{"id":90262,"date":"2018-09-13T17:56:00","date_gmt":"2018-09-13T21:56:00","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-398699"},"modified":"2024-02-14T17:52:14","modified_gmt":"2024-02-14T22:52:14","slug":"x-57-maxwell","status":"publish","type":"post","link":"https:\/\/www.nasa.gov\/centers-and-facilities\/armstrong\/x-57-maxwell\/","title":{"rendered":"X-57 Maxwell Overview"},"content":{"rendered":"<div id=\"\" class=\"padding-top-5 padding-bottom-3 width-full maxw-full hds-module hds-module-full wp-block-nasa-blocks-article-intro\"><div class=\"width-full maxw-full article-header\"><div class=\"margin-bottom-2 width-full maxw-full\"><p class=\"label carbon-60 margin-0 margin-bottom-3 padding-0\">9 min read<\/p><h1 class=\"display-48 margin-bottom-2\">X-57 Maxwell Overview<\/h1><\/div><\/div><\/div>\n\n<div id=\"\" class=\"nasa-gb-align-center nasa-button-link padding-y-1 padding-x-0 hds-module wp-block-nasa-blocks-related-link\">\n\t<a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2020\/10\/afrc-fs-109-10-28-19.pdf?emrc=574ff8\" target=\"_blank\" class=\"button-primary button-primary-md link-external-true\" aria-label=\"Downloadable X-57 Fact Sheet\">\n\t\t<span class=\"line-height-alt-1\">Downloadable X-57 Fact Sheet<\/span>\n\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"button-primary-circle\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t<\/a>\n\n\t<\/div>\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1041\" height=\"703\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?w=1041\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"This artist's concept of NASA's X-57 Maxwell aircraft shows the plane's specially designed wing and 14 electric motors.\" style=\"transform: scale(1); transform-origin: 51% 5%; object-position: 51% 5%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg 1041w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?resize=300,203 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?resize=768,519 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?resize=1024,692 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?resize=400,270 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?resize=600,405 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/12\/x-57_maxwell_city_1.jpg?resize=900,608 900w\" sizes=\"(max-width: 1041px) 100vw, 1041px\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">This artist’s concept of NASA’s X-57 Maxwell aircraft shows the plane’s specially designed wing and 14 electric motors.<\/div><div class=\"hds-credits\">NASA<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>NASA\u2019s X-57 “Maxwell” is the agency\u2019s first all-electric experimental aircraft, or X-plane, and is NASA\u2019s first crewed X-plane in two decades. The primary goal of the X-57 project is to share the aircraft\u2019s electric-propulsion-focused design and airworthiness process with regulators, which will advance certification approaches for distributed electric propulsion in emerging electric aircraft markets.<\/p>\n\n\n\n<p>The X-57 will undergo as many as three configurations as an electric aircraft, with the final configuration to feature 14 electric motors and propellers (12 high-lift motors along the leading edge of the wing and two large wingtip cruise motors).<\/p>\n\n\n\n<p>The X-57 team is using a \u201cdesign driver\u201d as a technical challenge, to drive lessons learned, as well as best practices. This design driver includes a 500 percent increase in high-speed cruise efficiency, zero in-flight carbon emissions, and flight that is much quieter for the community on the ground.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Converting Existing Aircraft<\/strong><\/h2>\n\n\n\n<p>The X-plane is being built by modifying a baseline Italian Tecnam P2006T to be powered by an electric propulsion system. The advantage of using an existing general aviation aircraft design is that data from the baseline model, powered by traditional combustion engines, can be compared to data produced by the same model powered by electric propulsion.<\/p>\n\n\n\n<p>The project is being executed through four phases, referred to as \u201cmodifications\u201d, of testing.<\/p>\n\n\n\n<p>The X-57 Maxwell project includes four configurations and stages of research, called modifications.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Modification I<\/strong><\/h2>\n\n\n\n<p>The first phase of investigating the potential for electric propulsion included defining the requirements of the research, along with systems analysis, design, and a number of tests, both in the air and on the ground.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>LEAPTech<\/strong><\/h2>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1521\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?w=2048\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"The Hybrid-Electric Integrated Systems Testbed performs a full power ground test.