{"id":270115,"date":"2021-06-09T13:22:20","date_gmt":"2021-06-09T10:22:20","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap\/"},"modified":"2021-06-09T13:22:20","modified_gmt":"2021-06-09T10:22:20","slug":"supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap\/","title":{"rendered":"#Supersonic flights are making a comeback \u2014 and they still won&#8217;t be cheap"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a365137ad547\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a365137ad547\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap\/#Breaking_the_sound_barrier\" >Breaking the sound barrier<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap\/#Supersonic_jet_noise\" >Supersonic jet noise<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap\/#Sustainable_aviation_fuel\" >Sustainable aviation fuel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/buradabiliyorum.com\/en\/supersonic-flights-are-making-a-comeback-and-they-still-wont-be-cheap\/#A_return_to_supersonic_flights\" >A return to supersonic flights?<\/a><\/li><\/ul><\/nav><\/div>\n<p>&#8220;<strong>#Supersonic flights are making a comeback \u2014 and they still won&#8217;t be cheap<\/strong>&#8221;<\/p>\n<div>United Airlines has announced it will purchase up to 50 <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/edition.cnn.com\/2021\/06\/03\/investing\/united-supersonic-flights\/index.html\">Boom Overture supersonic jets<\/a> for commercial use by 2029, heralding the return of supersonic passenger flights nearly 20 years after the Concorde was <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.history.com\/this-day-in-history\/the-concorde-makes-its-final-flight\">decommissioned<\/a>.<\/p>\n<p>Supersonic planes halve the time it takes to fly from New York to London, from seven hours down to 3.5 hours, but such airliners were abandoned following Concorde\u2019s final flight in 2003. Concorde had become <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.independent.co.uk\/news\/uk\/home-news\/end-of-an-era-concorde-is-retired-114575.html\">financially unworkable<\/a> after a <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.history.com\/this-day-in-history\/concorde-jet-crashes\">high-profile crash<\/a> in 2000, combined with excessive ticket prices, high fuel consumption, and increasingly high maintenance costs.<\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Introducing the United supersonic fleet.<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/united?ref_src=twsrc%5Etfw\">@United<\/a> will purchase up to 50 Overture airliners and fly the fleet on 100% sustainable aviation fuels. <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/t.co\/zVG2aMCVKx\">https:\/\/t.co\/zVG2aMCVKx<\/a><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/hashtag\/BoomSupersonic?src=hash&amp;ref_src=twsrc%5Etfw\">#BoomSupersonic<\/a><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/t.co\/kg9eoFT2Ww\">pic.twitter.com\/kg9eoFT2Ww<\/a><\/p>\n<p>\u2014 Boom Supersonic (@boomaero) <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/twitter.com\/boomaero\/status\/1400406948546220036?ref_src=twsrc%5Etfw\">June 3, 2021<\/a><\/p>\n<\/blockquote>\n<p>If Boom\u2019s supersonic aircraft is to succeed, it will depend on overcoming these issues that derailed Concorde. So can it be done?<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Breaking_the_sound_barrier\"><\/span>Breaking the sound barrier<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Supersonic flights are so called because they <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/trip-and-travel\/\" data-internallinksmanager029f6b8e52c=\"10\" title=\"Trip &amp; Travel\" target=\"_blank\" rel=\"noopener\">travel<\/a> faster than the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.grc.nasa.gov\/www\/k-12\/airplane\/sound.html\">speed of sound<\/a>. To do this, the aircraft must break through the sound barrier, which requires an efficient aerodynamic design to reduce drag, and considerable thrust from powerful engines to overcome the turbulence caused by shock waves.<\/p>\n<figure><iframe loading=\"lazy\" title=\"The sonic boom problem - Katerina Kaouri\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/JO4_VHM69oI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><figcaption><em><span class=\"caption\">Breaking the sound barrier produces a loud sonic boom.<\/span><\/em><\/figcaption><\/figure>\n<p>Breaking the sound barrier also requires engines which burn through lots of jet fuel \u2013 <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nationalgeographic.co.uk\/science-and-technology\/2019\/08\/how-concorde-pushed-limits-then-pushed-them-too-far\">one of Concorde\u2019s key drawbacks<\/a> and something that\u2019s only become more contentious in recent years. You\u2019d therefore expect Boom, which is in the prototype stage of developing the Overture, to concentrate its designs on increasing fuel efficiency.<\/p>\n<p>The Colorado-based company is likely to choose between a turbojet and turbofan engine. A <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.britannica.com\/technology\/turbojet\">turbojet<\/a> produces all of its thrust from its exhaust gas when it is moving at faster speeds. A <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.britannica.com\/technology\/turbofan\">turbofan<\/a> engine, meanwhile, derives most of its thrust from the amount of the air it accelerates with its fan blades. The amount of this air defines the engine\u2019s \u201cbypass ratio\u201d.