{"id":10817,"date":"2016-04-08T22:25:26","date_gmt":"2016-04-09T05:25:26","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=10817"},"modified":"2016-04-08T22:25:26","modified_gmt":"2016-04-09T05:25:26","slug":"where-does-lilium-hide-the-batteries","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/where-does-lilium-hide-the-batteries\/","title":{"rendered":"Where Does Lilium Hide the Batteries?"},"content":{"rendered":"<p><a href=\"http:\/\/lilium-aviation.com\/\">Lilium <\/a>is still in its incubator stage, but drawing a lot of interest for its radical two-seat, high-speed aerial vehicle.<\/p>\n<p><iframe loading=\"lazy\" title=\"ECO15 London: Daniel Wiegand Lilium Aviation\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/htaeARwse1w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><a href=\"http:\/\/www.climate-kic.org\/\">EIT Climate-KIC<\/a>, one of the funding organizations helping underwrite this startup, includes some startling claims in Lilium\u2019s description.<\/p>\n<p>\u201cLilium is designing the world\u2019s fastest and highest-range electric aircraft that is commercially available.<\/p>\n<p>\u201cThe two-seated light aircraft consumes half the energy of today\u2019s most efficient electric cars and is so quiet that it can\u2019t be heard flying in 1\u00a0km (@3,300 feet) altitude. It is propelled by electric impeller engines and features an extensive safety concept comprising a 3-fold redundant fly-by-wire control system, 12 redundant batteries and engines as well as a parachute rescue system for the whole aircraft.\u201d<\/p>\n<div id=\"attachment_10818\" style=\"width: 351px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-10818\" class=\"size-full wp-image-10818\" src=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-two-canards.jpg\" alt=\"Possible early rendering of Lilium shows two canards with 12 ducted fans \" width=\"341\" height=\"218\" srcset=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-two-canards.jpg 341w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-two-canards-300x192.jpg 300w\" sizes=\"auto, (max-width: 341px) 100vw, 341px\" \/><p id=\"caption-attachment-10818\" class=\"wp-caption-text\">Possible early rendering of Lilium shows two canards with 12 ducted fans<\/p><\/div>\n<p><a href=\"http:\/\/www.esa-bic.de\/index.php?anzeige=lilium.html\">The ESA Business Incubation Center<\/a>, another\u00a0of Lilium\u2019s backers, has more: \u201cLilium is developing, building, and selling a two-seated electric jet capable of vertical take-off and landing (VTOL). The company was founded in February 2015 by four engineers and Ph.D students from Technische Universit\u00e4t M\u00fcnchen. Lilium has developed an entirely new aircraft concept for vertical take-off (patent pending) that opens the door to a new class of simpler, safer, quieter, and more enduring VTOL aircraft. It has validated the concept with several scaled prototypes weighing 25 kg, and is now developing its first product: a two-seated ultralight VTOL jet. Lilium has a highly diversified team of experts in fields ranging from aerodynamics, flight control, and CFRP (carbon fiber reinforced plastic) structures to electric propulsion and product design. Together, its members are developing aircraft designed for use in everyday life.\u201d<\/p>\n<p>Promising to combine the weight of a European ultralight aircraft (472 kilograms, or 1,038.4 pounds all-up weight) with vertical takeoff and landing and 450 kilometers per hour (279 mph) top speed with an all-electric range of 500 kilometers (310 miles), Lilium would give Volocopter, Leaptech and Joby Aviation\u2019s S2 runs for their money.<\/p>\n<div id=\"attachment_10819\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-10819\" class=\"size-large wp-image-10819\" src=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-one-canard-528x338.jpg\" alt=\"Another rendering shows one canard retracted with six ducted fans\" width=\"528\" height=\"338\" srcset=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-one-canard-528x338.jpg 528w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-one-canard-300x192.jpg 300w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-one-canard-768x492.jpg 768w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-one-canard.jpg 780w\" sizes=\"auto, (max-width: 528px) 100vw, 528px\" \/><p id=\"caption-attachment-10819\" class=\"wp-caption-text\">Another rendering shows one canard (retracted) with six ducted fans<\/p><\/div>\n<p>Theoretically, it would be safer than conventional airplanes or helicopters, using a triple-redundant control scheme and up to 42 ducted fans for vertical lift and forward thrust. Lilium states, \u201cIts batteries, engines, and controllers are redundant, making the Lilium Jet a much safer concept than conventional helicopters.\u201d<\/p>\n<p>It would be a premium ride, with a side-by-side cockpit, touchscreen, joystick controls, wing doors, capacious luggage space, and automatically folding wings.