK:
http://www.novosti-kosmonavtiki.ru/phpBB2/viewtopic.php?p=757144#757144

[Danderman]

Now, if someone could tell me why the torus tank is slanted, I would appreciate it. Also, I notice that for the canceled LK-1 mission, their upper stage had a slanted fuel tank, too.

[alexw]

Now, if someone could tell me why the torus tank is slanted, I would appreciate it. Also, I notice that for the canceled LK-1 mission, their upper stage had a slanted fuel tank, too.

    WP, FW[L]IW, says it's for better fuel extraction.
          -Alex

[Stan Black]

DM-SL

Total weight (fueled & adapters)	18,600 kg	19,711 kg
Thrust (vacuum)	8,000 kg	8,103 kg
Fuel	4,200 kg	4,560 kg
Oxidiser	10,400 kg	11,290 kg
Burn duration	640 seconds	695 seconds

DM-SL 18L introduced the enlarge propellant tanks; and all since have featured similiar burn durations.

DM-SL 17L for XM3 featured a burn duration of 697 seconds consistent with the enlarged tanks
http://www.sea-launch.com/mission_xm3/images/xm-3_mission_flight_profile.gif

DM-SL 15L for Thuraya-D3 had a burn duration of 641 seconds
http://www.sea-launch.com/mission_thuraya3/images/thuraya-3_mission_flight_profile.gif

http://www.energia.ru/ru/launchers/sea-launch/chron-sl.html

Flight number	DM-SL	Launch date	1st burn	2nd burn	Total burn duration	Payload
7	7Л	09.05.2001	275	366	641	XM-Radio-1	[source]
8	8Л	16.06.2002	244	394	638	Galaxy-IIIC	[source]
12	9Л	11.01.2004	275	363	638	TELSTAR-14/Estrela-do-Sul-1	[source]
10	10Л	08.08.2003
14	11Л	29.06.2004	275	364	639	TELSTAR-18	[source]
11	12Л	01.10.2003	451	189	640	Galaxy-XIII/Horizons-1	[source]
17	13Л	23.06.2005	640		640	INTELSAT-Americas-8	[source]
19	14Л	16.02.2006	300	338	638	Echostar-10	[source]
25	15Л	15.01.2008	259	382	641	Thuraya-D3	[source]
13	16Л	04.05.2004	640		640	DIRECTV-7S	[source]
15	17Л	01.03.2005	509	188	697	XM-Radio-3	[source]
9	18Л	10.06.2003	298	378	676	Thuraya-D2	[source]
16	19Л	26.04.2005	700		700	Spaceway-1	[source]
18	20Л	08.11.2005
21	21Л	18.06.2006	413	281	694	Galaxy-16	[source]
20	22Л	13.04.2006	357	330	687	JCSAT-9	[source]
22	23Л	22.08.2006	509	183	692	KOREASAT-5	[source]
23	24Л	31.10.2006	325	369	694	XM-Radio-4	[source]
24	25Л	31.01.2007	272	426	698	New-Skies-8	[source]
26	26Л	20.03.2008	269	425	694	DIRECTV-11	[source]
27	27Л	21.05.2008	509	185	694	Galaxy-18	[source]
28	28Л	16.07.2008	298	398	696	Echostar-XI	[source]
29	29Л	24.09.2008	509	187	696	Galaxy-19	[source]
30	30Л	20.04.2009	512	182	694	SICRAL-1B	[source]
31	31Л	25.09.2011	340	351	691	Atlantic-Bird-7	[source]

[Nicolas PILLET]

I have updated my list with (almost) all serial numbers.

http://www.kosmonavtika.com/lanceurs/blocd/liste/tous.html

It is interesting to note that 11S824 upper stages sometimes took the serial number of their payloads. This way, you can note that Luna-16 and Luna-17 have probably switched their upper stages...

[Stan Black]

I have updated my list with (almost) all serial numbers.

http://www.kosmonavtika.com/lanceurs/blocd/liste/tous.html

It is interesting to note that 11S824 upper stages sometimes took the serial number of their payloads. This way, you can note that Luna-16 and Luna-17 have probably switched their upper stages...

Interesting… but you should include the Zond accident in July 1968.

[Nicolas PILLET]

Any idea of what happened to 11S861 n°113L ?

[Danderman]

I have updated my list with (almost) all serial numbers.

http://www.kosmonavtika.com/lanceurs/blocd/liste/tous.html

It is interesting to note that 11S824 upper stages sometimes took the serial number of their payloads. This way, you can note that Luna-16 and Luna-17 have probably switched their upper stages...

Interesting… but you should include the Zond accident in July 1968.

If you mean the one that kind of fell over onto the railings, I knew a guy with a big scar on his head from that.

[Danderman]

DM-SL 18L introduced the enlarge propellant tanks; and all since have featured similiar burn durations.

DM-SL 17L for XM3 featured a burn duration of 697 seconds consistent with the enlarged tanks
http://www.sea-launch.com/mission_xm3/images/xm-3_mission_flight_profile.gif

How do these "enlarged" prop tanks compare with the larger prop tanks used in Blok-DM-03?

