As we all know, solids are a dead end for economical reusability (as recovering the Shuttle SRBs turned out). Assuming that reusable rockets will be cheaper and replace expendable launch systems, what will happen to manufacturers of solid rocket stages which apparently need to keep a manufacturing base for ICBMs?
Quote from: Pipcard on 07/09/2018 01:07 amAs we all know, solids are a dead end for economical reusability (as recovering the Shuttle SRBs turned out). Assuming that reusable rockets will be cheaper and replace expendable launch systems, what will happen to manufacturers of solid rocket stages which apparently need to keep a manufacturing base for ICBMs?I question your assumptions.Solid motors are being developed for Ariane 6, for Vega-C, for Vulcan, for Omega, for H-3, and for Space Launch System. In addition, they are currently used by Antares, Atlas 5, Delta 4, Ariane 5, Vega, PSLV, GSLV, GSLV Mk 3, H-2A, and H-2B, and I may have missed a few rockets in these lists.So, not a dead end, clearly. - Ed Kyle
Quote from: edkyle99 on 07/09/2018 01:22 amI question your assumptions.Solid motors are being developed for Ariane 6, for Vega-C, for Vulcan, for Omega, for H-3, and for Space Launch System. In addition, they are currently used by Antares, Atlas 5, Delta 4, Ariane 5, Vega, PSLV, GSLV, GSLV Mk 3, H-2A, and H-2B, and I may have missed a few rockets in these lists.So, not a dead end, clearly.They commercial viability of all those is questionable at best over the next 10 years or so.But the answer to the original question is simple: solids production, like orbital launch, will be propped up for national security reasons, no matter how commercial viable, or not viable, it is for orbital launches.
I question your assumptions.Solid motors are being developed for Ariane 6, for Vega-C, for Vulcan, for Omega, for H-3, and for Space Launch System. In addition, they are currently used by Antares, Atlas 5, Delta 4, Ariane 5, Vega, PSLV, GSLV, GSLV Mk 3, H-2A, and H-2B, and I may have missed a few rockets in these lists.So, not a dead end, clearly.
Quote from: Pipcard on 07/09/2018 01:07 amAs we all know, solids are a dead end for economical reusability (as recovering the Shuttle SRBs turned out). Assuming that reusable rockets will be cheaper and replace expendable launch systems, what will happen to manufacturers of solid rocket stages which apparently need to keep a manufacturing base for ICBMs?The short answer is that they'll be busy for the next decade or so producing new ICBM's for the Pentagon's GBSD program. But there's already a whole thread devoted to discussing the solid propellant industrial base:https://forum.nasaspaceflight.com/index.php?topic=43194.0