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Old 07-23-2009 | 06:15 AM
  #3  
da Rock
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From: Near Pfafftown NC
Default RE: Free Flight Pitch Stability?

How do they do it?
It's not just the size of the tail that matters. It's way back there. The force from that area however far back it is is called "tail moment".

Very few aeronautic things are simple enough that a sound byte covers it. Trying to describe stuff in single sentences usually doesn't work either, no matter how long the sentence.

Not only is that tail way back, but you also mention those long, narrow wings. The airfoil chord also has a major role in how much tail moment is needed to control pitch. Or more exactly a narrow wing chord needs less tail moment than a wide one. Wing chord and tail moment, two things that matter and should be considered.

This stuff isn't sound byte simple.