{"id":9204,"date":"2014-08-21T09:51:40","date_gmt":"2014-08-21T16:51:40","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=9204"},"modified":"2014-08-21T09:57:45","modified_gmt":"2014-08-21T16:57:45","slug":"aeac-debuts-sun-flyer-airventure-2014","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/aeac-debuts-sun-flyer-airventure-2014\/","title":{"rendered":"AEAC Debuts Sun Flyer at AirVenture 2014"},"content":{"rendered":"<p><span style=\"line-height: 1.5em;\">Calin Cologan and George Bye staged a joint press event on the Sunday evening before AirVenture started. \u00a0Held in the <a href=\"http:\/\/www.redbirdflightsimulations.com\/\">Redbird Tent<\/a>\u00a0on Wittman Field,\u00a0it drew hundreds who saw the Redbird flight simulators and a Diesel-powered Cessna, but were stopped short by the yellow and blue Sun Flyer, a single-seat proof-of-concept version of what will soon be a two-seat battery\/solar training aircraft.<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"E1 1st Flt\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/C9lWHttNPLA?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>Forming a new firm based on the strengths of PC-Aero in Germany, and Bye Aerospace and Redbird Flight Simulators in America, they promise an electric training aircraft for the near future.\u00a0 Unlike the tandem two-seaters PC-Aero is developing in Germany, American Electric Aircraft Corporation will produce\u00a0<a href=\"http:\/\/www.aeac.aero\/\">a side-by-side craft<\/a>, often preferred for communication between instructor and student.<\/p>\n<p><span style=\"line-height: 1.5em;\">In this Da Vinci Institute presentation, George Bye discusses the keys to performance for his aircraft, which include clean aerodynamics, high efficiency, a light carbon structure, and solar energy.\u00a0 Nest will come a \u201cbig performance step \u2013 endurance\u201d \u2013 and possible perpetual flight like that demonstrated by the much bigger, less practical Solar Impulse and being approached by Eric Raymond\u2019s Solar-Flight Duo.<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Aviation&#039;s Next Quantum Leap: Solar Powered Aircraft - DaVinci Institute\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/JgpPtz5ewVo?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>Part of AEAC\u2019s strategy is to use proven off-the- shelf components, advanced technology, miniaturization, and emerging aerospace design to bring a complete, modern machine onto the training scene.\u00a0 The strategy will bring flexible, innovative, and scalable design and manufacturing techniques to the fore, enabled by an experienced team with years of aerospace expertise.<\/p>\n<p><b>Stealth is Good for Civilian Aircraft, Too<\/b><\/p>\n<p><b><\/b>Sun Flyer, as with other electric aircraft, has several aspects that make it commercially-viable for training or unmanned use, including a low heat signature that comes from the lack of \u00a0hot exhaust.\u00a0 Large, wide propeller blades turn slowly, giving half the acoustic signature of conventional small General Aviation aircraft.\u00a0 The unobtrusive nature of the airplane allows the unmanned version to stay, listen, and watch \u2013 highly attractive to the Defense Department.<\/p>\n<div id=\"attachment_9209\" style=\"width: 507px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/stratoairnet_solar-electric_uav.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-9209\" class=\"size-full wp-image-9209\" alt=\"StratoAirNet UAV with potential military and civilian uses\" src=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/stratoairnet_solar-electric_uav.png\" width=\"497\" height=\"230\" srcset=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/stratoairnet_solar-electric_uav.png 497w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/stratoairnet_solar-electric_uav-300x138.png 300w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/a><p id=\"caption-attachment-9209\" class=\"wp-caption-text\">StratoAirNet UAV with potential military and civilian uses<\/p><\/div>\n<p>This leads to a concept developed by Bye and Gologan, <a href=\"http:\/\/www.byeaerospace.com\/programs.aspx\">StratoAirNet<\/a>, a persistent network of medium-to-high altitude aircraft that can provide applications in \u201ccommunications, border patrol and homeland security, maritime search and rescue, visual and thermal reconnaissance and forward air control. Potential civil applications include traffic control, pipeline and power line inspection, aerial law enforcement, wildlife and natural resource monitoring, forest fire detection, weather monitoring and aerial photography.\u201d<\/p>\n<p>Characteristics that allow low-cost surveillance equate to reasonable operational costs for flight schools.\u00a0 Part of that is the low empty weight of the concept airplane, 150 kilograms (331 pounds), with batteries adding 80 kilograms or 176 pounds to that.\u00a0 In the surveillance version, this allows a payload of 150 pounds.\u00a0 For the trainer, LSA-type numbers will prevail, with an empty weight of 280 kilograms (616 pounds) empty weight including batteries, a payload of 200 kilograms (440 pounds), and a flying weight of 600 kilograms (1,320 pounds).\u00a0 The poster at the Redwing tent showed a power output from the Eck\/Geiger HPD-25 motor of 26 kilowatts (34.8 horsepower) continuous and 30 kW (40.2 hp.) peak power for a limited time.<\/p>\n<div id=\"attachment_9205\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/Sunflyer-sharri-3.