In missile propulsion technology it is conventional to employ solid rocket boosters. These boosters are loaded with solid propellants, which are energetic compositions where raw materials are comprised of solid particulates, such as fuel, and oxidizer particles, in which are dispersed and immobilized throughout a binder (polymeric) matrix. The processability of these compositions is not simple ...

Four sample space launch missions were designed using rotating momentum transfer tethers (bolos) within low Earth orbit and a previously unknown phenomenon of ―aerospinning‖ was identified and simulated. The momentum transfer tethers were found to be only marginally more efficient than the use of chemical rocket boosters. Insufficient power density of modern spacecrafts was identified as the pr...

Two launch vehicle concepts based on technologies available today or in a short term future in Western Europe are presented. The design of both launchers has the goal of exploiting synergies with current European programs to limit development and operational costs. Technologies of particular interest here are the high performance solid rocket motors with carbon-epoxy filament wound monolithic m...

[Abstract] A model of the case breach fault for solid rocket boosters (SRBs) that takes into account burning-through hole in propellant, insulator and metal layers of a rocket case is developed. Melting of the metal layer and an ablation of the insulator layer in the presence of hot gas flow through the hole are analyzed in detail. Dynamics of the lateral (side) thrust produced by the growing h...

The Front Cover shows a symbolic rocket. main structure of the rocket represents ZSM-5 zeolite, and boosters represent added Ga Cr species, respectively. This picture means that propane is rapidly converted into propene hydrogen on modified then BTX aromatics. In their Full Paper, B. Xu et al. introduced to Ga/ZSM-5 catalyst by tuning impregnation sequence amount. Plenty Cr3+ species strong int...

The Space Transportation System (STS) consists of three primary components; an Orbiter Vehicle, an External Fuel Tank, and two Solid Rocket Boosters. The Orbiter Vehicle and Solid Rocket Boosters are reusable components, and as such, they are susceptible to durability issues. Recently, the fatigue load spectra for these components have been updated to include load histories acquired during the ...

A theory of the Hindenburg fire that has recently gained popular acceptance proposes that the paint on the outer surface of the airship caused both the fire and its rapid spread. However, application of physical laws and numerical calculations demonstrate that the theory contains egregious errors. Specifically: (1) The proposed ignition source (an electrical spark) does not have sufficient ener...

T HE development of rocket .boosters and fuels c,~pable of high orbital payloads, including manned space probes, has drawn attention to the immediate application of biologic studies in the weightless state. The meager evidence available from the dog in Sputnik II encourages us to believe that the 'human organism can endure zero gravity, but complications may arise from prolonged exposure. Atten...