\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg 2206w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=300,223 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=768,570 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=1024,760 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=1536,1141 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=2048,1521 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=400,297 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=600,446 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=900,668 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=1200,891 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?resize=2000,1485 2000w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">The Hybrid-Electric Integrated Systems Testbed performs a full-power ground test at 224 kW of Leading-Edge Asynchronous Propeller Technology to test lift at low speeds.<\/div><div class=\"hds-credits\">NASA \/ Tom Tschida<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>One of the earliest evaluations during the Modification I phase included ground validation of the distributed electric propulsion high-lift system, in 2015. The Leading Edge Asynchronous Propeller Technology testing, or LEAPTech, performed this validation on the Rogers Dry Lakebed at Edwards Air Force Base in California. The project was a collaboration between NASA and California companies Empirical Systems Aerospace of San Luis Obispo, and Joby Aviation of Santa Cruz.<\/p>\n\n\n\n<p>An experimental electric wing, named the Hybrid Electric Integrated Systems Testbed, or HEIST, was hoisted atop a heavily modified big rig, which drove at speeds close to 80 mph to simulate the effects of a wind tunnel. The wing was outfitted with 18 electric motors and propellers, which ran simultaneously during the lakebed runs.<\/p>\n\n\n\n<p>The tests showed that the motors produced a total of 300 horsepower. It validated that the airflow from the distributed 18 motors generated more than double the lift of the unblown wing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Tecnam Data Collection<\/strong><\/h2>\n\n\n\n<p>In 2015, NASA pilots and engineers also performed test flights of a production-instrumented Tecnam P2006T in the skies above and around Edwards Air Force Base. The purpose of the flights was to collect data, such as lift, drag, cruise efficiency, energy usage and ride quality.<\/p>\n\n\n\n<p>The X-57 is a P2006T integrated with an electric propulsion system, which will be flown to gather data from similar flights. The two sets of data will be analyzed and compared, helping NASA\u2019s X-57 team to meet its design driver of validating the ability of distributed electric propulsion to improve efficiency.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Modification II<\/strong><\/h2>\n\n\n\n<p>The project\u2019s second phase includes several milestones for X-57. In addition to continued systems testing and validation, Mod II marked the beginning of physical integration of X-57 itself into its earliest stage as an electric aircraft.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Battery Redesign and Validation<\/strong><\/h2>\n\n\n\n<p>As an all-electric experimental aircraft, X-57 will be powered through the use of lithium ion battery systems. In order to implement these systems as safely as possible, NASA first had to validate that the batteries could safely power an entire flight profile, and demonstrate the system\u2019s ability to isolate any rapid temperature increase to prevent it from spreading, and escalating into a fire \u2013 an event known as a \u201cthermal runaway\u201d.<\/p>\n\n\n\n<p>NASA engineers <a href=\"https:\/\/www.nasa.gov\/centers\/armstrong\/feature\/X-57_battery_major_milestone.html\" rel=\"noopener\">achieved this milestone following a system redesign<\/a> in 2017, allowing the batteries to be fabricated, and ensuring a safe environment for the test program. The successful battery redesign was shared publicly, providing an immediate benefit to the industry as a result of the research.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Simulator<\/strong><\/h2>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1365\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?w=2048\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"X-57 principal investigator Sean Clarke flies the X-57 simulator.\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg 3024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=768,512 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=1024,683 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=1536,1024 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=2048,1365 2048w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=600,400 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=900,600 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=1200,800 1200w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2021\/07\/afrc2016-0357-01.jpg?resize=2000,1333 2000w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">X-57 principal investigator Sean Clarke flies the X-57 simulator at NASA\u2019s Armstrong Flight Research Center, examining ideal maneuvers and reaction times for flight.