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![]() "DR" wrote in message ... Dudley Henriques wrote: "Blanche" wrote in message ... On 5/14/2007 2:03:24 AM, "Bravo Two Zero" wrote: A small plane crashed into Lake Pleasant, just outside of Phoenix, at approx 8pm Friday, while the pilot was reportedly talking on his cellphone and flying 10 feet above the water. Can you have "ground effect" over water? There's a great story about the crew of a Pan Am Stratocruiser I think it was, who were low on fuel and a long way out over the ocean. They let down to within a wingspan's distance over the water, leaned it back a ton, played with the RPM, and made it home. Can't remember the source of the story, but I do remember reading it a long time ago. Dudley Henriques Maybe a true story but I think the the odds are they would have been much better off at high altitude. As I understand it, induced drag is only reduced by 10% at 50% of wing span above surface. At 20% of wing span altitude the drag is still ~70% (Surface skimming birds actually go lower, nearly touching the water with their wing tips). Of course if the Stratocourser dropped to say 10' it could have worked better... -kersplash! Cheers MarkC If I remember right, nobody reporting on the incident reflected on what they might have done, only on what they actually did. They very well might have optimized range at altitude. I can't remember the specifics involved. Knowing the exact circumstances would make it a lot more clear for those interested in making a judgment on the incident I would imagine. Dudley Henriques |
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