{"id":3756,"date":"2024-07-12T13:46:01","date_gmt":"2024-07-12T13:46:01","guid":{"rendered":"https:\/\/www.buildsoft.eu\/?post_type=reference-project&#038;p=3756"},"modified":"2026-07-28T12:41:05","modified_gmt":"2026-07-28T12:41:05","slug":"md-11-taildock","status":"publish","type":"reference-project","link":"https:\/\/www.buildsoft.eu\/en\/reference-projects\/md-11-taildock\/","title":{"rendered":"MD-11 Taildock"},"content":{"rendered":"\n<p>The MD-11 taildock at Schiphol is an 18-metre cantilevered structure that lets aircraft engineers safely access and inspect the tail of an MD-11 aircraft, with a built-in elevator for engine replacement. With only about 20 cm of clearance above the aircraft&#8217;s fuselage, keeping deflection under control was the key structural challenge for this roughly 110-tonne dock.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The project<\/h2>\n\n\n\n<p>NIJL Aircraft Docking has completed the installation for the MD-11. Begin able to work both fast and safe are are the main requirements in the design of the tail dock. This highly innovative tail dock makes that docking, inspection and maintenance of the aircraft can be done quickly and safely.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Keeping deflection under control with only 20 cm to spare<\/h2>\n\n\n\n<p>The cantilever is 18m, while the space above the body of the aircraft but is approximately 20cm. The deflection is therefore of great importance. The free passage under the mobile dock also has much influence on the deflection. It is also possible to quickly and safely replace the engine in the tail of the aircraft to the built-in elevator. The total weight of the dock is about 110 tons.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"FAQ\">FAQ<\/h2>\n\n\n<div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-31692949 uagb-faq-icon-row uagb-faq-layout-accordion uagb-faq-expand-first-true uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     \" data-faqtoggle=\"true\" role=\"tablist\"><script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"@id\":\"https:\\\/\\\/www.buildsoft.eu\\\/en\\\/reference-projects\\\/md-11-taildock\\\/\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Why is deflection such a critical design factor for a cantilevered structure like an aircraft tail dock?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A dock built to work close around an aircraft's fuselage has very little clearance to work with, in this case only about 20 cm. Since a cantilevered structure naturally deflects under its own weight and any additional loads, that deflection has to stay well within the available clearance at every point along its length, or the dock risks contacting the aircraft it's meant to protect.\"}}]}<\/script><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-87a05934 \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\">Why is deflection such a critical design factor for a cantilevered structure like an aircraft tail dock?<\/span><\/div><div class=\"uagb-faq-content\"><p>A dock built to work close around an aircraft&#8217;s fuselage has very little clearance to work with, in this case only about 20 cm. Since a cantilevered structure naturally deflects under its own weight and any additional loads, that deflection has to stay well within the available clearance at every point along its length, or the dock risks contacting the aircraft it&#8217;s meant to protect.<\/p><\/div><\/div><\/div>","protected":false},"author":6,"template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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