<\/div><div class=\"hds-credits\">NASA \/ Lauren Hughes<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>Pilots and engineers <a href=\"https:\/\/www.nasa.gov\/centers\/armstrong\/features\/X-57_simulator_prepares_pilots.html\" rel=\"noopener\">developed and began flying an X-57 simulator<\/a> at NASA\u2019s Armstrong Flight Research Center in California, designed to feature the specifications of the electric propulsion system. The interactive simulator began preparing pilots for X-57\u2019s future flight-testing phase.<\/p>\n\n\n\n<p>Flight control engineers and technicians at NASA Armstrong developed the simulator to provide a virtual flight experience based on what the X-plane itself will actually feel like when it\u2019s in the air. The system helps familiarize pilots with the system and makes them more adept with reaction times and maneuvers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Airvolt<\/strong><\/h2>\n\n\n\n<p>Before an experimental electric system could be integrated into an aircraft, it had to first be tested and validated. A 13.5-foot tall test stand <a href=\"https:\/\/www.nasa.gov\/centers\/armstrong\/feature\/All-electric_X-57_Cruise_Motors_Begin_Testing.html\" rel=\"noopener\">helped NASA researchers better understand<\/a> the intricacies of electric motor systems, and provided validation for the thrust of the electric motors. In addition to helping engineers anticipate system integration challenges, the stand helped to verify the components of electric propulsion.<\/p>\n\n\n\n<p>As early-stage technology is further evaluated, confidence in its use for future systems is established. Managing the differences between traditional aircraft propulsion and distributed electric propulsion is made easier by finding methods of managing those differences.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Electric Retrofit and Testing<\/strong><\/h2>\n\n\n\n<p>The Modification II version of the X-57 looks similar to the baseline 2006T, except the two traditional inboard combustion engines are replaced by two inboard electric motors, essentially turning the aircraft\u2019s propulsion system electric.<\/p>\n\n\n\n<p>Ground taxi tests at NASA Armstrong help to examine and validate the safety and functionality of the electric system, while flight tests will seek to validate the X-57\u2019s electric motors, battery, and instrumentation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Modification III<\/strong><\/h2>\n\n\n\n<p>Work on the third phase of the project began in tandem with Modification II, with the goal of taking the X-57 to a new level of experimental electric-powered flight.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>High-Aspect Ratio Experimental Wing <\/strong><\/h2>\n\n\n\n<p>Perhaps the most noticeable difference from the X-57\u2019s Modification II configuration is the development and integration of an <a href=\"https:\/\/www.nasa.gov\/centers\/armstrong\/features\/X-57-wing-tests-complete.html\" rel=\"noopener\">experimental, high-aspect ratio wing<\/a>. Designed by Xperimental of San Luis Obispo, California, the wing features a large reduction in area, with wing loading increasing from 17 pounds per square foot to 45 pounds per square foot.<\/p>\n\n\n\n<p>The reduction in wing area also contributes to more efficient cruise flight through decreasing friction drag. The final Modification IV effort will demonstrate that the high aspect ratio wing with the integrated high lift motor system will allow the X-57 to take off and land at the same speed as the baseline P2006T. The aircraft will also be less sensitive to gusts and turbulence, leading to a smoother flight.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Relocation of Cruise Motors<\/strong><\/h2>\n\n\n\n<p>One of the most critical, and noticeable, elements of the high aspect ratio wing is the relocation of the large cruise motors to the wing tips. The replacement of 100-horsepower Rotax 912S engines with 60-kilowatt motors, developed by Joby Aviation, reduce the weight of each motor and propeller from approximately 125 pounds to about 57 pounds.<\/p>\n\n\n\n<p>The much lighter-weight electric motors allow for their relocation outboard. By moving the cruise motors from their Mod II inboard position to the wingtips for Mod III, the cruise motors recover energy that would otherwise be lost in the wingtip vortices.<\/p>\n\n\n\n<p>Nacelles, which are outer casings that can generally act as housing for an aircraft\u2019s engine, are also installed along the leading edge of the wing where 12 high-lift motors will eventually be positioned.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Modification IV <\/strong><\/h2>\n\n\n\n<p>The final configuration of the X-57 presents the X-plane in its full, experimental configuration.