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-9205\" class=\"size-large wp-image-9205\" alt=\"Shari Rossi, a member of the AEAC Board of Directors, shows a light touch on the Sun Flyer\" src=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/Sunflyer-sharri-3-528x395.jpg\" width=\"528\" height=\"395\" srcset=\"http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/Sunflyer-sharri-3-528x395.jpg 528w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/Sunflyer-sharri-3-300x224.jpg 300w, http:\/\/cafe.foundation\/blog\/wp-content\/uploads\/2014\/08\/Sunflyer-sharri-3.jpg 1095w\" sizes=\"auto, (max-width: 528px) 100vw, 528px\" \/><\/a><p id=\"caption-attachment-9205\" class=\"wp-caption-text\">Shari Rossi, a member of the AEAC Board of Directors, shows a light touch on the Sun Flyer<\/p><\/div>\n<p>The <a href=\"http:\/\/www.geigerengineering.de\/avionik-elektroantriebssystem\/neuentwicklungen\/\">nine-kilogram (20-pound) motors <\/a>give twin-motor safety with single-motor operation.\u00a0 Dual controllers add about two pounds to the power system.\u00a0 Two throttles can be individually operated, or combined to use the full power of both motors for takeoff or climb.\u00a0 Since the clean, light airframe requires only six kilowatts (8 hp.) to maintain level flight at 50 knots (57.5 mph), the airplane should be able to stay aloft for over three hours on its 18 kilowatt-hour battery pack at that speed.\u00a0 At full throttle(s) it can climb 700 feet per minute.\u00a0 Of course, normal training regimens will include tough-and-goes, maneuvers, and higher-speed operations that will reduce that best-glide-speed type endurance.\u00a0 Some indicators show a 52-kW (70-horsepower) version of the dual motor may be available, which would certainly enhance climb performance.<\/p>\n<p>To augment that, the airplane has Solar World thin-film photovoltaic cells that can add a maximum of \u00a0\u00a0up to 1.3 kW of energy.\u00a0 These cells add minimal weight for their 7 square meters (75.3 square feet) of conservatively-calculated area.\u00a0 According to Calin Gologan, \u201cThe cells weigh about 0.5 kilogram (1.1 pounds) per square meter, the layers 0.2 kg (0.44 pounds).\u201d\u00a0 Wiring adds about 0.1 kg (0.22 pounds).\u00a0 This totals about 0.8 kilograms (1.76 pounds) per square meter, or about 0.16 pounds per square foot.\u00a0 The seven square meters of solar cells thus add about 12.3 pounds to the aircraft\u2019s weight.\u00a0 Since they are 22-percent efficient, Calin calculates them as providing 220 Watts per square meter, or a maximum of 1.54 kW, about 20-percent of the energy required for low cruise. Calculations for endurance are based on the currently installed batteries and their 250 Watt-hour per kilogram performance.\u00a0 AEAC anticipates having 400 Watt-hour per kilogram batteries soon.<\/p>\n<p>The cells cost about 350 euros ($465) per square meter, two layers of thin glass laminations which form a flexible and protective matrix cost about 660 euros per square meter, and this totals about $1,000 euros ($1,330) per square meter ($124 per square foot). The solar cells add 7,000 Euros ($9,310) to the cost of the airplane, but allow free recharging of the batteries as the airplane is parked, and add to the endurance and range in the air.<\/p>\n<p><iframe loading=\"lazy\" title=\"Sun Flyer Electric Trainer\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/DkJUlNYtAvk?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><span style=\"line-height: 1.5em;\">Note that Charlie Johnson estimates a price for the two-seat trainer at under $180,000, certainly not out of touch with the market or out of line with other LSA-type aircraft.\u00a0 AEAC has a truly disruptive card up its sleeve, though \u2013 an operating cost of $10 per hour, including an hourly allowance for battery replacement. \u00a0\u00a0Calin, George and Charlie all hope this will lead to a resurgence in flight training and a rebirth of the General Aviation market.\u00a0 Coupled with new aircraft promised from Airbus and rising interest in electric ultralights, we may soon witness a quiet buzz at our local flying fields.<\/span><\/p>\n<p>&nbsp;<\/p>\n<div id=\"facebook_like\"><iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fcafe.foundation%2Fblog%2Faeac-debuts-sun-flyer-airventure-2014%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>Calin Cologan and George Bye staged a joint press event on the Sunday evening before AirVenture started. \u00a0Held in the Redbird Tent\u00a0on Wittman Field,\u00a0it drew hundreds who saw the Redbird flight simulators and a Diesel-powered Cessna, but were stopped short by the yellow and blue Sun Flyer, a single-seat proof-of-concept version of what will soon [&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":[16,15,14],"tags":[5209,5333,2670,323,594,5335,5339,253,419,3647,5334,5337,1467,5336,5076,5338],"class_list":["post-9204","post","type-post","status-publish","format-standard","category-diesel_powerplants","category-electric_powerplants","category-sustainable_ga","tag-airventure-2014","tag-american-electric-aircraft-corporation","tag-bye-aerospace","tag-calin-gologan","tag-charlie-johnson","tag-davinci-institute","tag-flight-training","tag-george-bye","tag-light-sport-aircraft","tag-pc-aero-gmbh","tag-redbird-flight-simulators","tag-shari-rossi","tag-solar-world","tag-stratoairnet","tag-sun-flyer","tag-thin-film-photovoltaics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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