Editing Concorde (section)

===Range===
To fly non-stop across the Atlantic Ocean, Concorde required the greatest supersonic [[Range (aeronautics)|range]] of any aircraft.<ref>{{cite web|title=Celebrating Concorde|url=http://www.britishairways.com/en-gb/information/about-ba/history-and-heritage/celebrating-concorde|publisher=British Airways|access-date=19 January 2016|archive-date=20 January 2016|archive-url=https://web.archive.org/web/20160120063601/http://www.britishairways.com/en-gb/information/about-ba/history-and-heritage/celebrating-concorde|url-status=live}}</ref> This was achieved by a combination of powerplants which were efficient at twice the speed of sound, a slender fuselage with high [[fineness ratio]], and a complex wing shape for a high [[lift-to-drag ratio]]. Only a modest payload could be carried and the aircraft was trimmed without using deflected control surfaces, to avoid the drag that would incur.<ref name='deltawing' /><ref name='fueltrim' />

Nevertheless, soon after Concorde began flying, a Concorde "B" model was designed with slightly larger fuel capacity and slightly larger wings with [[leading edge slats]] to improve aerodynamic performance at all speeds, with the objective of expanding the range to reach markets in new regions.<ref>{{cite web |url=http://www.concordesst.com/concordeb.html |title=Concorde SST: Concorde B |work=concordesst.com |access-date=13 September 2012 |archive-date=8 June 2007 |archive-url=https://web.archive.org/web/20070608082935/http://www.concordesst.com/concordeb.html |url-status=live}}</ref> It would have higher thrust engines with noise reducing features and no environmentally-objectionable [[afterburner]]. Preliminary design studies showed that an engine with a 25% gain in efficiency over the Rolls-Royce/Snecma Olympus 593 could be produced.<ref>{{cite journal |url=http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=TRD&recid=N9222540AH&q=Concorde+engines&uid=788858323&setcookie=yes |archive-url=https://web.archive.org/web/20110921055740/http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=TRD&recid=N9222540AH&q=Concorde+engines&uid=788858323&setcookie=yes |url-status=dead |archive-date=21 September 2011 |title=Propulsion challenges and opportunities for high-speed transport aircraft |journal=Aeropropulsion |date=1987 |author=Strack, William |pages=437–52 |access-date=30 June 2011}}</ref> This would have given {{convert|500|mi|0|abbr=on}} additional range and a greater payload, making new commercial routes possible. This was cancelled due in part to poor sales of Concorde, but also to the rising cost of aviation fuel in the 1970s.<ref>{{cite web |url=https://news.google.com/newspapers?id=Q-0cAAAAIBAJ&pg=6914,3256355 |title=Fuel costs kill Second Generation of Concordes |first=Alison |last=Smale |work=Sarasota Herald-Tribune |date=22 September 1979 |access-date=28 November 2020 |archive-date=14 April 2021 |archive-url=https://web.archive.org/web/20210414125209/https://news.google.com/newspapers?id=Q-0cAAAAIBAJ&pg=6914,3256355 |url-status=live}}</ref>