Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles analysis of Performance Nozzle 10 written by and published by . This book was released on 1967 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or using low-cost manufacturing processes. The throat approach was fabricated from a crocidolite-asbestos-fabric prepreg; the one-piece entrance cap-throat inlet from a carbon fabric impregnated with epoxy-novolac; the throat from a standard carbon phenolic prepreg; and the exit cone from a kraft paper prepreg.
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle 6 written by J. J. Warga and published by . This book was released on 1967 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the sixth in a series of reports describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or using low-cost manufacturing processes. The throat insert of nozzle 6 was fabricated from AVCERAM C/S reinforcement and the throat extension from canvas duck. Spallation was observed in the throat, caused by one or both of the following: (1) low breaking strength of the fabric, and (2) damage to the fabric during wrapping. The throat extension of canvas duck performed well. Anisotropic material deposition was observed in the char of the AVCERAM C/S composite. The canvas duck composite exhibited excellent cost advantages for use in the throat extension. (Author).
Download or read book Evaluation of Low Cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle No 8 written by and published by . This book was released on 1967 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the eighth in a series of reports describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost material and/or using low-cost manufacturing processes. The throat approach, throat extension, and exit extension of nozzle 8 were fabricated from canvas duck phenolic; the entrance cap and throat inlet were fabricated from SNAP cured carbon fabric reinforced phenolic; and the throat was fabricated from a double-thick carbon fabric prepreg. Burn-through occurred at the thermocouple plug assembly of the throat approach, caused by improper bonding during assembly. Despite the burn-through, the excellent cost/performance effectiveness of the canvas duck was verified. Severe delamination was experienced in the throat inlet section, which had been wrapped parallel to the centerline. (Author).
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles analysis of Performance Nozzle 10 written by J. J. Warga and published by . This book was released on 1967 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fifth in a series of reports describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or using low-cost manufacturing processes.
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle 11 written by J. J. Warga and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the first of a series describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or low-cost manufacturing processes. The nozzle test configuration and the temperature measurement system is described and a comparison is drawn between predicted and actual performance of the ablative plastics utilized in each nozzle component.
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle 11 written by and published by . This book was released on 1967 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or using low-cost manufacturing processes. The throat approach was fabricated from vacuum-bag-cured V-44 elastomeric insulation; the entrance cap from a Kraft paper composite; the throat inlet from carbon-phenolic; the throat from carbon-polyphenylene; the throat extension from silica-epoxy novolac and the exit extension from asbestos-epoxy novolac.
Download or read book Evaluation of Low Cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle Sn 2 written by H. O. Davis and published by . This book was released on 1967 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the second of a series describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or low-cost manufacturing processes. Comparisons are drawn between the performances of the first two nozzle assemblies and the implications for design of large solid rocket nozzles. (Author).
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle 7 written by J. J. Warga and published by . This book was released on 1967 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the seventh in a series of reports describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or using low-cost manufacturing processes. The throat approach of Nozzle 7 was fabricated from Kraft paper; the entrance cap, throat inlet, and throat from AVCERAM C/S; and the exit cone from 41RPD asbestos. The forward portion of the exit cone exhibited severe, irregular erosion, confirming that even in large size nozzles the material capability must be matched to the requirement. The Kraft paper exhibited excellent cost advantages for use in the throat approach. (Author).
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles Analysis of Performance Nozzle Number 4 written by J. J. Warga and published by . This book was released on 1967 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fourth in a series of reports describing the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost materials and/or low-cost manufacturing processes. The throat insert of this nozzle assembly exhibited extreme spallation. This was attributed to the lower-than-normal density and higher-than-normal residual volatile content of the cured component. A preliminary cost/performance analysis, based on material cost only, confirmed the economy resulting from the use of asbestos composites. Transient temperature readings made by the use of bare-wire thermocouples indicated that the response to temperature fluctuations caused by the flow of percolating decomposition gases was more rapid than when using shielded thermocouples. (Author).
Download or read book Evaluation of Low cost Materials and Manufacturing Processes for Large Solid Rocket Nozzles analysis of Performance Nozzle 9 written by J. J. Warga and published by . This book was released on 1967 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of static test firings conducted to verify the performance of ablative nozzle components fabricated from low-cost material and/or using low-cost manufacturing processes. The throat approach was fabricated from a crocidolite asbestos fabric prepreg; the entrance cap from a codeposited carbon/silica fabric prepreg; the throat inlet from a double-thick carbon fabric prepreg; the throat from a low-cost carbon fabric prepreg; and the exit cone from SNAP cured silica prepreg.
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1967 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Cost Fabrication Techniques for Solid Rocket Nozzles written by and published by . This book was released on 1970 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1966, there has bean a continuing effort to reduce the cost of large, reinforced ablative composite solid rocket nozzles through the use of inexpensive materials and low-cost fabricating techniques. The Aerojet-General Corporation has conducted evaluation programs on behalf of the Air Force and NASA; so has the Thiokol Chemical Corporation. Both the Air Force and NASA have sponsored the development and testing of low-cost materials systems. This paper reviews the processing techniques and the materials that have been evaluated during the past four years; describes the capabilities and limitations; and discusses the means for effecting continued economics. (MM).
Download or read book Study of Production Methods for High Temperature Solid Propellant Motor Nozzles written by T. D. McComas and published by . This book was released on 1974 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The program investigated low-cost fabrication processes to permit the use of advanced materials in nozzles to achieve high performance in a severe motor environment (2000 psi - 20 sec - 100 lb/sec flow). Three materials and manufacturing processes were selected as primary candidates by an initial screening process. Detailed full-scale nozzle designs were developed for each of the candidates. Performance was evaluated in subscale motor firings. A final selection was made and is recommended for demonstration in a full size nozzle test. The sleected material is a carbon-carbon composite, manufactured from a graphite cloth layup (preform) by carbonization and successive resin infiltration/carbonization cycles for densification (> 1.45 gm/cc) and graphitization. A program plan was developed to manufacture and test the nozzle in the specified motor environment. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Manufacturing Processes for Reinforced Plastic Solid Propellant Rocket Nozzles written by Joseph C. Monastra and published by . This book was released on 1965 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large nozzle fabrication process was developed. The process uses a high tension, precisely controlled overwrap to provide the curing pressure ordinarily furnished by means of a hydroclave, autoclave or matched die. The system chosen for development was selected with a major emphasis on maximum mobility. The process requires only the conventional turn table with controlled feed, a simple tensioning device and a heat source for curing. Secondary program events include studies of the effects of density on material performance, tape wrapping experiments, tooling evaluations and the design, fabrication and post-firing evaluation of four subscale nozzles that were produced with the developed technique. During the program, an exit cone for a 120-inch motor nozzle, a complete nozzle for a 156-inch motor and an exit cone for a 260-inch motor nozzle were fabricated by means of the developed process. All were produced at lower total costs than associated with conventional methods, with no sacrifice of reliability, weight or performance. (Author).
Download or read book Research and Technology Program Digest Flash Index written by and published by . This book was released on 1967 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
