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On Thu, 6 Jan 2005 13:34:48 -0800, "Peter Duniho"
wrote: "kontiki" wrote in message ... In theory of course. In the case of the 172 with 40 degrees of flaps they contribute more drag than lift. In practice too. The relative amounts of drag and lift are irrelevant to the fact that using the flaps lowers the stall speed, and that doing so does not make it any easier "to end up real slow in a slip". Your assertion that "With full flaps its easy to end up real slow in a slip and approach a stall" is just plain nonsense, and certainly has nothing to do with the *warning* (not prohibition) against slipping while flaps are extended (even if there were something to your claim about flaps making it easier to stall). Pete Odd, but interesting thread. I haven't heard of tail stall before. But if I've got the basics correct, don't flaps allow the aircraft to fly at slow airspeeds with a lower angle of attack, including both wing and tailplane? So flaps should reduce the likelihood of any stall, provided enough power is applied to those draggy 40 deg settings. The wing stalls at a specific angle of attack, and I don't think the flaps change that characteristic; not that it has been suggested anywhere. I may be wrong, but isn't this one reason why airliners need flaps at landing? So they don't bounce the tail on touchdown? Or more likely so the pilot can see the landing area; aside from just reducing required runway length. -- Mike |
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