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new wingtip design
On Fri, 27 Feb 2015 22:02:08 -0800, mmartin46 wrote:
I've been flying airplanes professionally for close to forty years and sailplanes for fun. I spend a lot of time looking at the wing trying to understand how it works. In the end, I conclude it's all magic. I kinda like that. I've never forgotten one cloudy day with a low overcast. I was in a car, driving away from Heathrow toward Chobham Common, which put us directly under the approach to Heathrow, when a 747 dropped out of the overcast on finals. For a few seconds it was heading for us, grabbing the bottom of the cloud and flinging it at the ground: it was like watching a waterfall beneath its wing. That sight made me realise two things: that a 747 really does weigh a couple hundred tons and that the reaction from deflecting that huge mass of air downward has more than a little to do with keeping it in the air. -- martin@ | Martin Gregorie gregorie. | Essex, UK org | |
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