<\/p>\n<p>Higher bypass ratio turbofan engines are more fuel efficient than turbojets. Their lower exhaust speed makes them quieter, but they tend to be larger, resulting in higher drag at supersonic speeds. This drag penalty has outweighed the efficiency of turbofans for prolonged supersonic flight in the past.<\/p>\n<p>A good compromise might be a low bypass turbofan with an afterburner, which injects additional fuel to significantly increase the available thrust, and is commonly used on military jets. Such an engine was used in early production versions of another supersonic passenger jet, the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/simpleflying.com\/tupolev-tu-144\/\">Russian Tupelov Tu-144<\/a>, but was too inefficient because it needed to keep firing its afterburners to maintain supersonic cruise.<\/p>\n<figure class=\"align-center \">\n<p><figure class=\"post-image post-mediaBleed aligncenter\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/Tupolev_Tu-144#\/media\/File:RIAN_archive_566221_Tu-144_passenger_airliner.jpg\"><img loading=\"lazy\" decoding=\"async\" sizes=\"auto, (min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px\" alt=\"A Russian supersonic jet in flight\" width=\"600\" height=\"365\" class=\"js-lazy\" src=\"https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" srcset=\"https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=459&amp;fit=crop&amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=459&amp;fit=crop&amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=459&amp;fit=crop&amp;dpr=3 2262w\"\/><noscript><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" alt=\"A Russian supersonic jet in flight\" width=\"600\" height=\"365\" class=\"\" srcset=\"https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=459&amp;fit=crop&amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=459&amp;fit=crop&amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/404791\/original\/file-20210607-27-akd6bz.jpeg?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=459&amp;fit=crop&amp;dpr=3 2262w\"\/><\/noscript><\/a><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thenextweb.com\/news\/#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fshift%2F2021%2F06%2F09%2Fsupersonic-flights-making-comeback-still-wont-able-afford-syndication%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: Russia\u2019s Tu-144 supersonic passenger airliner was in operation from 1968 to 1999. Image via RIA Novosti\/wikimedia, CC BY\" data-title=\"Share Russia\u2019s Tu-144 supersonic passenger airliner was in operation from 1968 to 1999. Image via RIA Novosti\/wikimedia, CC BY on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share Russia\u2019s Tu-144 supersonic passenger airliner was in operation from 1968 to 1999. Image via RIA Novosti\/wikimedia, CC BY on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>Russia\u2019s Tu-144 supersonic passenger airliner was in operation from 1968 to 1999. Image via RIA Novosti\/wiki<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a>, CC BY<\/figcaption><\/figure>\n<\/p>\n<\/figure>\n<p>The Tu-144\u2019s afterburner also contributed to a very noisy cabin, humming loudly <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nasa.gov\/centers\/langley\/news\/factsheets\/TU-144.html\">at 90 decibels<\/a> \u2013 roughly the sound generated by a hairdryer \u2013 which exceeds regulatory safety limits. The Concorde\u2019s turbojets, meanwhile, only needed afterburners at take-off and to break through the sound barrier, improving its fuel economy and lowering cabin noise while supercruising.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Supersonic_jet_noise\"><\/span>Supersonic jet noise<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Due to the noise they generate, supersonic jets <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.mercatus.org\/system\/files\/mercatus-dourado-supersonic-transport-v1.pdf\">aren\u2019t allowed<\/a> to fly over land. But these restrictions could be lifted with refined aerodynamic design. For example, research by Nasa on its <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nasa.gov\/specials\/X59\/\">X-59 QueSST programme<\/a> hopes to produce optimized airframe shapes which could significantly reduce overland sonic booms to a much quieter \u201cthud\u201d \u2013 coming in at 75 decibels rather than the Concorde\u2019s 105 decibel boom.<\/p>\n<p>Getting the aerodynamics right could also open up the possibility of using modern, lightweight composite materials to enable better thrust-to-weight ratios \u2013 perhaps eliminating the need for afterburners at take-off.<\/p>\n<p>Substantial developments in <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.sciencedirect.com\/topics\/engineering\/computational-fluid-dynamic\">computational fluid dynamics<\/a> software and other simulation programs since the 1970s will be crucial in evaluating these designs and getting them certified to Boom\u2019s tight production deadlines.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sustainable_aviation_fuel\"><\/span>Sustainable aviation fuel<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Boom is also promoting its aircraft\u2019s green credentials. Part of the United deal involves collaborative development in establishing a reliable supply of <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.iata.org\/en\/programs\/environment\/sustainable-aviation-fuels\/\">sustainable aviation fuel<\/a>. This will ultimately benefit other aircraft in United\u2019s fleet and the industry at large, which currently produces around <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.iea.org\/reports\/aviation\">2.8% of<\/a> all global CO\u2082 emissions from fossil fuel combustion.