Defense http://machinedesign.com/taxonomy/term/8209/more en An Off-Roading Helicopter Takes Off http://machinedesign.com/automotive/roading-helicopter-takes <div class="node-body article-body"><p style="font-size: 13px; line-height: 20px;"><a href="https://www.advancedtacticsinc.com/technology/black-knight/" style="font-size: 13px;" target="_blank">The Black Knight Transformer</a>, an off-road vehicle that can take-off and fly like a helicopter, successfully completed initial flight tests, according to its developer,&nbsp;<a href="http://www.advancedtacticsinc.com" style="font-size: 13px;" target="_blank">Advanced Tactics Inc.</a>, El Segundo, Calif.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/automotive/roading-helicopter-takes" target="_blank">read more</a></p> http://machinedesign.com/automotive/roading-helicopter-takes#comments Automotive Technologies Defense Thu, 17 Apr 2014 14:10:00 +0000 36571 at http://machinedesign.com How thrusters and controls on NASA’s LADEE work http://machinedesign.com/defense/how-thrusters-and-controls-nasa-s-ladee-work <div class="node-body article-body">Using a set of three instruments on the LADEE, scientists are measuring the chemical composition of the moon’s atmosphere. They also hope to determine whether lunar dust, electrically charged by sunlight, caused a presunrise glow above the lunar horizon during several Apollo missions. Here’s how the craft uses two thrusters and centralized controls to get around.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/defense/how-thrusters-and-controls-nasa-s-ladee-work" target="_blank">read more</a></p> http://machinedesign.com/defense/how-thrusters-and-controls-nasa-s-ladee-work#comments Defense Tue, 25 Mar 2014 14:34:00 +0000 35811 at http://machinedesign.com DoD tests nuclear-delivery system http://machinedesign.com/defense/dod-tests-nuclear-delivery-system <div class="node-body article-body">Technicians at Sandia National Laboratory tested a B61-11 ground-penetrating bomb built to deliver a nuclear weapon by dropping it from a hoist onto a concrete target.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/defense/dod-tests-nuclear-delivery-system" target="_blank">read more</a></p> http://machinedesign.com/defense/dod-tests-nuclear-delivery-system#comments Defense Tue, 11 Feb 2014 14:45:00 +0000 33981 at http://machinedesign.com Darpa explores membrane telescope for spying on Earth http://machinedesign.com/defense/darpa-explores-membrane-telescope-spying-earth <div class="node-body article-body">Darpa explores membrane telescope for spying on Earth</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/defense/darpa-explores-membrane-telescope-spying-earth" target="_blank">read more</a></p> http://machinedesign.com/defense/darpa-explores-membrane-telescope-spying-earth#comments Defense Tue, 17 Dec 2013 20:24:00 +0000 32861 at http://machinedesign.com U. S. Navy sub launches drone while underwater http://machinedesign.com/defense/u-s-navy-sub-launches-drone-while-underwater <div class="node-body article-body">U. S. Navy sub launches drone while underwater</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/defense/u-s-navy-sub-launches-drone-while-underwater" target="_blank">read more</a></p> http://machinedesign.com/defense/u-s-navy-sub-launches-drone-while-underwater#comments Defense Tue, 17 Dec 2013 14:52:00 +0000 32811 at http://machinedesign.com How advanced burst discs prevent pressure failures http://machinedesign.com/pneumatics/how-advanced-burst-discs-prevent-pressure-failures <div class="field-byline"> David Hawrylo, Principal Engineer, Technetics Group (www.techneticsgroup.com) </div> <div class="node-body article-body"><p><img alt="" src="/site-files/machinedesign.com/files/uploads/2013/12/BurstDisc-SM-1a2a.jpg" style="width: 350px; height: 197px; float: right; margin: 5px;" title="These low-pressure burst discs are for fueling systems in aircraft. They both protect against pressure surges and are compatible with jet fuel.