{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/74106"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/74106","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Flight test of a supersonic decelerator on Earth to simulate a Mars entry","abstract":"A systems analysis is presented for simulation of the descent of a decelerator (parachute) and spacecraft for entry through the atmosphere of the planet Mars by a flight test in the Earth's atmosphere. Engineering atmosphere models for Mars are defined and based on these models requirements for parachutes to be used for Mars entry are developed. Appropriate parachute model and scaling laws for Earth simulation of Mars performance are developed. A disk-gap-band parachute was selected for a flight test on Earth to simulate a mission profile of a decelerator for a planetary mission to Mars. The parachute is sized for a defined mission profile and accepted empirical methods are used to perform the design analysis of the parachute. A description of the flight test spacecraft system and the performance of the parachute during the full scale flight test is presented. The parachute sustained considerable damage during the test. The results of the Earth flight test are used to discuss predicted performance for an identically damaged parachute on Mars.","abstract_html":"A systems analysis is presented for simulation of the descent of a decelerator (parachute) and spacecraft for entry through the atmosphere of the planet Mars by a flight test in the Earth's atmosphere. Engineering atmosphere models for Mars are defined and based on these models requirements for parachutes to be used for Mars entry are developed. Appropriate parachute model and scaling laws for Earth simulation of Mars performance are developed. A disk-gap-band parachute was selected for a flight test on Earth to simulate a mission profile of a decelerator for a planetary mission to Mars. The parachute is sized for a defined mission profile and accepted empirical methods are used to perform the design analysis of the parachute. A description of the flight test spacecraft system and the performance of the parachute during the full scale flight test is presented. The parachute sustained considerable damage during the test. The results of the Earth flight test are used to discuss predicted performance for an identically damaged parachute on Mars.","abstract_has_math":false,"creators":["Branscome, Darrell R."],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Mechanical Engineering","degree_department":"Mechanical Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1973,"date_issued":"1973","date_published":"1973","updated_at":"2026-07-22T22:19:57Z","subjects":[],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/74106","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Mechanical Engineering"]},{"key":"dc:creator","label":"Author","values":["Branscome, Darrell R."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-01-10T20:34:56Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2017-01-10T20:34:56Z"]},{"key":"dc:date.issued","label":"Date","values":["1973"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/74106"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A systems analysis is presented for simulation of the descent of a decelerator (parachute) and spacecraft for entry through the atmosphere of the planet Mars by a flight test in the Earth's atmosphere. Engineering atmosphere models for Mars are defined and based on these models requirements for parachutes to be used for Mars entry are developed. Appropriate parachute model and scaling laws for Earth simulation of Mars performance are developed. A disk-gap-band parachute was selected for a flight test on Earth to simulate a mission profile of a decelerator for a planetary mission to Mars. The parachute is sized for a defined mission profile and accepted empirical methods are used to perform the design analysis of the parachute. A description of the flight test spacecraft system and the performance of the parachute during the full scale flight test is presented. The parachute sustained considerable damage during the test. The results of the Earth flight test are used to discuss predicted performance for an identically damaged parachute on Mars."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Flight test of a supersonic decelerator on Earth to simulate a Mars entry"]}]}],"canonical_facts":{"dc:contributor.department":["Mechanical Engineering"],"dc:creator":["Branscome, Darrell R."],"dc:date.accessioned":["2017-01-10T20:34:56Z"],"dc:date.available":["2017-01-10T20:34:56Z"],"dc:date.issued":["1973"],"dc:description.abstract":["A systems analysis is presented for simulation of the descent of a decelerator (parachute) and spacecraft for entry through the atmosphere of the planet Mars by a flight test in the Earth's atmosphere. Engineering atmosphere models for Mars are defined and based on these models requirements for parachutes to be used for Mars entry are developed. Appropriate parachute model and scaling laws for Earth simulation of Mars performance are developed. A disk-gap-band parachute was selected for a flight test on Earth to simulate a mission profile of a decelerator for a planetary mission to Mars. The parachute is sized for a defined mission profile and accepted empirical methods are used to perform the design analysis of the parachute. A description of the flight test spacecraft system and the performance of the parachute during the full scale flight test is presented. The parachute sustained considerable damage during the test. 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