{"id":14562,"date":"2017-07-13T00:00:00","date_gmt":"2017-07-13T00:00:00","guid":{"rendered":"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/"},"modified":"2025-06-30T18:28:17","modified_gmt":"2025-06-30T18:28:17","slug":"us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer","status":"publish","type":"our_work","link":"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/","title":{"rendered":"US Air Force Landing Gear Test Facility (LGTF) \u2013 Aircraft Tire Dynamometer"},"content":{"rendered":"\n<p>DMC\u2019s solution is built on the National Instruments platform, leveraging NI&#8217;s highly capable controller targets and signal I\/O modules in close conjunction with the full-featured LabVIEW development environment. DMC delivered a fully open solution (including all source code), adding great value by enabling LGTF\u2019s in-house engineers and developers to readily maintain, refine, and expand the system over time to support evolving test requirements.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-core-system-capabilities\">Core System Capabilities<\/h2>\n\n\n\n<p>Core capabilities of the control system include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Manage over 500 channels in real time<\/strong>\n\n \n \n<ul class=\"wp-block-list\">\n<li>Includes acquisition, limit checking, display, and logging<\/li>\n\n\n\n<li>300 physical input and output channels<\/li>\n\n\n\n<li>200 dynamically calculated channels<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Acquire and log data at 5000 Hz<\/strong>\n \n \n<ul class=\"wp-block-list\">\n<li>Sampling in FPGA with precise synchronization across 5x 13 slot FPGA chasses<\/li>\n\n\n\n<li>Continually log ALL channels to disk at full acquisition rates<\/li>\n\n\n\n<li>Comprehensive rolling system history log and multiple test log files<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Extremely fast and precise motion control<\/strong>\n \n \n<ul class=\"wp-block-list\">\n<li>Execute control at 1000 Hz loop rates within FPGA<\/li>\n\n\n\n<li>Utilize cascaded PID control scheme and dynamic compensations for dyno frame dynamics (e.g. accelerations, dynamics limits, etc.)<\/li>\n\n\n\n<li>Control of multi-axis tire carriage with massive hydraulic actuators for radial, yaw, and camber axes<\/li>\n\n\n\n<li>Control tire brake control in pressure, torque, and force<\/li>\n\n\n\n<li>Newly developed slip control to increase machine capabilities<\/li>\n\n\n\n<li>Dynamic and bumpless control mode switching (e.g. position to force)<\/li>\n\n\n\n<li>Control flywheel motor via Profibus to drive massive 14\u2019 flywheel at hundreds of miles an hour<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Dynamic user interfaces<\/strong>\n \n \n<ul class=\"wp-block-list\">\n<li>Operators open desired instances of modular scoping\/graphing panels to build their \u201cworkspace\u201d to easily view and analyze the channels for the task at hand.&nbsp;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>DMC designed and fabricated a complete controls cabinet, as shown in the images below.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6986491161107&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image size-large is-resized wp-lightbox-container\"><img decoding=\"async\" width=\"230\" height=\"345\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" data-id=\"34163\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151706\/image-2.png\" alt=\"Image of Landing Gear Test Facility cabinet front\" class=\"wp-image-34163\" style=\"width:230px\" srcset=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151706\/image-2.png 230w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151706\/image-2-200x300.png 200w\" sizes=\"(max-width: 230px) 100vw, 230px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69864911615b6&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image size-large is-resized wp-lightbox-container\"><img decoding=\"async\" width=\"230\" height=\"345\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" data-id=\"34165\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151705\/image-3.png\" alt=\"Image of Landing Gear Test Facility controller panel\" class=\"wp-image-34165\" style=\"width:230px\" srcset=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151705\/image-3.png 230w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151705\/image-3-200x300.png 200w\" sizes=\"(max-width: 230px) 100vw, 230px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6986491161936&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image size-large is-resized wp-lightbox-container\"><img decoding=\"async\" width=\"230\" height=\"345\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" data-id=\"34166\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151705\/image-4.png\" alt=\"Image of Landing Gear Test Facility connector panel\" class=\"wp-image-34166\" style=\"width:230px\" srcset=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151705\/image-4.png 230w, https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27151705\/image-4-200x300.png 200w\" sizes=\"(max-width: 230px) 100vw, 230px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>The controller was delivered with customer defined connector panel (shown in the third image on the right) that mapped to existing cabling\/connectors for dynamometer sensors\/actuators, allowing easy field integration while commissioning the new controller.