Very interesting. I wonder what stopped progress on this? Mass growth in the design phase?
a wonderful work, as usual...ciaopeppe
Giuseppe, Very well done. I am impressed. One thing that is interesting to see is the interstage between the 1st and 2nd stage of Proton. I have long believed that the engines were exposed, but what makes you think that a separate spacer is discarded? The Proton-K second stage is shown with a lattice and cylinder around the engines, whereas the original Proton featured just a cylinder; the lattice was only on the 1st stage? Why two events, would not the cylinder have remained attached to the 1st stage?Stan
Quote from: Stan Black on 08/31/2012 09:32 amGiuseppe, Very well done. I am impressed. One thing that is interesting to see is the interstage between the 1st and 2nd stage of Proton. I have long believed that the engines were exposed, but what makes you think that a separate spacer is discarded? The Proton-K second stage is shown with a lattice and cylinder around the engines, whereas the original Proton featured just a cylinder; the lattice was only on the 1st stage? Why two events, would not the cylinder have remained attached to the 1st stage?StanYou pointed out a sharp thing that puzzled me a lot.I was unable to find out a single right reference about that, the intestage exists but it is not clear (at least to me obviously) if it remains attached to the first stage or it is discarded lately (like the interstage between S1C and SII of Saturn V).I choose the second situation because it seems more logical, bur I'm willing to change or modify my drawings (as usual) if more detailed and referenced information came up later in this thread.
Have a look at Proton; it has a solid single cylinder on the 2nd stage. The Chinese CZ rockets have a similiar separation system. Whilst the second stage is shown with the engines covered before integration, illustrations show all of the interstage left attached to the 1st stage.
Quote from: Stan Black on 08/31/2012 09:42 am Have a look at Proton; it has a solid single cylinder on the 2nd stage. The Chinese CZ rockets have a similiar separation system. Whilst the second stage is shown with the engines covered before integration, illustrations show all of the interstage left attached to the 1st stage. Ok Stan, many thanks.
Quote from: corgius on 08/31/2012 09:26 ama wonderful work, as usual...ciaopeppeThanks for the appreciation Giuseppe...
I would not dare fly humans on a proton rocket.
I herd some rumor about the distruction of the LKS mockup in early 90's but I don't know if the history of speznaz involment is true or not (personally I don't believe in it, probably the mock-up was destroyed as result of an accident exactly like the original Buran VKK 01).
Quote from: Nathan on 08/31/2012 09:23 amVery interesting. I wonder what stopped progress on this? Mass growth in the design phase?It wasn't a technical issue rather than a political one.
Quote from: archipeppe68 on 09/01/2012 06:19 pmI herd some rumor about the distruction of the LKS mockup in early 90's but I don't know if the history of speznaz involment is true or not (personally I don't believe in it, probably the mock-up was destroyed as result of an accident exactly like the original Buran VKK 01).The Energiya-Buran book by Hendrickx and Vis also mentions this, but doesn't give sources. "It was demolished in what has been described as an act of sabotage in 1991". (p. 433)
Some of the new material was probably disclosed in a paper given by G. Yefremov and others at the latest "Academic Readings on Cosmonautics" in January 2012. However, only the abstracts of that paper are available online : http://www.ihst.ru/~akm/36t1.htmIt is stressed in the abstracts that much of the information provided on LKS in the media is wrong and that one of the purposes of the paper is to rectify that situation "on the basis of reliable documents". Unfortunately, none of the new information is given in the abstracts.
BTW, there's a nice picture of a Proton/LKS scale model in this issue of NPO Mashinostroyeniya's in-house magazine "Tribuna" :http://www.npomash.ru/press/ru/tribuna020710.htm?l=0&prn=y