{"title":"A Reaction Drive Powered by External Dynamic Pressure","authors":"J. Greason","doi":"10.59332/jbis-072-05-0146","DOIUrl":null,"url":null,"abstract":"A new class of reaction drive is discussed, in which reaction mass is expelled from a vehicle using power extracted from the relative motion of the vehicle and the surrounding medium, such as the solar wind. The physics of this type of drive are reviewed and shown to permit high velocity changes with modest mass ratio while conserving energy and momentum according to well-established physical principles. A comparison to past propulsion methods and propulsion classification studies suggests new mission possibilities for this type of drive. An example of how this principle might be embodied in hardware suggests accelerations sufficient for outer solar system missions, with shorter trip times and lower mass ratios than chemical rockets. Keywords: Propulsion, Reaction drive, Solar wind, External power, Dynamic pressure","PeriodicalId":54906,"journal":{"name":"Jbis-Journal of the British Interplanetary Society","volume":"363 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Jbis-Journal of the British Interplanetary Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.59332/jbis-072-05-0146","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 2
Abstract
A new class of reaction drive is discussed, in which reaction mass is expelled from a vehicle using power extracted from the relative motion of the vehicle and the surrounding medium, such as the solar wind. The physics of this type of drive are reviewed and shown to permit high velocity changes with modest mass ratio while conserving energy and momentum according to well-established physical principles. A comparison to past propulsion methods and propulsion classification studies suggests new mission possibilities for this type of drive. An example of how this principle might be embodied in hardware suggests accelerations sufficient for outer solar system missions, with shorter trip times and lower mass ratios than chemical rockets. Keywords: Propulsion, Reaction drive, Solar wind, External power, Dynamic pressure
期刊介绍：
The Journal of the British Interplanetary Society (JBIS) is a technical scientific journal, first published in 1934. JBIS is concerned with space science and space technology. The journal is edited and published monthly in the United Kingdom by the British Interplanetary Society.
Although the journal maintains high standards of rigorous peer review, the same with other journals in astronautics, it stands out as a journal willing to allow measured speculation on topics deemed to be at the frontiers of our knowledge in science. The boldness of journal in this respect, marks it out as containing often speculative but visionary papers on the subject of astronautics.
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