\u00a0 Last miles getting from the landing site to a final destination would involve folding the wings and driving Lilium as a very compact car.\u00a0 Keeping a minimum of 36 motors, controllers and the necessary batteries within the confines of Lilium\u2019s sleek pod, hauling a 180 kilogram (396 pound) payload and achieving the range target envisioned by Lilium would seem a challenge.<\/p>\n<p>Lilium has more tricks than a Transformer<sup>\u00ae<\/sup> toy, with motors pivoting to provide vertical or horizontal thrust, and popping out on retractable canards as needed.<\/p>\n<div id=\"attachment_10820\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-10820\" class=\"size-large wp-image-10820\" src=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-pod-shape-528x338.jpg\" alt=\"Lilium has highly aerodynamic shape, but raises question as to how everything fits inside compact pod\" width=\"528\" height=\"338\" srcset=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-pod-shape-528x338.jpg 528w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-pod-shape-300x192.jpg 300w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-pod-shape-768x492.jpg 768w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2016\/04\/lilium-pod-shape.jpg 780w\" sizes=\"auto, (max-width: 528px) 100vw, 528px\" \/><p id=\"caption-attachment-10820\" class=\"wp-caption-text\">Lilium has highly aerodynamic shape, but raises question as to how everything fits inside compact pod<\/p><\/div>\n<p>The aircraft\u2019s projected 320 kilowatt (435 horsepower) output could be handled by even existing powerplants such as the Flytec HP-10, but its weight, for example, would make achieving payload goals difficult.\u00a0 At 3.75 kilograms (8.25 pounds) per motor, even 36 would total 297 pounds \u2013 a substantial portion of the craft\u2019s maximum all-up weight.\u00a0\u00a0 The video shows a different type of motor, which including fan and controller would have to be much lighter.\u00a0 36 motors would have to put out 8.88 kilowatts each for the total, and 42 (shown in some concept renderings) would have to produce 7.6 kW each.<\/p>\n<p>Batteries capable of lifting over 1,000 pounds and pushing the airplane at projected speeds, even for the 1.2 hours required to fly 300 miles at 250 mph would have to be superior to those available today.\u00a0 Subtracting the payload from the all-up weight leaves only 642 pounds for aircraft structure, motors, batteries, and all the systems necessary for the transformations which Lilium undergoes on its journey.\u00a0 Color this editor respectfully skeptical, but hopeful for advances in motors and energy storage.<\/p>\n<p>We get basic details and illustrations on Ilium\u2019s web site, and even more detail from Daniel Wiegand, Lilium\u2019s CEO, in his presentation at London\u2019s 2015 Eco Summit.<\/p>\n<div id=\"facebook_like\"><iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fcafe.foundation%2Fblog%2Fwhere-does-lilium-hide-the-batteries%2F&amp;layout=standard&amp;show_faces=true&amp;width=500&amp;action=like&amp;font=segoe+ui&amp;colorscheme=light&amp;height=80\" scrolling=\"no\" frameborder=\"0\" style=\"border:none; overflow:hidden; width:500px; height:80px;\" allowTransparency=\"true\"><\/iframe><\/div>","protected":false},"excerpt":{"rendered":"<p>Lilium is still in its incubator stage, but drawing a lot of interest for its radical two-seat, high-speed aerial vehicle. EIT Climate-KIC, one of the funding organizations helping underwrite this startup, includes some startling claims in Lilium\u2019s description. \u201cLilium is designing the world\u2019s fastest and highest-range electric aircraft that is commercially available. \u201cThe two-seated light [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[6862,6680,15,14],"tags":[7177,7170,7172,7176,7171,7175,7174,7173,6239],"class_list":["post-10817","post","type-post","status-publish","format-standard","category-batteries","category-electric-aircraft-components","category-electric_powerplants","category-sustainable_ga","tag-2015-eco-summit","tag-daniel-wiegand","tag-eit-climate-kic","tag-flytec-hp-10-motor","tag-lilium-aviation","tag-technische-universitat-munchen","tag-the-esa-business-incubation-center","tag-transformer-toy","tag-vtol-flight"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Where Does Lilium Hide the Batteries? - CAFE Foundation Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/cafe.foundation\/blog\/where-does-lilium-hide-the-batteries\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Where Does Lilium Hide the Batteries? - CAFE Foundation Blog\" \/>\n<meta property=\"og:description\" content=\"Lilium is still in its incubator stage, but drawing a lot of interest for its radical two-seat, high-speed aerial vehicle. 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