[Danderman]

Earlier in this thread, there is a discussion about the "03" variant of the 11D58 engine, the one developed as part of the "Dvina" project.

However, Energia has released information about the "MF" version of the engine, a major revision that reduces thrust to 5 tons, but increases ISP to 372-380 seconds, with 390 achievable if Sintin fuel is used.

So, how does this 11D58MF engine fit into the Dvina program???

[Salo]

http://novosti-kosmonavtiki.ru/forum/messages/forum9/topic12524/message904436/#message904436

[Danderman]

http://novosti-kosmonavtiki.ru/forum/messages/forum9/topic12524/message904436/#message904436

In other words, the 11D58MF engine is destined to someday be used on the Block DM-03 system.

Apparently, Block DM-03 is being implemented in 3 stages, with the first being the enlarged prop tank.

The $64,000 question is whether the Blok D LOX tank was derived from the Soyuz Stage I tank, and whether the new "enlarged" DM-03 tank is likewise developed from the Soyuz-2 upper stage LOX tank.

[fregate]

Earlier in this thread, there is a discussion about the "03" variant of the 11D58 engine, the one developed as part of the "Dvina" project.

However, Energia has released information about the "MF" version of the engine, a major revision that reduces thrust to 5 tons, but increases ISP to 372-380 seconds, with 390 achievable if Sintin fuel is used.

So, how does this 11D58MF engine fit into the Dvina program???

11D58MF engine fits into Dvigatel-2015 program, while 11D58MF would be used as a main propulsion system in Dvina-DM program (Note that Dvina is a generic name for various Upper Stage development in Roskosmos)

[Nicolas PILLET]

Look at this chronology of PAS 5 launch, in 1997, with a Block DM-3.

http://88.210.62.157/content/numbers/159/07.shtml

At 74'20", they make a difference between "URMD SOZ" and "RMD SOZ".

Do you know what is the difference ? Is there several types of SOZ ??

[Stan Black]

Look at this chronology of PAS 5 launch, in 1997, with a Block DM-3.

http://88.210.62.157/content/numbers/159/07.shtml

At 74'20", they make a difference between "URMD SOZ" and "RMD SOZ".

Do you know what is the difference ? Is there several types of SOZ ??

It sounds like URMD are just for stabilisation, attitude, not ullage?

[Stan Black]

Contract start date	Scheduled conclusion of contract	Actual conclusion of contract	Contract items	Satellite to be launched	Total cost Ruble	Customer
21.06.2011	00.11.2012		11С861-03 11С861-03-0000-0ТУ	Ekspress-AMU1	425.584.000	Federal Space Agency	[source] [source]
28.03.2013	25.11.2015		496ГК.0000-0 11С861-03.Д0000-0 495ГК.0000-0	GLONASS	495.648.700	Federal Space Agency	[source]
			XXXXXXXXXXXXXXXX	XXXXXXXXXXXXX

[Archibald]

Earlier in this thread, there is a discussion about the "03" variant of the 11D58 engine, the one developed as part of the "Dvina" project.

However, Energia has released information about the "MF" version of the engine, a major revision that reduces thrust to 5 tons, but increases ISP to 372-380 seconds, with 390 achievable if Sintin fuel is used.

So, how does this 11D58MF engine fit into the Dvina program???

That's a pretty amazing performance for a LOX/kerosene engine. How do they achieve that ?

[fregate]

Earlier in this thread, there is a discussion about the "03" variant of the 11D58 engine, the one developed as part of the "Dvina" project.

However, Energia has released information about the "MF" version of the engine, a major revision that reduces thrust to 5 tons, but increases ISP to 372-380 seconds, with 390 achievable if Sintin fuel is used.

So, how does this 11D58MF engine fit into the Dvina program???

That's a pretty amazing performance for a LOX/kerosene engine. How do they achieve that ?

RD-58MF is a LRE for Block DM Dvina Phase II - planned to be ready for test flight in 2015. Isp increase for significant decrease of thrust.     

[Stan Black]

Модернизация разгонного блока «ДМ» для ракеты-носителя тяжелого класса» (в части работ 2013 – 2015 годов)
Шифр ОКР: «Двина-ДМ»
991 017 000 Российский рубль

http://www.zakupki.gov.ru/pgz/public/action/orders/info/common_info/show?notificationId=7439940

[Stan Black]

Angara-A5 from Plesetsk to use DM-03 upper-stage.

Для обеспечения запусков полезных нагрузок с ракетой-носителем «Ангара А5» создается разгонный блок 11С861-03 1-го этапа модернизации в составе комплекса разгонного блока 14К145. В разгонном блоке 11С861-03 1-го этапа модернизации в качестве компонентов ракетного топлива используются:
- в маршевом двигателе: углеводородное горючее (керосин РГ-1) массой 5,3 тонн и жидкий кислород массой 13,7 тонн.
- в двигательной установке ориентации и стабилизации: азотный тетраоксид массой 72 кг и несимметричный диметилгидразин массой 42 кг.

http://www.dvinaland.ru/files/power/departments/comeco/acts/kosmodrom1.pdf