{"id":720,"date":"2010-03-09T13:20:14","date_gmt":"2010-03-09T20:20:14","guid":{"rendered":"http:\/\/cafe.foundation\/blog\/?p=720"},"modified":"2010-12-26T23:50:12","modified_gmt":"2010-12-27T06:50:12","slug":"cutting-grass-with-manfred-ruhmer","status":"publish","type":"post","link":"http:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/","title":{"rendered":"Cutting Grass with Manfred Ruhmer"},"content":{"rendered":"<p>Manfred Ruhmer has designed a motorized trike for the Laminar wing\u00a0under which\u00a0he has flown to world champion status three times, and achieved a world record flight of 701 kilometers (434.62 miles).\u00a0 The trike can be powered with a Simonini two-stroke\u00a0or Bailey four-stroke engine, or the Geiger\/Eck electric motor\/controller\/folding propeller combination.<\/p>\n<p><iframe loading=\"lazy\" title=\"Icaro 2000 Electric trike\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/UhZKChzNjfM?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>Here, Manfred shows off some of his world-class flying skills.\u00a0 Note that about 40 seconds into the video, the landing gear has picked up some vegetation.\u00a0 Later, at around the 2:00 mark, the streamers reappear.\u00a0 Whether this is from the grassy field from which Manfred flies, or some very\u00a0low passes, is open to speculation.<\/p>\n<p>The <a href=\"http:\/\/www.icaro2000.com\/News\/News.htm\">Icaro 2000 <\/a>site is useful for making some important comparisons between the IC engine options and the electric flyer.<\/p>\n<p>Each of the two engines&#8217; installed weights is 18.3 kilograms (40.26 pounds), and the fuel tank for either holds 8 liters of fuel.\u00a0 Icaro\u00a0claims both engines consume about 2 to 2.5 liters per hour, giving up to four hours endurance on the small tank.\u00a0<\/p>\n<p>The HP10 electric motor weighs only 5 kilograms (11 pounds) to the basic airframe, and the smallest, 24 Amp-hour\u00a0battery pack adds 12.5 kilograms (27.5 pounds), slightly lighter than either gasoline-powered engine and fuel.\u00a0 If one is content with 20 minutes power duration, and willing to rely on thermals to remain aloft, this is a viable electric alternative.<\/p>\n<p>More endurance requires bigger battery packs, with the 40 Amp-hour pack adding 16 kilograms (39.2 pounds) and the 60 Amp-hour pack 22 kilograms (48.4 pounds).\u00a0 Endurance goes to 3o minutes and 40 minutes, respectively.\u00a0<\/p>\n<p>The Simonini puts out 80 kilograms (176 pounds)\u00a0of thrust, while the Bailey and HP-10 each produce 60 kilograms (132 pounds).\u00a0<\/p>\n<p>Pricing, depending on battery pack, runs from 8,300 Euros ($11,255) to 10,800 euros ($14,645).\u00a0 The Simonini tw0-stroke version is 6,500 Euros ($8,873) and the Bailey four-stroke version sells for 7,500 Euros ($10,237).\u00a0 This seems like a relatively inexpensive way to fly a stable, highly entertaining electric vehicle. <\/p>\n<div id=\"facebook_like\"><iframe src=\"http:\/\/www.facebook.com\/plugins\/like.php?href=http%3A%2F%2Fcafe.foundation%2Fblog%2Fcutting-grass-with-manfred-ruhmer%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>Manfred Ruhmer has designed a motorized trike for the Laminar wing\u00a0under which\u00a0he has flown to world champion status three times, and achieved a world record flight of 701 kilometers (434.62 miles).\u00a0 The trike can be powered with a Simonini two-stroke\u00a0or Bailey four-stroke engine, or the Geiger\/Eck electric motor\/controller\/folding propeller combination. Here, Manfred shows off some [&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":[15,1],"tags":[295,296,294,293],"class_list":["post-720","post","type-post","status-publish","format-standard","category-electric_powerplants","category-uncategorized","tag-geigereck-electric-motor","tag-hp10-motor","tag-icaro-2000","tag-manfred-ruhmer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cutting Grass with Manfred Ruhmer - 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=\"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cutting Grass with Manfred Ruhmer - CAFE Foundation Blog\" \/>\n<meta property=\"og:description\" content=\"Manfred Ruhmer has designed a motorized trike for the Laminar wing\u00a0under which\u00a0he has flown to world champion status three times, and achieved a world record flight of 701 kilometers (434.62 miles).\u00a0 The trike can be powered with a Simonini two-stroke\u00a0or Bailey four-stroke engine, or the Geiger\/Eck electric motor\/controller\/folding propeller combination. Here, Manfred shows off some [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/\" \/>\n<meta property=\"og:site_name\" content=\"CAFE Foundation Blog\" \/>\n<meta property=\"article:published_time\" content=\"2010-03-09T20:20:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2010-12-27T06:50:12+00:00\" \/>\n<meta name=\"author\" content=\"Dean Sigler\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dean Sigler\" \/>\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:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/\"},\"author\":{\"name\":\"Dean Sigler\",\"@id\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/#\\\/schema\\\/person\\\/e9c06a89f78d39fc03473ec90f4902a7\"},\"headline\":\"Cutting Grass with Manfred Ruhmer\",\"datePublished\":\"2010-03-09T20:20:14+00:00\",\"dateModified\":\"2010-12-27T06:50:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/\"},\"wordCount\":314,\"commentCount\":0,\"keywords\":[\"Geiger\\\/Eck electric motor\",\"HP10 motor\",\"Icaro 2000\",\"Manfred Ruhmer\"],\"articleSection\":[\"Electric