== Ventral or Dorsal fin ? == 

 2008 redesign:  
 :With the new larger fin the dorsal fin was unneeded and was deleted from the design to save weight 

 :Dorsal = top  
 :Ventral = bottom 

 I very much doubt that the dorsal fin was removed. This should read ventral, do we have to copy errors from our sources? [14][24]  

 [24]:The dorsal fin on the bottom' of the tail contributed nothing to overall stability  

 Further down the article mentions that the ventral fin was added (back?) to the production aircraft.