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-multi-layer-system-architecture\">Multi-Layer System Architecture<\/h2>\n\n\n\n<p>The system was architected with a modular, layered design involving multiple layers of control\/processing on multiple controller targets and subsystems. &nbsp;A diagram of the system architecture is shown below:&nbsp;<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69864911626d5&quot;}\" data-wp-interactive=\"core\/image\" class=\"wp-block-image wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on-async--click=\"actions.showLightbox\" data-wp-on-async--load=\"callbacks.setButtonStyles\" data-wp-on-async-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2025\/05\/27165926\/Diagram-of-System-Architecture_1.png\" alt=\"\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on-async--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p>Various types of controllers were employed so that each system function is deliberately implemented in an environment best suited to handling the given function.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>LabVIEW FPGA Control Layer<\/strong>\n\n \n \n<ul class=\"wp-block-list\">\n<li>5 separate 14-slot NI FPGA MXIe RIO chasses joined in a unified framework<\/li>\n\n\n\n<li>Closely integrated via time synchronization and deterministic data sharing, yielding a converged FPGA layer for control and data acquisition<\/li>\n\n\n\n<li>Cascaded closed loop control algorithms execute rapidly and deterministically<\/li>\n\n\n\n<li>Critical safety logic and limit checking execute with high reliability<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>LabVIEW RT Control Layer<\/strong>\n \n \n<ul class=\"wp-block-list\">\n<li>Mid-level control functions (test sequencing, event detection, trajectory generation, etc.) execute deterministically<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>PC Control Layer<\/strong>\n \n \n<ul class=\"wp-block-list\">\n<li>Graphical user interface runs in a familiar, easily accessible Windows PC controller<\/li>\n\n\n\n<li>LabVIEW\u2019s full suite of UI tools are employed for a full featured, visually appealing, and intuitive GUI (designed\/customized based on direct input\/guidance from end users)<\/li>\n\n\n\n<li>Highly flexible Sequence Editor to define test processes<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Data Logger Subsystem<\/strong>\n \n \n<ul class=\"wp-block-list\">\n<li>Logging large volumes of data executes on a Windows-based data logger subsystem, streaming to external RAID storage<\/li>\n\n\n\n<li>Generation of multiple simultaneous user configurable log files at full acquired data rates<\/li>\n\n\n\n<li>High rate data collection runs parallel to primary control, avoiding impacts to critical operations<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>This layered design naturally established clear roles for each subsystem and of the interfaces between them. The resultant modularity and functional segmentation of the design yielded a flexible system that is easy to debug, maintain, and enhance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-project-outcome\">Project Outcome<\/h2>\n\n\n\n<p>Today, with the enhanced capabilities of DMC\u2019s modernized control system, the Landing Gear Test Facility is using this unique tire testing dynamometer to achieve their facility mission: delivering world-class full scale test and evaluation of commercial and military aircraft tires.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DMC\u2019s solution is built on the National Instruments platform, leveraging NI&#8217;s highly capable controller targets and signal I\/O modules in close conjunction with the full-featured LabVIEW development environment. DMC delivered a fully open solution (including all source code), adding great value by enabling LGTF\u2019s in-house engineers and developers to readily maintain, refine, and expand the [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":31423,"template":"","meta":{"customer":"Air Force","summary":"The Landing Gear Test Facility (LGTF) at Wright Patterson AFB&#039;s&nbsp;mission is to provide Research Development Test and Evaluation for aircraft safety and sustainment through world-class full scale test and evaluation of aircraft launch &amp; alighting hardware (struts, wheels, brakes, tires, anti-skid, etc.). LGTF operates a large-scale, one-of-a-kind dynamometer for testing a range of commercial and military aircraft tires. The dynamometer evaluates tire performance and wear characteristics across scenarios such as takeoff, landing, and taxi.&nbsp;\r\n\r\nThis dynamometer had an aging control system that could not meet LGTF&#039;s current test requirements and goals.&nbsp;To meet LGTF&#039;s needs, DMC designed and deployed a new enhanced control and data acquisition system.