{"id":14008,"date":"2021-04-18T23:31:16","date_gmt":"2021-04-19T06:31:16","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=14008"},"modified":"2021-04-18T23:31:16","modified_gmt":"2021-04-19T06:31:16","slug":"elektra-trainer-flight-training-for-the-new-age","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/elektra-trainer-flight-training-for-the-new-age\/","title":{"rendered":"Elektra Trainer \u2013 Flight Training for the New Age"},"content":{"rendered":"<h4><strong>A Decade of Development<\/strong><\/h4>\n<p>A modified version of Elektra One, flying since 2011 and certified in the German ultralight\u00a0 class, Calin Gologan\u2019s Elektra Trainer could provide affordable flight training with lower operating costs.\u00a0 Calin displayed Elektra One at the 2012 AirVenture show in Oshkosh, Wisconsin, flying daily on the power of its solar-charged batteries.<\/p>\n<div id=\"attachment_16315\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2021\/04\/Elektra-Trainer.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16315\" class=\"size-large wp-image-16315\" src=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2021\/04\/Elektra-Trainer-528x346.png\" alt=\"\" width=\"528\" height=\"346\" \/><\/a><p id=\"caption-attachment-16315\" class=\"wp-caption-text\">Elektra Trainer in retractable gear version<\/p><\/div>\n<p>The company details its background.\u00a0 \u201d<a href=\"https:\/\/www.elektra-solar.com\/\"> Elektra Solar GmbH<\/a> is a spin-off from the German Aerospace Center (DLR), Institute for Robotics and Mechatronics. \u00a0The roots of the company go back to 2011. This year PC-Aero GmbH was founded in 2011 by Calin Gologan. \u00a0Elektra One electric aircraft was the first product flying in March 2011.<\/p>\n<p>\u201cIn the same year, we [received] the Lindbergh Prize for Electric Aircraft Vision. Elektra UAS GmbH was founded in 2012 for unmanned systems and application. Both companies merged in 2016 under the new name Elektra Solar GmbH.<\/p>\n<p>&#8220;In 2015 we flew with the Elektra One Solar for the first time over the Alps. The first flight of the larger Elektra Two Solar took place in 2017. In 2019 we flew with the Elektra Two Solar UAS (unmanned version) up to 10 km (32,800 feet) altitude completely autonomously, including start and touch down. Our aircraft systems for control and operation were already used for many hundreds of flight hours as UAS (Unmanned Aerial Systems) or OPS (Optionally-Piloted Systems).\u201d<\/p>\n<p><iframe loading=\"lazy\" title=\"Elektra Solar GmbH Video\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/BMUL5TWPd84?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>Elektra Trainer has a wider and longer fuselage than Elektra One, with reinforced, 13.5-meter (44.3-foot) wings.\u00a0 These enable a glide ratio of about 28:1 and a cruise speed of 120 kilometers per hour (74.5 mph).\u00a0 A 14.5-meter (47.5-feet) span version is available. \u00a0The Trainer can stay aloft on only 11 kilowatts (14.75 horsepower), less than a third of its Eck-Geiger HPD-40\u2019s rated power, and only a fifth of its short-duration maximum output of 60 kW (80.5 hp).\u00a0 A 35 kilowatt-hour battery ensures at least two hours in flight with a healthy reserve. \u00a0An 18 kW charger can \u201ctop off\u201d the battery in under two hours, giving the airplane a high usability factor.\u00a0 With a normal training flight of 50 minutes and training cycle of 35 minutes, the Trainer can accommodate two training flight before required charging.<\/p>\n<h4><strong>A Thoroughly Modern Trainer<\/strong><\/h4>\n<p>Calin is a master at lightweight structures, his Elektra One having parsed its 300 kilograms (660 pounds) into roughly 100 kilos for structure, including landing gear, motor and controller, 100 kilos for batteries (remember these were a decade-old technology) and 100 kilos for payload.<\/p>\n<p>Elektra Trainer may be even more of a svelte creation, its empty weight of 400 kg (881.85 pounds) including the complete power system \u2013 batteries and all.\u00a0 It stays within ultralight rules (Light Sport Aircraft in America) with a maximum takeoff weight of 600 kg (1322.8 pounds).<\/p>\n<div id=\"attachment_16317\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2021\/04\/Eck-Geiger-Duplexmotor.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16317\" class=\"size-large wp-image-16317\" src=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2021\/04\/Eck-Geiger-Duplexmotor-528x598.jpg\" alt=\"\" width=\"528\" height=\"598\" \/><\/a><p id=\"caption-attachment-16317\" class=\"wp-caption-text\">Eck-Geiger&#8217;s Duplex motors share shaft, operate independent of one another<\/p><\/div>\n<p>To enable a good cruising speed (120 kilometers per hour or 75 mph), quick takeoff (200 meters or 657 feet) and a three meters per second (590 feet per minute) rate of climb, Elektra Trainer has an electrically-actuated monowheel landing gear.