Deletion of Keel effect

Comment: The article may have been in an |imperfect state since 2007, but https://aviation.stackexchange.com/questions/26574/what-is-the-keel-effect this discussion on StackExchange demonstrates that it has been useful to others. It gets https://tools.wmflabs.org/pageviews/?project=en.wikipedia.org&platform=all-access&agent=user&start=2016-01&end=2017-05&pages=Keel_effect 600 visits a month, which is not bad for such a specialised topic. The effect is real, non-trivial, of interest to a wider audience - http://paperaeroplanes.com/blog/?p=22, https://www.reddit.com/r/flying/comments/4yftvf/question_about_keel_effect_on_low_wing_planes/, and the information can be verified in reliable sources. The current wording may be a little technical, but we |don't require every article to accessible to general audience. A quick search shows that the term is commonly used by aviators
Stance: keep
Cited policy: Wikipedia:Editing policy (WP:PERFECTION||WP:TECHNICAL)