{"id":523,"date":"2012-01-01T16:39:32","date_gmt":"2012-01-01T15:39:32","guid":{"rendered":"https:\/\/people.unipi.it\/vittorio_cipolla\/?p=523"},"modified":"2021-11-25T16:42:07","modified_gmt":"2021-11-25T15:42:07","slug":"2-papers-presented-at-the-variational-analysis-and-aerospace-engineering-workshop-erice-sept-2010","status":"publish","type":"post","link":"https:\/\/people.unipi.it\/vittorio_cipolla\/2-papers-presented-at-the-variational-analysis-and-aerospace-engineering-workshop-erice-sept-2010\/","title":{"rendered":"2 papers presented at the &#8220;Variational Analysis and Aerospace Engineering&#8221; Workshop (Erice, Sept. 2010)"},"content":{"rendered":"\r\n\r\n\r\n<h3 class=\"ChapterTitle\">The PrandtlPlane Configuration: Overview on Possible Applications to Civil Aviation<\/h3>\r\n<p class=\"wp-block-paragraph\">The term PrandtlPlane indicates an aircraft configuration based on a box-like lifting system in the front view. The PrandtlPlane configuration allows one to conceive many different aircraft for both passenger and freighter aviation, ranging from small Unmanned Aerial Vehicles (UAVs) to very large civil aircraft, much larger than the present largest ones; different engine and propulsion systems became possible in view of the so-called \u201cgreen aviation\u201d of the future.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Share and Cite<\/h4>\r\n<p>Frediani A., Cipolla V., Rizzo E.\u00a0 The PrandtlPlane Configuration: Overview on Possible Applications to Civil Aviation. In: Buttazzo G., Frediani A. (eds) Variational Analysis and Aerospace Engineering: Mathematical Challenges for Aerospace Design. Springer Optimization and Its Applications, vol 66. Springer, Boston, MA. (2012)<\/p>\r\n\r\n\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Full-text here: <a href=\"https:\/\/doi.org\/10.1007\/978-1-4614-2435-2_8\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1007\/978-1-4614-2435-2_8<\/a><\/p>\r\n<p>&nbsp;<\/p>\r\n<h3 class=\"ChapterTitle\">Design of Solar Powered Unmanned Biplanes for HALE Missions<\/h3>\r\n<p>Some of the results of a research about the design of solar powered Unmanned Aerial Vehicles (UAVs) to be used in High Altitude Long Endurance (HALE) missions are given. The proposed airframe architecture has a biplane layout, conceived to face the most significant challenge for this kind of aircraft: to fly at high altitude, under wintertime conditions and for a wide range of latitude angles. The Solar Powered Biplane (SPB) concept is presented as well as the related design procedure, which can be used to define UAVs for different purposes and mission conditions, such as loiter altitude, latitude and year\u2019s day. A presentation of the design method is given, providing details about models for Aerodynamics, Flight Mechanics, energy balance evaluation, structural analysis and propulsion system sizing. As a particular result of this research, an SPB configuration capable to meet some of the requirements indicated by the US Defense Advanced Research Projects Agency (DARPA) as goals of the HALE flight, is illustrated. Such aircraft, which can operate in each year\u2019s day, at latitudes up to 45\u00b0 and altitudes up to 18\u2009000 m, is described in details, and a flexibility analysis for different mission conditions is carried out.<\/p>\r\n<p>\r\n\r\n<\/p>\r\n<h4 class=\"wp-block-heading\">Share and Cite<\/h4>\r\n<p>Cipolla V., Frediani A.\u00a0 Design of Solar Powered Unmanned Biplanes for HALE Missions. In: Buttazzo G., Frediani A. (eds) Variational Analysis and Aerospace Engineering: Mathematical Challenges for Aerospace Design. Springer Optimization and Its Applications, vol 66. Springer, Boston, MA.(2012)<\/p>\r\n<p>\r\n\r\n\r\n\r\n<\/p>\r\n<p class=\"wp-block-paragraph\">Full-text here: <a href=\"https:\/\/doi.org\/10.1007\/978-1-4614-2435-2_7\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1007\/978-1-4614-2435-2_7<\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>The PrandtlPlane Configuration: Overview on Possible Applications to Civil Aviation The term PrandtlPlane indicates an aircraft configuration based on a box-like lifting system in the front view. The PrandtlPlane configuration allows one to conceive many different aircraft for both passenger and freighter aviation, ranging from small Unmanned Aerial Vehicles (UAVs) to very large civil aircraft, [&hellip;]<\/p>\n","protected":false},"author":636,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4,11],"tags":[18,19,25,27,29,33,42],"class_list":["post-523","post","type-post","status-publish","format-standard","hentry","category-conferences","category-publications","tag-aircraft-design","tag-box-wing","tag-hybrid-electric","tag-innovation","tag-prandtlplane","tag-research","tag-unmanned"],"acf":[],"featured_image_src":null,"author_info":{"display_name":"Cipolla V.","author_link":"https:\/\/people.unipi.it\/vittorio_cipolla\/author\/a013084\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2 papers presented at the &quot;Variational Analysis and Aerospace Engineering&quot; Workshop (Erice, Sept. 2010) - Vittorio Cipolla<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/people.unipi.it\/vittorio_cipolla\/2-papers-presented-at-the-variational-analysis-and-aerospace-engineering-workshop-erice-sept-2010\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2 papers presented at the &quot;Variational Analysis and Aerospace Engineering&quot; Workshop (Erice, Sept. 2010) - Vittorio Cipolla\" \/>\n<meta property=\"og:description\" content=\"The PrandtlPlane Configuration: Overview on Possible Applications to Civil Aviation The term PrandtlPlane indicates an aircraft configuration based on a box-like lifting system in the front view. The PrandtlPlane configuration allows one to conceive many different aircraft for both passenger and freighter aviation, ranging from small Unmanned Aerial Vehicles (UAVs) to very large civil aircraft, [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/people.unipi.it\/vittorio_cipolla\/2-papers-presented-at-the-variational-analysis-and-aerospace-engineering-workshop-erice-sept-2010\/\" \/>\n<meta property=\"og:site_name\" content=\"Vittorio Cipolla\" \/>\n<meta property=\"article:published_time\" content=\"2012-01-01T15:39:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-11-25T15:42:07+00:00\" \/>\n<meta name=\"author\" content=\"Cipolla V.\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Cipolla V.\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/people.unipi.it\\\/vittorio_cipolla\\\/2-papers-presented-at-the-variational-analysis-and-aerospace-engineering-workshop-erice-sept-2010\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/people.unipi.it\\\/vittorio_cipolla\\\/2-papers-presented-at-the-variational-analysis-and-aerospace-engineering-workshop-erice-sept-2010\\\/\"},\"author\":{\"name\":\"Cipolla V.\",\"@id\":\"https:\\\/\\\/people.unipi.it\\\/vittorio_cipolla\\\/#\\\/schema\\\/person\\\/ea3f46a21248a6b50ef27bc143bce6f4\"},\"headline\":\"2 papers presented at the &#8220;Variational Analysis and Aerospace Engineering&#8221; 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