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>12 Leading Edge High-Lift Motors<\/strong><\/h2>\n\n\n\n<p>The X-57, in its final form of the project, features 12 high-lift motors along the leading edge of the distributed electric propulsion wing. Similar to the 18 small motors used during LEAPTech ground tests, the high-lift motors are electrically powered to generate enough lift for X-57 to be able to take off at standard Tecnam P2006T speeds, even with the high aspect ratio experimental wing.<\/p>\n\n\n\n<p>The high-lift motors and propellers are designed to activate, along with the wingtip cruise motors, to get the X-plane airborne. When the plane levels out for cruise mode, the high-lift motors will then deactivate, and the five propeller blades for each motor will then stop rotating, and will fold into the nacelles, so that they don\u2019t create unwanted drag during cruise. The two wingtip cruise motors will maintain flight during this phase of the flight.<\/p>\n\n\n\n<p>When the time comes to land, the motors will then reactivate, and centrifugal force will cause the propeller blades to unfold and create the appropriate lift for approach and landing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Environmentally Friendly Aviation<\/strong><\/h2>\n\n\n\n<p>The design driver for X-57 will also seek to reach the goal of zero carbon emissions in flight, which would surpass the 2035 N+3 efficiency goals. Electric propulsion provides not only a five-to-ten times reduction in greenhouse gas emissions, but it also provides a technology path for aircraft to eliminate 100 Low Lead AvGas, which is the leading contributor to current lead environmental emissions.<\/p>\n\n\n\n<p>Additionally, since the X-57 will be battery-powered, it can run off renewable based electricity, making clear the environmental and economic advantages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Specifications <\/strong><\/h2>\n\n\n\n<p><strong>(Based on Mod IV configuration)<\/strong><\/p>\n\n\n\n<p>Goal: Help develop certification standards for emerging electric aircraft markets.<\/p>\n\n\n\n<p>Design Driver: 500% increase in high-speed cruise efficiency, zero in-flight carbon emissions, and flight that is much quieter for the community on the ground.<\/p>\n\n\n\n<p>Objectives are to:<\/p>\n\n\n\n<ul>\n<li>Mod II: Demonstrate 3.3-times lower energy use at high speed compared to original P2006T.<\/li>\n\n\n\n<li>Mod III: Demonstrate 1.5-times lower energy use at high speed compared to Mod II.<\/li>\n<\/ul>\n\n\n\n<p>Aircraft Weight: Approximately 3,000 pounds.<\/p>\n\n\n\n<p>Maximum Operational Altitude: 14,000 feet.<\/p>\n\n\n\n<p>Cruise Speed: 172 mph (at 8,000 feet)<\/p>\n\n\n\n<p>Critical Takeoff Speed: 58 knots (67 mph).<\/p>\n\n\n\n<p>Batteries:<\/p>\n\n\n\n<ul>\n<li>Lithium Ion.<\/li>\n\n\n\n<li>860 pounds.<\/li>\n\n\n\n<li>69.1 kilowatt hours (47 kilowatt hours usable)<\/li>\n<\/ul>\n\n\n\n<p>Cruise Motors and Propellers (2):<\/p>\n\n\n\n<ul>\n<li>60 kilowatts.<\/li>\n\n\n\n<li>Air-cooled.<\/li>\n\n\n\n<li>5-foot diameter propeller.<\/li>\n\n\n\n<li>Out-runner, 14-inch diameter.<\/li>\n\n\n\n<li>117 pounds each, combined weight.<\/li>\n<\/ul>\n\n\n\n<p>High-Lift Motors and Propellers (12):<\/p>\n\n\n\n<ul>\n<li>5-blade, folding propeller.<\/li>\n\n\n\n<li>10.5 kilowatts.<\/li>\n\n\n\n<li>Air-cooled.<\/li>\n\n\n\n<li>1.9 foot diameter propeller.<\/li>\n\n\n\n<li>15 pounds each, combined weight.<\/li>\n<\/ul>\n\n\n<div id=\"\" class=\"nasa-gb-align-full width-full maxw-full padding-x-3 padding-y-0 article_a hds-module hds-module-full wp-block-nasa-blocks-credits-and-details\">\n<section class=\"padding-x-0 padding-top-5 padding-bottom-2 desktop:padding-top-7 desktop:padding-bottom-9\">\n\t<div class=\"grid-row grid-container maxw-widescreen padding-0\">\n\t\t<div class=\"grid-col-12 desktop:grid-col-2 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n\t\t\t<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t<h2 class=\"heading-14\">Share<\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"padding-bottom-2\">\n\t\t\t\t\t<ul class=\"social-icons social-icons-round\">\n\t\t\t\t\t\t<li class=\"social-icon social-icon-x\">\n\t\t\t\t\t\t\t<a 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xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M9 8h-3v4h3v12h5v-12h3.642l.358-4h-4v-1.667c0-.955.192-1.333 1.115-1.333h2.885v-5h-3.808c-3.596 0-5.192 1.583-5.192 4.615v3.385z\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-linkedin\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&url=https%3A%2F%2Fwww.nasa.gov%2Fcenters-and-facilities%2Farmstrong%2Fx-57-maxwell%2F\" aria-label=\"Share on LinkedIn.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M4.98 3.5c0 1.381-1.11 2.5-2.48 2.5s-2.48-1.119-2.48-2.5c0-1.38 1.11-2.5 2.48-2.5s2.48 1.12 2.48 2.5zm.02 4.5h-5v16h5v-16zm7.982 0h-4.968v16h4.969v-8.399c0-4.67 6.029-5.052 6.029 0v8.399h4.988v-10.131c0-7.88-8.922-7.593-11.018-3.714v-2.155z\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<li class=\"social-icon social-icon-rss\">\n\t\t\t\t\t\t\t<a href=\"\/feed\/\" aria-label=\"Subscribe to RSS feed.