Editing Stall (fluid dynamics) (section)

==History==
German aviator [[Otto Lilienthal]] died while flying in 1896 as the result of a stall. [[Wilbur Wright]] encountered stalls for the first time in 1901, while flying his second glider. Awareness of Lilienthal's accident and Wilbur's experience motivated the [[Wright Brothers]] to design their plane in "[[Canard (aeronautics)|canard]]" configuration. This purportedly made recoveries from stalls easier and more gentle. The design allegedly saved the brothers' lives more than once.<ref>{{cite web |url-status=dead| url=http://www.nasm.si.edu/wrightbrothers/fly/1900/designing.cfm |title=Designing the 1900 Wright Glider |archive-url=https://web.archive.org/web/20110927002349/http://www.nasm.si.edu/wrightbrothers/fly/1900/designing.cfm |archive-date=2011-09-27 |website=The Wright Brothers }}</ref> Although, canard configurations, without careful design, can actually make a stall unrecoverable.<ref>{{Cite web|title=What Are Canards, And Why Don't More Aircraft Have Them?|url=http://www.boldmethod.com/learn-to-fly/aircraft-systems/canards/ |url-status=dead |archive-url=https://web.archive.org/web/20210504020824/http://www.boldmethod.com/learn-to-fly/aircraft-systems/canards/ |archive-date=4 May 2021 |access-date=2021-06-27|website=Boldmethod |first=Aleks |last=Udris |date=14 August 2014}}</ref>

The aircraft engineer [[Juan de la Cierva]] worked on his "[[Autogiro]]" project to develop a [[Rotary-wing aircraft|rotary wing aircraft]] which, he hoped, would be unable to stall and which therefore would be safer than aeroplanes. In developing the resulting "[[autogyro]]" aircraft, he solved many engineering problems which made the [[helicopter]] possible.