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Centennial 1922–2022: First Transoceanic Flight with Autonomous Aerial Navigation

2021-12-29Journal article Embargoed access
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dc.contributor.authorNeves, Fernando M. S. P.
dc.contributor.authorBarata, Jorge M M
dc.contributor.authorSilva, André
dc.date.accessioned2022-04-04T10:02:35Z
dc.date.embargo2060-12-29
dc.date.issued2021-12-29
dc.description.abstractAlthough the Transoceanic Flights had already piqued the state's attention, the airplane's lack of aerial navigation equipment rendered it unsuitable for this new trend in 1919. Three years later, in 1922, Sacadura Cabral and Gago Coutinho conducted a Transoceanic Flight to demonstrate the autonomy and usefulness of the Sextant with an artificial horizon, in combination with novel air navigation instruments, all handled by a simplified short air navigation method. Unfortunately, due to errors induced by the vertical dynamics associated with the aircraft's speed, the sextant was constantly adjusted to the sea horizon rather than the perfect readings of the artificial horizon. This condition required a search for a suitably clear horizon line, forcing the seaplane's altitude to be often lowered. Furthermore, a few supplementary navigation devices risked their initial autonomous air navigation. Nonetheless, by measuring the size of the wingspan shadow reflected on the ocean's surface, the pilots managed to adjust their expertise to maintain the seaplane on the planned trajectory. Furthermore, this novel and reliable steering method allowed them to perform trigonometric calculations to estimate their height, which was critical in calculating the aircraft's positioning. Thus, the Journey was recognized as a significant milestone in aviation history, ushering the use of the sextant as a key means of air navigation and proving the effectiveness of a revolutionary principle of Coutinho's short methods, never before documented on Astronavigation. Along with the First Transoceanic Flight with Autonomous Aerial Navigation, one of the itineraries featured an 11 ½ hour crossing the Atlantic from Cape Verde to St. Peter and St. Paul Rocks. When it is remembered that they managed to reach this remote and a pretty small destination (a few hundred ft long and the highest point 60 ft above the water) after a flight of nearly 900 nautical miles over the Ocean, it exalts the remarkable feat of the airmen.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFernando P. Neves, Jorge M. M. Barata, André R R Silva Centennial 1922–2022: First Transoceanic Flight with Autonomous Aerial Navigation AIAA SciTech 2022 Forum and Exposition, Evento Hibrido, San Diego, CA, EUA, 3-7 janeiro, 2022pt_PT
dc.identifier.doi10.2514/6.2022-0778pt_PT
dc.identifier.issn978-162410631-6
dc.identifier.urihttp://hdl.handle.net/10400.6/12156
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Institute of Aeronautics and Astronautics Incpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relation.publisherversionhttps://arc.aiaa.org/doi/10.2514/6.2022-0778pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAir Navigation Systempt_PT
dc.subjectCommercial Aircraftpt_PT
dc.subjectAviation Pioneerspt_PT
dc.subjectCelestial Navigationpt_PT
dc.subjectNavigation Instrumentspt_PT
dc.subjectTransatlantic Flightpt_PT
dc.subjectCrew Memberpt_PT
dc.subjectFixed Wing Aircraftpt_PT
dc.titleCentennial 1922–2022: First Transoceanic Flight with Autonomous Aerial Navigationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.citation.conferencePlaceSan Diego, CA & Virtualpt_PT
oaire.citation.titleAIAA SCITECH 2022 Forumpt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSilva Pereira das Neves
person.familyNameMartins Barata
person.familyNameResende Rodrigues da Silva
person.givenNameFernando Manuel da
person.givenNameJorge Manuel
person.givenNameAndré
person.identifierhFY_5JYAAAAJ&hl
person.identifierJ-4185-2012
person.identifier.ciencia-idBC15-D534-3DCC
person.identifier.ciencia-idF611-BBCC-DAA8
person.identifier.ciencia-id8219-4B2B-E1C7
person.identifier.orcid0000-0002-5826-7459
person.identifier.orcid0000-0001-9014-5008
person.identifier.orcid0000-0002-4901-7140
person.identifier.scopus-author-id11439470600
person.identifier.scopus-author-id11440407500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctAmerican Institute of Aeronautics and Astronautics Inc.. All rights reserved.pt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
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