<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.2d1 20170631//EN" "JATS-journalpublishing1.dtd"> <ArticleSet> <Article> <Journal> <PublisherName>ijesm</PublisherName> <JournalTitle>International Journal of Engineering, Science and</JournalTitle> <PISSN>I</PISSN> <EISSN>S</EISSN> <Volume-Issue>Volume 3, Issue 4 </Volume-Issue> <PartNumber/> <IssueTopic>Multidisciplinary</IssueTopic> <IssueLanguage>English</IssueLanguage> <Season>December 2014</Season> <SpecialIssue>N</SpecialIssue> <SupplementaryIssue>N</SupplementaryIssue> <IssueOA>Y</IssueOA> <PubDate> <Year>2014</Year> <Month>12</Month> <Day>1</Day> </PubDate> <ArticleType>Engineering, Science and Mathematics</ArticleType> <ArticleTitle>USING THE H-AIRFRAME PARADIGM FOR CONSTRUCTING SEPTA-ROTOR UNMANNED HELICOPTERS</ArticleTitle> <SubTitle/> <ArticleLanguage>English</ArticleLanguage> <ArticleOA>Y</ArticleOA> <FirstPage>76</FirstPage> <LastPage>85</LastPage> <AuthorList> <Author> <FirstName>USING THE H-AIRFRAME PARADIGM FOR CONSTRUCTING SEPTA-ROTOR UNMANNED</FirstName> <LastName>HELICOPTERS</LastName> <AuthorLanguage>English</AuthorLanguage> <Affiliation/> <CorrespondingAuthor>N</CorrespondingAuthor> <ORCID/> </Author> </AuthorList> <DOI/> <Abstract>Using multi-rotor unmanned helicopters for various purposes becomes a practice in the recent years, due to the increased efficiency of electrical motors and batteries and at the same time their lowering cost. Multi-rotors are applicable in a number of situations, from pollution monitoring and disaster management to scientific research. Starting from tri-copters and quad-copters users are more and more demanding multi-rotors with larger number of propellers aiming at lower risk, higher efficiency, larger payloads, etc. Among those helicopters are machines with five, six, seven, eight or even a larger number of propellers.</Abstract> <AbstractLanguage>English</AbstractLanguage> <Keywords>Unmanned multi-rotor helicopter, Multi-rotor helicopter airframe, Quad-rotor helicopter, Septa-rotor helicopter</Keywords> <URLs> <Abstract>https://ijesm.co.in/ubijournal-v1copy/journals/abstract.php?article_id=3003&title=USING THE H-AIRFRAME PARADIGM FOR CONSTRUCTING SEPTA-ROTOR UNMANNED HELICOPTERS</Abstract> </URLs> <References> <ReferencesarticleTitle>References</ReferencesarticleTitle> <ReferencesfirstPage>16</ReferencesfirstPage> <ReferenceslastPage>19</ReferenceslastPage> <References/> </References> </Journal> </Article> </ArticleSet>