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All Moving tail question

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berridos

Well-Known Member
Joined
Oct 10, 2009
Messages
1,164
Location
madrid
Hi Everybody

I understand why a U-Tail has an increase in horizontal effective aspect ratio and can be 5% smaller than a conventional tail. Basically because of the chastity belts the endplates represent.

What I dont understand is why an all moving tail can be sized 10-15% smaller than a conventional tail according to Raymer.
Could anybody shed some light on this?
What about an all moving U-tail?
Could it be 15% smaller? How do these effects affect the calculations/parameter?
 
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