\u00a0 A fixed tricycle gear is an option.\u00a0 Its 1.75-meter (5.74-feet or 69-inch), three-blade propeller turns slowly for maximum efficiency.\u00a0 Electric flaps help the craft land in the same distance in which it took off.<\/p>\n<p>Elektra Trainer\u2019s excellent aerodynamics and light weight are complemented by the power system, an integrated dual motor, controller and bespoke batteries.\u00a0 <a href=\"https:\/\/www.geigerengineering.de\/en\/avionics\/new-developments\">Eck-Geiger Engineering\u2019s HPD40 Duplex motor<\/a> is really two separate motors on a common shaft.\u00a0 The firm describes its redundancy and safety.\u00a0 \u201cTwo mechanically and electrically completely separate individual motors work without gears on a propeller shaft, so that if there is a fault in one powertrain, the aircraft can continue its flight as normal.\u201d\u00a0 For all that power and refinement, the motor weighs a mere 12 kilograms (26.5 pounds).<\/p>\n<p>Described as \u201cwhisper silent,\u201d the craft will generate a claimed \u201cabout 50 dB,\u201d which would make it one of the quietest aircraft outside of a sailplane.\u00a0 Completing the sailplane comparison, the craft can be transported in a \u201cnormal glider trailer\u201d and assembled in 30 minutes.<\/p>\n<div id=\"attachment_16316\" style=\"width: 538px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2021\/04\/Elektra-Solar-Trainer-tricycle-gear.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16316\" class=\"size-large wp-image-16316\" src=\"http:\/\/sustainableskies.org\/wp-content\/uploads\/2021\/04\/Elektra-Solar-Trainer-tricycle-gear-528x528.jpg\" alt=\"\" width=\"528\" height=\"528\" \/><\/a><p id=\"caption-attachment-16316\" class=\"wp-caption-text\">Elektra Trainer with tricycle gear<\/p><\/div>\n<p>Its large cabin, 1.2 meters (47.24 inches) wide, can accommodate pilots up to two meters (78 inches) in height.\u00a0 \u00a0Its quiet, emission free operation should find favor with instructors and trainees alike.\u00a0 Its low operating cost, claimed to be 50 euros (about $60 US) per hour including depreciation, maintenance, charging, battery replacement costs, and insurance, are about half those for typical trainers, according to Elektra Solar, Calin\u2019s firm.\u00a0 Elektra Solar claims the craft will save operators about 500,000 euros (about $598,000 US) over its 10,000 hour lifetime \u2013 more than double its less than 200,000 euro ($239.000US) purchase price.\u00a0 .<\/p>\n<h4><strong>A Digital Option<\/strong><\/h4>\n<p>DAP (Digital Aircraft Platform) is the basis for all control and monitoring elements of the aircraft. \u00a0DAP performs real-time monitoring and logging of all aircraft parameters, provides intelligent assistance to the pilot and activates protection algorithms automatically in critical situations.<\/p>\n<p>DAP simplifies aircraft operation and maintenance.\u00a0 The life of each essential part (like batteries, motor and propeller) is monitored in real time, analyzed\u00a0 and documented continuously.\u00a0 With special software, the flights can be visualized and analyzed.<\/p>\n<p>One hopes this doesn\u2019t lull pilots into falling asleep at the stick, emulating drivers who become too confident of the degree of assistance their \u201cautopilot\u201d will provide.\u00a0 <a href=\"https:\/\/www.theverge.com\/2021\/4\/18\/22390612\/two-people-killed-fiery-tesla-crash-no-driver\">Two passengers were recently killed in a wreck of a popular electric car<\/a>, neither in the driver\u2019s seat while the car hurtled along.<\/p>\n<div id=\"facebook_like\"><iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fcafe.foundation%2Fblog%2Felektra-trainer-flight-training-for-the-new-age%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>A Decade of Development A modified version of Elektra One, flying since 2011 and certified in the German ultralight\u00a0 class, Calin Gologan\u2019s Elektra Trainer could provide affordable flight training with lower operating costs.\u00a0 Calin displayed Elektra One at the 2012 AirVenture show in Oshkosh, Wisconsin, flying daily on the power of its solar-charged batteries. The [&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":[7568,6680,6660,15,14],"tags":[323,10671,10672,510,7643,10673,10674,10675,10676,10677,8636],"class_list":["post-14008","post","type-post","status-publish","format-standard","category-announcements","category-electric-aircraft-components","category-electric-aircraft-materials","category-electric_powerplants","category-sustainable_ga","tag-calin-gologan","tag-dap-digital-aircraft-platform","tag-eck-geiger-hpd-40","tag-elektra-one","tag-elektra-solar-gmbh","tag-elektra-trainer","tag-elektra-two-solar","tag-german-aerospace-center-dlr","tag-institute-for-robotics-and-mechatronics","tag-ops-optionally-piloted-systems","tag-uas-unmanned-aerial-systems"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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