{"id":1067,"date":"2020-12-27T18:59:55","date_gmt":"2020-12-27T17:59:55","guid":{"rendered":"http:\/\/tst.minijets.org\/?page_id=1067"},"modified":"2024-11-01T22:45:17","modified_gmt":"2024-11-01T21:45:17","slug":"heinkel-greif-1b","status":"publish","type":"page","link":"https:\/\/minijets.org\/fr\/0-100\/bmw-8026\/heinkel-greif-1b\/","title":{"rendered":"Heinkel Greif 1b"},"content":{"rendered":"\n<p>Le motoplaneur \u00e0 r\u00e9action <strong>Heinkel Greif 1b<\/strong> est une \u00e9volution du planeur <strong><a href=\"http:\/\/www.fk-servicecenter.com\/navid.17.dblid.8\/greif-1a-fk1-1959-otto-funk.htm\" target=\"_blank\" rel=\"noopener\">Greif 1a<\/a><\/strong>, con\u00e7u en 1959 par un jeune \u00e9tudiant prometteur, Otto Funk. Bien qu&#8217;il ait pu logiquement porter le nom de FK1, il a \u00e9t\u00e9 construit pour le compte de la soci\u00e9t\u00e9 <strong>Heinkel<\/strong> \u00e0 Speyer, ce qui explique sa d\u00e9signation.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"291\" src=\"http:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1a_-_-01.jpg\" alt=\"Heinkel Greif 1a\" class=\"wp-image-426\" srcset=\"https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1a_-_-01.jpg 500w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1a_-_-01-300x175.jpg 300w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1a_-_-01-18x10.jpg 18w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Planeur Heinkel Greif 1a. Source : Aviation week, june 1962.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"729\" height=\"417\" src=\"http:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif_1b_04.jpg\" alt=\"Heinkel Greif 1b\" class=\"wp-image-428\" srcset=\"https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif_1b_04.jpg 729w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif_1b_04-300x172.jpg 300w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif_1b_04-18x10.jpg 18w\" sizes=\"auto, (max-width: 729px) 100vw, 729px\" \/><figcaption class=\"wp-element-caption\">Motoplaneur Greif 1b. Source : journal les Ailes, Janvier 1962<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"197\" src=\"http:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1b_-_-02.jpg\" alt=\"Heinkel Greif 1b\" class=\"wp-image-430\" srcset=\"https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1b_-_-02.jpg 500w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1b_-_-02-300x118.jpg 300w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/Greif-_1b_-_-02-18x7.jpg 18w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"864\" src=\"http:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/heinkel_greif1b_P3views-1024x864.png\" alt=\"Heinkel Greif 1a\" class=\"wp-image-427\" srcset=\"https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/heinkel_greif1b_P3views-1024x864.png 1024w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/heinkel_greif1b_P3views-300x253.png 300w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/heinkel_greif1b_P3views-768x648.png 768w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/heinkel_greif1b_P3views-14x12.png 14w, https:\/\/minijets.org\/wp-content\/uploads\/2020\/12\/heinkel_greif1b_P3views.png 1119w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Plan 3 vues du planeur Heinkel greif 1a<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p>Otto Funk, qui a poursuivi par la suite une carri\u00e8re prolifique en a\u00e9ronautique et a d\u00e9velopp\u00e9 la c\u00e9l\u00e8bre s\u00e9rie d&#8217;ULM FK reconnue mondialement, a r\u00e9alis\u00e9 le premier vol du Greif 1b en d\u00e9cembre 1960. L\u2019appareil a ensuite \u00e9t\u00e9 pr\u00e9sent\u00e9 au public pour la premi\u00e8re fois lors du meeting a\u00e9rien de Hanovre en 1962.<\/p>\n\n\n\n<p>La variante Greif 1b a \u00e9t\u00e9 \u00e9quip\u00e9e d&#8217;un turbor\u00e9acteur <a href=\"https:\/\/minijets.org\/0-100\/bmw-8026\/\" data-type=\"page\" data-id=\"5285\"><strong>BMW 8026<\/strong>,<\/a> int\u00e9gr\u00e9 dans le fuselage et fix\u00e9 sur la cloison pare-feu derri\u00e8re le si\u00e8ge du pilote, avec une inclinaison d&#8217;environ 30\u00b0 vers le sol. Cette disposition lui a permis de d\u00e9coller de mani\u00e8re autonome.<\/p>\n\n\n\n<p>Pour concr\u00e9tiser ce motoplaneur \u00e0 r\u00e9action, Otto Funk s\u2019est appuy\u00e9 sur plusieurs choix techniques \u00e9tablis lors de la conception du Greif 1a :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Une structure enti\u00e8rement m\u00e9tallique, permettant de maintenir un poids r\u00e9duit ;<\/li>\n\n\n\n<li>L\u2019utilisation de stratifi\u00e9 uniquement pour certains \u00e9l\u00e9ments soumis \u00e0 de faibles charges.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pr\u00e9sentation<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Les Ailes<\/h3>\n\n\n\n<p>L&#8217;aile a un contour trap\u00e9zo\u00efdal, sans di\u00e8dre. Les principales nervures de liaison sont en aluminium. Toutes les autres sont r\u00e9alis\u00e9es en mousse de polystyr\u00e8ne. Les raccords au fuselage sont r\u00e9alis\u00e9s en acier. Le rev\u00eatement est en aluminium de 0,5 mm d&#8217;\u00e9paisseur. Les ailerons et a\u00e9rofreins de type Schempp-Hirth sont constitu\u00e9s de m\u00e9tal l\u00e9ger.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Le Fuselage<\/h3>\n\n\n\n<p>La partie avant du fuselage, de la pointe jusqu&#8217;\u00e0 l&#8217;extr\u00e9mit\u00e9 du compartiment r\u00e9acteur est form\u00e9e de cadres tubulaires en acier recouverts d&#8217;une coque en stratifi\u00e9e non-structurale. &nbsp;L\u2019arri\u00e8re du fuselage est form\u00e9e d&#8217;une poutre tubulaire en t\u00f4le d\u2019alliage l\u00e9ger. Les deux sections sont assembl\u00e9es par 4 boulons.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L&#8217;empennage<\/h3>\n\n\n\n<p>C&#8217;est un empennage en V \u00e0 100\u00b0, dont la particularit\u00e9 est que les deux moiti\u00e9s de l&#8217;empennage sont interchangeables.&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le motoplaneur \u00e0 r\u00e9action Heinkel Greif 1b est une \u00e9volution du planeur Greif 1a, con\u00e7u en 1959 par un jeune \u00e9tudiant prometteur, Otto Funk. Bien qu&#8217;il ait pu logiquement porter le nom de FK1, il a \u00e9t\u00e9 construit pour le compte de la soci\u00e9t\u00e9 Heinkel \u00e0 Speyer, ce qui explique sa d\u00e9signation. Otto Funk, qui [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":428,"parent":5285,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[17],"tags":[],"planes-000-100":[],"class_list":["post-1067","page","type-page","status-publish","has-post-thumbnail","hentry","category-plane-000-100"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/pages\/1067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/comments?post=1067"}],"version-history":[{"count":6,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/pages\/1067\/revisions"}],"predecessor-version":[{"id":9791,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/pages\/1067\/revisions\/9791"}],"up":[{"embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/pages\/5285"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/media\/428"}],"wp:attachment":[{"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/media?parent=1067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/categories?post=1067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/tags?post=1067"},{"taxonomy":"planes-000-100","embeddable":true,"href":"https:\/\/minijets.org\/fr\/wp-json\/wp\/v2\/planes-000-100?post=1067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}