\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 800 800\" aria-hidden=\"true\"><path d=\"M493 652H392c0-134-111-244-244-244V307c189 0 345 156 345 345zm71 0c0-228-188-416-416-416V132c285 0 520 235 520 520z\"\/><circle cx=\"219\" cy=\"581\" r=\"71\"\/><\/svg>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\">\n\t\t\t<div class=\"padding-top-3 border-top-1px border-color-carbon-black\">\n\t\t\t\t<div class=\"margin-bottom-2\">\n\t\t\t\t\t<h2 class=\"heading-14\">Details<\/h2>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row margin-bottom-3\">\n\t\t\t\t\t<div class=\"grid-col-4\">\n\t\t\t\t\t\t<div class=\"subheading\">Last Updated<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"grid-col-8\">Feb 14, 2024<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<div class=\"grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0\"><div class=\"padding-top-3 border-top-1px border-color-carbon-black \"><div class=\"margin-bottom-2\"><h2 class=\"heading-14\">Related Terms<\/h2><\/div><ul class=\"article-tags\"><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/armstrong\/\">Armstrong Flight Research Center<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/aeronautics\/\">Aeronautics<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/aeronautics-research-mission-directorate\/\">Aeronautics Research Mission Directorate<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/directorates\/armd\/iasp\/\">Integrated Aviation Systems Program<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/aeronautics\/nasa-aircraft\/\">NASA Aircraft<\/a><\/li><li class=\"article-tag\"><a href=\"https:\/\/www.nasa.gov\/aeronautics\/x-57-maxwell\/\">X-57 Maxwell<\/a><\/li><\/ul><\/div><\/div>\n\t<\/div>\n<\/section>\n\t<\/div>\n\n<div id=\"\" class=\"hds-topic-cards nasa-gb-align-full maxw-full width-full padding-y-6 padding-x-3 color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-topic-cards\">\t\t<div class=\"grid-container grid-container-block-lg padding-x-0\">\n\t\t\t<div class=\"grid-row flex-align-center margin-bottom-3\">\n\t\t\t\t<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n\t\t\t\t\t<div class=\"label color-carbon-60 margin-bottom-2\">Keep Exploring<\/div>\n\t\t\t\t\t<h2 class=\"heading-36 line-height-sm\">Discover More About Armstrong<\/h2>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<div class=\"grid-row grid-gap-2 hds-topic-cards-wrapper\">\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/armstrong\/capabilities-facilities\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Armstrong Capabilities & Facilities<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1279\" src=\"https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=1920&h=1279&fit=clip&crop=faces%2Cfocalpoint\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=1920&h=1279&fit=crop&crop=faces%2Cfocalpoint 1920w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=300&h=200&fit=crop&crop=faces%2Cfocalpoint 300w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=768&h=512&fit=crop&crop=faces%2Cfocalpoint 768w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=1024&h=682&fit=crop&crop=faces%2Cfocalpoint 1024w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=1536&h=1023&fit=crop&crop=faces%2Cfocalpoint 1536w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=400&h=266&fit=crop&crop=faces%2Cfocalpoint 400w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=600&h=400&fit=crop&crop=faces%2Cfocalpoint 600w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=900&h=600&fit=crop&crop=faces%2Cfocalpoint 900w, https:\/\/images-assets.nasa.gov\/image\/AFRC2022-0063-096\/AFRC2022-0063-096~large.jpg?w=1200&h=799&fit=crop&crop=faces%2Cfocalpoint 1200w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/armstrong\/programs-projects\/aeronautics-projects\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Armstrong Aeronautics Projects<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1041\" height=\"695\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?w=1041\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg 1041w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?resize=300,200 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?resize=768,513 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?resize=1024,684 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?resize=400,267 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?resize=600,401 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/03\/afrc2020-0128-028_0.jpg?resize=900,601 900w\" sizes=\"(max-width: 1041px) 100vw, 1041px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/armstrong\/programs-projects\/science-projects\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Armstrong Science Projects<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"864\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?w=1536\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg 1600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=300,169 