I do wonder where all the extra fuel comes from to feed nk33 in soyuz 2-1. The wider body gives so e greater capacity. Will the burn time be shorter?
NK-33 has a deep throttling capability, which reduces prop consumption and increases burn time.
Quote from: baldusi on 10/23/2012 04:55 pmTraditionally, at for least first stage engines, they transfer the technology and serial manufacturing to the LV factory. This happens with Proton, Soyuz, Cyclone and Angara. Zenit appears to be an exception. But I'm sure that would the RD-193 be used for Soyuz, it would be made at Samara. Nobody commented on the fact that the RD-193 is 33% more powerful than the NK-33. Which, at the very least, would mean a reinforcement of the thrust paths.Apparently the nk33-1 would have comparable performance to rd193, if they resumed production. I suppose that cost would be more important than performance and so decision on what engine to use would be based on that.The r7 launch sites look over specified and should deal with the extra thrust? I do wonder where all the extra fuel comes from to feed nk33 in soyuz 2-1. The wider body gives so e greater capacity. Will the burn time be shorter?
Traditionally, at for least first stage engines, they transfer the technology and serial manufacturing to the LV factory. This happens with Proton, Soyuz, Cyclone and Angara. Zenit appears to be an exception. But I'm sure that would the RD-193 be used for Soyuz, it would be made at Samara. Nobody commented on the fact that the RD-193 is 33% more powerful than the NK-33. Which, at the very least, would mean a reinforcement of the thrust paths.
Quote from: Lord spa on 10/23/2012 10:02 pmQuote from: baldusi on 10/23/2012 04:55 pmTraditionally, at for least first stage engines, they transfer the technology and serial manufacturing to the LV factory. This happens with Proton, Soyuz, Cyclone and Angara. Zenit appears to be an exception. But I'm sure that would the RD-193 be used for Soyuz, it would be made at Samara. Nobody commented on the fact that the RD-193 is 33% more powerful than the NK-33. Which, at the very least, would mean a reinforcement of the thrust paths.Apparently the nk33-1 would have comparable performance to rd193, if they resumed production. I suppose that cost would be more important than performance and so decision on what engine to use would be based on that.The r7 launch sites look over specified and should deal with the extra thrust? I do wonder where all the extra fuel comes from to feed nk33 in soyuz 2-1. The wider body gives so e greater capacity. Will the burn time be shorter?If you had 33% more thrust, you'd probably need to increase the tank's volume further to make it worthwhile. And I think the Soyuz-2.1v is sort of volume limited if you want to keep pad compatibility with the rest of the family. In any case, if you put an RD-191 and increase the tank's size, you end up with a pretty clear Angara competitor. I don't think the Russian can have the luxury of a dual and overlapping LV strategy (like the EELV).
how can Soyuz compete with Angara if the Angara cometitor makes the engines for your LV?
Good news from Peresvet (http://samaratoday.ru/news/100779).It's declared that yesterday NK-33A test firing was successful!
Quote from: max_schmurz on 01/16/2013 06:20 amGood news from Peresvet (http://samaratoday.ru/news/100779).It's declared that yesterday NK-33A test firing was successful!This news from Vintay, Samara region:http://samaratoday.ru/news/100779
Nice picture of Volga upper stage:http://www.samspace.ru/multimedia/images/selected_images/105/
I've been told that upper stage Volga has designation 14S46 (14С46).
Any updates on this? Been close to a month.
Quote from: Nicolas PILLET on 01/28/2013 04:39 pmI've been told that upper stage Volga has designation 14S46 (14С46).And another information : TsSKB-Progress's internal designation for Volga was 141KS (141KC).
141КС - блок выведения "Волга" (14С46)
Quote from: Nicolas PILLET on 01/28/2013 06:41 pmQuote from: Nicolas PILLET on 01/28/2013 04:39 pmI've been told that upper stage Volga has designation 14S46 (14С46).And another information : TsSKB-Progress's internal designation for Volga was 141KS (141KC).According to the NK forum it uses both designations: Quote141КС - блок выведения "Волга" (14С46)