00000nam 2200000zi 4500 9.887941 CaOODSP 20221107171838 m o d f cr cn||||||||| 200602s1975 onca ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- Co24-403/1975E-PDF Feasibility study of a general purpose spacecraft bus. Toronto, Ontario : SPAR Aerospace Products Ltd., 1975. 1 online resource (8 volumes) : illustrations text txt rdacontent computer c rdamedia online resource cr rdacarrier "SPAR-R.677." "Reference: Department of Supply and Services contract PL36100-4-2010, serial OPL4-0192." "For Department of Communications." Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Some pages rotated in this copy. Includes bibliographical references. v. 1. Technical report -- v. 1. Technical report : errata addendum -- v. 2. Specifications and responses from vendors -- v. 2. Specifications and responses from vendors : errata addendum -- v. 3. Implementation plan and costs -- v. 3. Implementation plan and costs : errata addendum -- v. 4. Bus performance comparison -- General purpose spacecraft bus : executive summary. "This report, prepared for the Department of Communications (DOC), Ottawa by Spar Aerospace Products Ltd., Toronto, is the result of a feasibility study carried out by Spar under contract to the Department of Supply and Services (DSS), Ottawa, to evaluate the feasibility of designing and fabricating a General Purpose Spacecraft Bus (GPB) capable of carrying five different communications and experimental payloads on a Thor Delta 3914 launch vehicle in the 1979-1985 time frame. The object of a general purpose Bus is to provide a cost effective method of operating satellites that have the same general mission parameters such as orbit and launch vehicle and are of similar weight and power. The Bus, which is the basic "service module", consists of the spacecraft attitude control, power, telemetry and command, propulsion, structure and thermal control subsystems. If a Bus can be designed to cater for different payloads with little design changes needed for each payload, then considerable cost savings can be effected. It has been shown, in this study, that such a bus design is feasible for the five payload options defined by the DOC in their S.O.W., and that a spacecraft with this bus and payload combination can be launched on a 3914 Thor Delta launch vehicle in the period 79-80"--Summary, v. 1, page ii. Issued also in print format. Space vehicles Design and construction. Space vehicles Control systems. Artificial satellites in telecommunication Canada. Véhicules spatiaux Conception et construction. Véhicules spatiaux Systèmes de commande. Satellites artificiels dans les télécommunications Canada. Canada. Department of Communications, issuing body. Spar Aerospace Products Ltd., issuing body. PDF 18.16 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-eng.pdf (v. 1. Technical report) PDF 1.46 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-1-eng.pdf (v. 1. Technical report : errata addendum) PDF 31.09 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-2-eng.pdf (v. 2. Specifications and responses from vendors) PDF 1.32 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-3-eng.pdf (v. 2. Specifications and responses from vendors : errata addendum) PDF 12.97 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-4-eng.pdf (v. 3. Implementation plan and costs) PDF 904 KB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-5-eng.pdf (v. 3. Implementation plan and costs : errata addendum) PDF 8.78 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-6-eng.pdf (v. 4. Bus performance comparison) PDF 2.93 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-403-1975-7-eng.pdf (General purpose spacecraft bus)