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/pneumatics/how-advanced-burst-discs-prevent-pressure-failures" target="_blank">read more</a></p> http://machinedesign.com/pneumatics/how-advanced-burst-discs-prevent-pressure-failures#comments Defense Pneumatics Mon, 16 Dec 2013 20:02:00 +0000 32781 at http://machinedesign.com Space freighter begins resupplying space station http://machinedesign.com/defense/space-freighter-begins-resupplying-space-station <div class="field-deck"> A commercial rocket launcher and delivery capsule become the second privately owned spacecraft to carry cargo to the ISS. </div> <div class="node-body article-body"><p><img alt="" src="/site-files/machinedesign.com/files/uploads/2013/09/312-Space-Cygnus-18.jpg" style="width: 401px; height: 266px; margin: 5px; float: right;" title="Cygnus navigates itself to within 40&nbsp;ft of the space station.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/defense/space-freighter-begins-resupplying-space-station" target="_blank">read more</a></p> http://machinedesign.com/defense/space-freighter-begins-resupplying-space-station#comments Defense Mon, 02 Dec 2013 16:38:00 +0000 32501 at http://machinedesign.com Image Gallery: Celebrating the X-15 altitude record http://machinedesign.com/technologies/image-gallery-celebrating-x-15-altitude-record <div class="node-body gallery-body"><p>A little over 50 years ago, NASA&rsquo;s X-15 rocket-powered aircraft flew to over 354, 000 ft., an altitude record that stood for over 40 years. The X-15s flew for the first time in June 1959 and made 199 flights in its 10-year history. NASA had three X-15s built as part of its hypersonic research program.<br /> </p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/technologies/image-gallery-celebrating-x-15-altitude-record" target="_blank">read more</a></p> http://machinedesign.com/technologies/image-gallery-celebrating-x-15-altitude-record#comments Technologies Defense Fri, 20 Sep 2013 16:46:00 +0000 30371 at http://machinedesign.com NASA ion thruster sets endurance record http://machinedesign.com/defense/nasa-ion-thruster-sets-endurance-record <div class="node-body article-body"><p> <img alt="" src="/site-files/machinedesign.com/files/uploads/2013/09/12383_SM_Ion%201.jpg" style="width: 300px; height: 232px; margin: 5px; float: right;" title="Engineers assemble the NASA Evolutionary Xenon Thruster (NEXT) before it begins its 5.5-year endurance test.</p></div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/defense/nasa-ion-thruster-sets-endurance-record" target="_blank">read more</a></p> http://machinedesign.com/defense/nasa-ion-thruster-sets-endurance-record#comments Batteries/Power Supplies Defense Thu, 12 Sep 2013 12:48:00 +0000 29791 at http://machinedesign.com "Robo Sally" Replicates Human Capabilities in Dangerous Situations http://machinedesign.com/robo-sally-replicates-human-capabilities-dangerous-situations <div class="node-body link-body">Developed by the Johns Hopkins Applied Physics Laboratory, HDT Robotics, Synbotics, and Silvus Technologies, Robo Sally allows humans to operate in dangerous situations and still have full capabilities using its highly dexterous robotic arms, stereo vision, and an all terrain mobile platform. </div> <div class="field-image-promo"> <img class="imagefield imagefield-field_image_promo" width="595" height="335" alt="Robo-Sally robot AUVSI robotics Johns Hopkins University" src="http://machinedesign.com/site-files/machinedesign.com/files/robo-sall-auvsi.jpg?1378318418" /> </div> <div class="field-link-target"> <span>Open In New Window:&nbsp;</span> No </div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/robo-sally-replicates-human-capabilities-dangerous-situations" target="_blank">read more</a></p> Robo-Sally AUVSI robotics Johns Hopkins University Technologies Defense Robotics Wed, 04 Sep 2013 18:04:00 +0000 29481 at http://machinedesign.com Robo-Sally replicates human capabilities.