&nbsp;\r\n\r\nDMC&nbsp;delivered an open platform control system built&nbsp;upon National Instruments hardware, providing the Landing Gear Test Facility with the extended feature set and increased control\/acquisition capabilities they needed to achieve their facility mission.","description":"","customer_benefits":"<ul>\r\n <li><strong>Open Hardware Platform<\/strong>&nbsp;\r\n\r\n <ul>\r\n  <li>Utilizes&nbsp;state of the art, high performance National Instruments devices<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><strong>Full source code delivered<\/strong>\r\n <ul>\r\n  <li>Provides end customer with full ownership and maintainability of system<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><strong>User defined tests and profiles<\/strong>\r\n <ul>\r\n  <li>Provided by highly flexible DMCquencer framework for scripting\/sequencing<\/li>\r\n  <li>Includes event-driven detection\/response features<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><strong>Manual and automated logging tools<\/strong>\r\n <ul>\r\n  <li>Enables logging desired data subsets at desired rates to multiple simultaneous log files<\/li>\r\n  <li>Always maintain comprehensive historical buffer of all system channels at full rate for diagnostics<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><strong>Enhanced Control<\/strong>\r\n <ul>\r\n  <li>Faster control loop rates to improve control fidelity<\/li>\r\n  <li>More options to manage bumpless control mode transitions<\/li>\r\n  <li>New control capabilities like dynamic slip control<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><strong>Heavily leveraging FPGA benefits<\/strong>\r\n <ul>\r\n  <li>Core operating constraints, limit checking, and controlled stops are fully managed in highly responsive\/reliable FPGA control layer&nbsp;&nbsp;<\/li>\r\n <\/ul>\r\n <\/li>\r\n<\/ul>","components_used":"<ul>\r\n <li><a href=\"http:\/\/www.ni.com\/en-us\/shop\/labview.html\" target=\"_blank\">LabVIEW Development Platform<\/a><\/li>\r\n <li><a href=\"http:\/\/www.ni.com\/labview\/realtime\/\" target=\"_blank\">LabVIEW Real Time Module<\/a><\/li>\r\n <li><a href=\"http:\/\/www.ni.com\/pxi\/\" target=\"_blank\">NI PXI Chassis<\/a><\/li>\r\n <li><a href=\"http:\/\/www.ni.com\/fpga\/\">LabVIEW FPGA Module<\/a>\r\n <ul>\r\n  <li>C Series I\/O Modules<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><a href=\"http:\/\/www.ni.com\/en-us\/support\/model.ni-9469.html\" target=\"_blank\">NI Timing and Synchronization Modules<\/a> (for FPGA Chasses)<\/li>\r\n <li><a href=\"http:\/\/www.ni.com\/white-paper\/12523\/en\/\" target=\"_blank\">PXI MultiComputing<\/a> (PXImc)\r\n <ul>\r\n  <li>High throughput data bus transferring acquired data to logging subsystem<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><a href=\"http:\/\/www.ni.com\/en-us\/support\/model.pxi-profibus.html\" target=\"_blank\">PXI Profibus Interface<\/a>\r\n <ul>\r\n  <li>Integration of NI RT Controller with Flywheel Motor Drive<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li>DMCquencer framework\r\n <ul>\r\n  <li>Engineers write custom test profiles through an intuitive editor and deploy these sequences to Real Time controller for execution<\/li>\r\n <\/ul>\r\n <\/li>\r\n <li><a href=\"https:\/\/www.dmcinfo.com\/services\/test-and-measurement-automation\/automated-test-stand-design\" target=\"_blank\">Turn Key Control System Design<\/a><\/li>\r\n <li>Redundant high speed RAID data storage<\/li>\r\n <li><a href=\"http:\/\/signalxtech.com\/products\/dsa\/\" target=\"_blank\">DSA 2.9 Sound and Vibration Analyzer<\/a>\r\n <ul>\r\n  <li>Vibration monitoring system for bearing health assessment on dyno flywheel and motor<\/li>\r\n <\/ul>\r\n <\/li>\r\n<\/ul>","project":"Aircraft Tire Dynamometer","author":"Jesse Batsche","notes":""},"work_category":[707,685,684],"class_list":["post-14562","our_work","type-our_work","status-publish","has-post-thumbnail","hentry","work_category-aerospace-and-defense","work_category-labview","work_category-test-measurement-automation"],"yoast_head":"<title>US Air Force Landing Gear Test Facility (LGTF) \u2013 Aircraft Tire Dynamometer | DMC, Inc.<\/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:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"US Air Force Landing Gear Test Facility (LGTF) \u2013 Aircraft Tire Dynamometer\" \/>\n<meta property=\"og:description\" content=\"DMC\u2019s solution is built on the National 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DMC delivered a fully open solution (including all source code), adding great value by enabling LGTF\u2019s in-house engineers and developers to readily maintain, refine, and expand the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/\" \/>\n<meta property=\"og:site_name\" content=\"DMC, Inc.\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pages\/DMC-Inc\/107982009242929\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-30T18:28:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27152847\/aerospace-and-defense-f22-rocket.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1706\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/\",\"url\":\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/\",\"name\":\"US Air Force Landing Gear Test Facility (LGTF) \u2013 Aircraft Tire Dynamometer | DMC, Inc.\",\"isPartOf\":{\"@id\":\"https:\/\/www.dmcinfo.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27152847\/aerospace-and-defense-f22-rocket.jpg\",\"datePublished\":\"2017-07-13T00:00:00+00:00\",\"dateModified\":\"2025-06-30T18:28:17+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.dmcinfo.com\/our-work\/us-air-force-landing-gear-test-facility-lgtf-aircraft-tire-dynamometer\/#primaryimage\",\"url\":\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27152847\/aerospace-and-defense-f22-rocket.jpg\",\"contentUrl\":\"https:\/\/cdn.dmcinfo.com\/wp-content\/uploads\/2017\/07\/27152847\/aerospace-and-defense-f22-rocket.jpg\",\"width\":2560,\"height\":1706,\"caption\":\"Rome GA USA - October 13, 2018 : Taken this picture of the Lockheed Martin F-22 Raptor performing at airshow in front of general public on a sunny autumn morning. In the picture the airplane flying higher up in blue sky at a reduced speed. The airplane was performing in front of thousands of general public in and photographers. 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