Powerplants\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/\",\"url\":\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/\",\"name\":\"Cutting Grass with Manfred Ruhmer - CAFE Foundation Blog\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/#website\"},\"datePublished\":\"2010-03-09T20:20:14+00:00\",\"dateModified\":\"2010-12-27T06:50:12+00:00\",\"author\":{\"@id\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/#\\\/schema\\\/person\\\/e9c06a89f78d39fc03473ec90f4902a7\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/cafe.foundation\\\/blog\\\/cutting-grass-with-manfred-ruhmer\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cutting Grass with Manfred Ruhmer\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/#website\",\"url\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/\",\"name\":\"CAFE Foundation Blog\",\"description\":\"Information and discussion from the Comparative Aircraft Flight Efficiency (CAFE) Foundation.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/#\\\/schema\\\/person\\\/e9c06a89f78d39fc03473ec90f4902a7\",\"name\":\"Dean Sigler\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da6e77f17fefcd82e6b725d7f52d2ee07f3aa62cd3699007b8af82a7b52dc23?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da6e77f17fefcd82e6b725d7f52d2ee07f3aa62cd3699007b8af82a7b52dc23?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da6e77f17fefcd82e6b725d7f52d2ee07f3aa62cd3699007b8af82a7b52dc23?s=96&d=mm&r=g\",\"caption\":\"Dean Sigler\"},\"sameAs\":[\"http:\\\/\\\/cafefoundation.org\"],\"url\":\"http:\\\/\\\/cafe.foundation\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Cutting Grass with Manfred Ruhmer - CAFE Foundation Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/","og_locale":"en_US","og_type":"article","og_title":"Cutting Grass with Manfred Ruhmer - CAFE Foundation Blog","og_description":"Manfred Ruhmer has designed a motorized trike for the Laminar wing\u00a0under which\u00a0he has flown to world champion status three times, and achieved a world record flight of 701 kilometers (434.62 miles).\u00a0 The trike can be powered with a Simonini two-stroke\u00a0or Bailey four-stroke engine, or the Geiger\/Eck electric motor\/controller\/folding propeller combination. Here, Manfred shows off some [&hellip;]","og_url":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/","og_site_name":"CAFE Foundation Blog","article_published_time":"2010-03-09T20:20:14+00:00","article_modified_time":"2010-12-27T06:50:12+00:00","author":"Dean Sigler","twitter_misc":{"Written by":"Dean Sigler","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/#article","isPartOf":{"@id":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/"},"author":{"name":"Dean Sigler","@id":"http:\/\/cafe.foundation\/blog\/#\/schema\/person\/e9c06a89f78d39fc03473ec90f4902a7"},"headline":"Cutting Grass with Manfred Ruhmer","datePublished":"2010-03-09T20:20:14+00:00","dateModified":"2010-12-27T06:50:12+00:00","mainEntityOfPage":{"@id":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/"},"wordCount":314,"commentCount":0,"keywords":["Geiger\/Eck electric motor","HP10 motor","Icaro 2000","Manfred Ruhmer"],"articleSection":["Electric Powerplants"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/","url":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/","name":"Cutting Grass with Manfred Ruhmer - CAFE Foundation Blog","isPartOf":{"@id":"http:\/\/cafe.foundation\/blog\/#website"},"datePublished":"2010-03-09T20:20:14+00:00","dateModified":"2010-12-27T06:50:12+00:00","author":{"@id":"http:\/\/cafe.foundation\/blog\/#\/schema\/person\/e9c06a89f78d39fc03473ec90f4902a7"},"breadcrumb":{"@id":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/cafe.foundation\/blog\/cutting-grass-with-manfred-ruhmer\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"http:\/\/cafe.foundation\/blog\/"},{"@type":"ListItem","position":2,"name":"Cutting Grass with Manfred Ruhmer"}]},{"@type":"WebSite","@id":"http:\/\/cafe.foundation\/blog\/#website","url":"http:\/\/cafe.foundation\/blog\/","name":"CAFE Foundation Blog","description":"Information and discussion from the Comparative Aircraft Flight Efficiency (CAFE) Foundation.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"http:\/\/cafe.foundation\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"http:\/\/cafe.foundation\/blog\/#\/schema\/person\/e9c06a89f78d39fc03473ec90f4902a7","name":"Dean Sigler","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/0da6e77f17fefcd82e6b725d7f52d2ee07f3aa62cd3699007b8af82a7b52dc23?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0da6e77f17fefcd82e6b725d7f52d2ee07f3aa62cd3699007b8af82a7b52dc23?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/0da6e77f17fefcd82e6b725d7f52d2ee07f3aa62cd3699007b8af82a7b52dc23?s=96&d=mm&r=g","caption":"Dean Sigler"},"sameAs":["http:\/\/cafefoundation.org"],"url":"http:\/\/cafe.foundation\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/posts\/720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/comments?post=720"}],"version-history":[{"count":13,"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/posts\/720\/revisions"}],"predecessor-version":[{"id":735,"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/posts\/720\/revisions\/735"}],"wp:attachment":[{"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/media?parent=720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/categories?post=720"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/cafe.foundation\/blog\/wp-json\/wp\/v2\/tags?post=720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}