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Old 11th August 2009 | 23:31
  #17 (permalink)  
hawk37
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Joined: May 2003
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Microburst,
If we can, lets keep the jet engine vs turbprop discussion aside. Swept wings was the specific topic.
I understand what you have said about the CL/aoa curve, just trying to relate that to an aircraft at Vref, for old times sake lets say 1.3 x Vso.
Now, it doesnt matter if we're a swept wing aircraft or straight wing, in the situation I asked, the aircraft is at Vref presumably, at dh descending to 50 feet or so for the landing.
You've got a better grasp of this than I have, so bear with me for this...
Regardless of whether it's straight wing or swept wing, there's still this 1.3 margin in speed over the power off stall speed. So...either aircraft at that speed can generate 1.69 times it's lift (L proportional to V squared). Now I know MFS is going to chime in here and say it's really 1.23 squared, but it's the concept I'm trying to demonstrate.
Basically, this means at the extreme, swept or non swept wing aircraft both have the same 1.69 G capability. So, why is hard to land a swept wing aircraft vs non swept at idle thrust?
If it's really then because of the added drag, as you say, of the swept wing aircraft at higher aoa? If so, push up the thrust levers!!
Beer number 4. Hope I'm making sense
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