<\/p>\n<p>Sustainable aviation fuels include biofuels and synthetic kerosene that are manufactured using renewable and sustainable materials. An impressive <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.iata.org\/en\/programs\/environment\/sustainable-aviation-fuels\/\">80% reduction<\/a> in lifecycle CO\u2082 emissions is often quoted. The key word here though is \u201clifecycle\u201d; it doesn\u2019t necessarily mean less harmful emissions from the engine.<\/p>\n<p>These sustainable fuels are compatible with conventional jet fuel, which means no changes to airport fueling infrastructure or engine design will be needed for them to be introduced \u2013 a critical factor in their uptake. But these fuels are very expensive, because the raw materials needed to make them aren\u2019t available at scale. The total amount of sustainable aviation fuel currently being used amounts to just 0.1% of the total fuel spent in the air. Projections estimate this <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.airbus.com\/newsroom\/stories\/sustainable-aviation-fuel.html\">needs to reach<\/a> somewhere between 1.4% and 3.7% before such fuels become economically viable.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"A_return_to_supersonic_flights\"><\/span>A return to supersonic flights?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Boom will be optimistic that it can overcome fuel efficiency challenges by the time its aircraft begins carrying fare-paying passengers in 2029. Those fares look set to be high, with Boom anticipating a ~$5,000 (\u00a33,500) price tag per seat. In 1996, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.britannica.com\/technology\/Concorde\">British Airways charged<\/a> around \u00a35,350 \u2013 \u00a38,800 (~$12,500) in today\u2019s prices \u2013 for round-trip tickets from New York to London.<\/p>\n<p>This means that, like Concorde before it, the Boom Overture looks aimed at the luxury market \u2013 beyond the reach of even business class passengers. It is likely to be frequented only by those who currently travel via private jet, who may be enticed by <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/boomsupersonic.com\/sustainability\">Boom\u2019s claims<\/a> to be a sustainable aircraft manufacturer.<\/p>\n<p>So, while supersonic passenger jets may return to our skies by the end of the decade, the closest most of us will get to experiencing them will be when they unleash their characteristic sonic booms above our heads.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img loading=\"lazy\" decoding=\"async\" style=\"border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important; text-shadow: none !important;\" alt=\"The Conversation\" width=\"1\" height=\"1\" class=\"js-lazy\" src=\"https:\/\/counter.theconversation.com\/content\/162268\/count.gif?distributor=republish-lightbox-basic\"\/><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https:\/\/theconversation.com\/republishing-guidelines --><\/p>\n<p><noscript><img loading=\"lazy\" decoding=\"async\" style=\"border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important; text-shadow: none !important;\" src=\"https:\/\/counter.theconversation.com\/content\/162268\/count.gif?distributor=republish-lightbox-basic\" alt=\"The Conversation\" width=\"1\" height=\"1\" class=\"\" srcset=\"\"\/><\/noscript><\/p>\n<p><em>This article by\u00a0<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/profiles\/peter-thomas-1239477\">Peter Thomas<\/a>, Senior Lecturer in Aerospace Engineering, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/institutions\/university-of-hertfordshire-799\">University of Hertfordshire<\/a>,\u00a0is republished from <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\">The Conversation<\/a> under a Creative Commons license. Read the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/supersonic-flights-are-set-to-return-heres-how-they-can-succeed-where-concorde-failed-162268\">original article<\/a>.<\/em><\/p>\n<\/div>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/thenextweb.com\/news\/supersonic-flights-making-comeback-still-wont-able-afford-syndication\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;#Supersonic flights are making a comeback \u2014 and they still won&#8217;t be cheap&#8221; United Airlines has announced it will purchase up to 50 Boom Overture supersonic jets for commercial use by 2029, heralding the return of supersonic passenger flights nearly 20 years after the Concorde was decommissioned. Supersonic planes halve the time it takes to&#8230;<\/p>\n","protected":false},"author":1,"featured_media":270116,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img-cdn.tnwcdn.com\/image\/shift?filter_last=1&fit=1280,640&url=https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Boom-United-Airlines-Supersonic-Flight-hed.jpg&signature=2862cd006f5cedf5e97db32bbc0e14b9","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-270115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/270115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=270115"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/270115\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/270116"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=270115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=270115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=270115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}