300w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=768,432 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=1024,576 1024w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=1536,864 1536w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=400,225 400w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=600,338 600w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=900,506 900w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2018\/12\/uavsar20181120b-16.jpg?resize=1200,675 1200w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/armstrong\/programs-projects\/space-projects\/\" class=\"mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0\">\n\t\t\t\t<div class=\"hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black\">\n\t\t\t\t\t<div class=\"skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200\">\n\t\t\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<p class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Armstrong Space Projects<\/span>\n\t\t\t\t\t\t\t\t<svg viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<figure class=\"hds-media-background  \"><img loading=\"lazy\" decoding=\"async\" width=\"746\" height=\"1334\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?w=746\" class=\"attachment-1536x1536 size-1536x1536\" alt=\"\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png 746w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?resize=168,300 168w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?resize=573,1024 573w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?resize=224,400 224w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?resize=336,600 336w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?resize=503,900 503w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/02\/fo-world-view-stratollite.png?resize=671,1200 671w\" sizes=\"(max-width: 746px) 100vw, 746px\" \/><\/figure>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>NASA\u2019s X-57 “Maxwell” is the agency\u2019s first all-electric experimental aircraft, or X-plane, and is NASA\u2019s first crewed X-plane in two decades. The primary goal of the X-57 project is to share the aircraft\u2019s electric-propulsion-focused design and airworthiness process with regulators, which will advance certification approaches for distributed electric propulsion in emerging electric aircraft markets. The […]<\/p>\n","protected":false},"author":9,"featured_media":109684,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[],"footnotes":""},"categories":[2855,2660,2874,3306,2821,3393],"news-tags":[],"internal-terms":[12258],"coauthors":[3854],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"X-57 Maxwell Overview","url":"https:\/\/www.nasa.gov\/centers-and-facilities\/armstrong\/x-57-maxwell\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/centers-and-facilities\/armstrong\/x-57-maxwell\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg"},"articleSection":"NASA Centers & Facilities","author":[{"@type":"Person","name":"NASA"}],"creator":["NASA"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["Missions","X-57 Maxwell","Armstrong Flight Research Center","Aeronautics","Aeronautics Research Mission Directorate","Integrated Aviation Systems Program","NASA Aircraft"],"dateCreated":"2018-09-13T21:56:00Z","datePublished":"2018-09-13T21:56:00Z","dateModified":"2024-02-14T22:52:14Z"},"rendered":"<meta name=\"parsely-title\" content=\"X-57 Maxwell Overview\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/centers-and-facilities\/armstrong\/x-57-maxwell\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2018-09-13T21:56:00Z\" \/>\n<meta name=\"parsely-section\" content=\"NASA Centers & Facilities\" \/>\n<meta name=\"parsely-tags\" content=\"Missions,X-57 Maxwell,Armstrong Flight Research Center,Aeronautics,Aeronautics Research Mission Directorate,Integrated Aviation Systems Program,NASA Aircraft\" \/>\n<meta name=\"parsely-author\" content=\"NASA\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":9,"time_ago":"6 years","featured_image":{"id":109684,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2019\/10\/ed15-0137-59.jpg","title":"ed15-0137-59","alt":"The Hybrid-Electric Integrated Systems Testbed performs a full power ground test.","caption":""},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/90262"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/comments?post=90262"}],"version-history":[{"count":11,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/90262\/revisions"}],"predecessor-version":[{"id":615405,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/90262\/revisions\/615405"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/109684"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=90262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=90262"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=90262"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=90262"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=90262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}